KAVAN BETA 1400 Blue Motor Glider Instruction Manual

KAVAN BETA 1400 Blue Motor Glider Instruction Manual

Congratulation on your purchase of a KAVAN Line electronic controller for brushless motors. The state-of-the-art KAVAN Line covers almost the entire range of electric powered planes flown by a Sunday flyer. All the ESCs can be quickly programmed using your transmitter and even easier with the optional KAVAN Card

PRECAUTIONS:

This R/C model is not a toy. Use it with care and stricktly following the instructions in this manual.

Assemble this model following stricktly these instructions. DO NOT modify or alter the model. Failure to do so, the warranty will lapse automatically. Follow the instructions in order to obtain a safe and solid model at the end of the assembly.

Children under the age of 14 must operate the model under the supervision of an adult.
Assure that the model is in perfect conditions before every flight, taking care that all the equipment works correctly and that the model is undamaged in its structure.
Fly only in days with light breeze and in a safe place away from any obstacles

Receiver

• Receiver
• Receiver aerial
• Binding button
• Y-cable
• (CH1) Aileron servo L
• (CH1) Aileron servo R
• CH2) Elevator Servo
• (CH3) ESC
• (CH4) Rudder Servo
• Motor
• Electronic speed controller (ESC)
• Li-Po flight pack
• Red (+)
• Black (-)

Receiver Aerial

The receiver aerial should be positioned in such a manner the active part (the last 30 mm with a translucent insulation) was as straight as possible.
The black (or dark grey) part of the aerial is a feeder (coaxial cable) that does not take any part in the signal reception. You can bend it if necessary – carefully and not in a sharp angle – a gentle arc is what are we looking for here.
The aerial should be secured e.g. to the side of fuselage with strips of sticky tape.
The active part of the aerial has to be located as far as possible from conductive parts of your model (wires, battery pack…).

INTRODUCTION

Congratulation on your purchase of the BETA 1400 motor powered glider. You are about to embark on a magical journey into the fascinating world of electric powered RC aeroplanes.

The BETA 1400 manufactured of the virtually unbreakable EPO foam packed with the latest 2.4GHz radio technology and powered with a mighty brushless motor and Li-Po batteries will help to become an experienced pilot in no time! BETA 1400 is not just an entry level plane but actually a quite good thermal glider that will please any Sunday pilot – a newcomer as well as a seasoned pro!

FEATURES

• 100% factory-made, partially assembled model
• Aileron, elevator, rudder and throttle control
• Easy handling and high stability; durable, virtually unbreakable electric motor powered glider
• State-of-the-art 2.4GHz eight channel radio (RTF Set only)
• Powerful brushless outrunner motor
• Large wing area, low weight
• Lightweight Li-Po flight pack (RTF Set only)
• Fast charger for the flight pack (RTF Set only)

SPECIFICATION

• Wingspan: 1400 mm
• Length: 966 mm
• All-up Weight: 700-770 g
• Wing Area: 24.5 dm2
• Wing Loading: 28.6-31.4 g/dm2
• Motor: C2814-1400 outrunner
• ESC: KAVAN R-20B 20 A with BEC 5 V

SAFETY PRECAUTIONS

General Warnings
An R/C aeroplane is not a toy! If misused, it can cause serious bodily harm and damage to property. Fly only on a safe place following all instructions and recommendations in this manual. Beware of the propeller! Keep loose items that can get entangled in the propeller away from the spinning propeller, including loose clothing, or other objects such as pencils and screwdrivers. Ensure that yours and other people’s hands, and face are kept away from the rotating propeller.

Note on Lithium Polymer Batteries
Lithium Polymer batteries are significantly more vulnerable than alkaline or NiCd/NiMH batteries used in R/C applications. All manufacturer’s instructions and warnings must be followed closely. Mishandling of LiPo batteries can result in fire. Always follow the manufacturer’s instructions when disposing of Lithium Polymer batteries.

Additional Safety Precautions and Warnings
As the user of this product, you are solely responsible for operating it in a manner that does not endanger yourself and others or result in damage to the product or the property of others. This model is controlled by a radio signal that is subject to interference from many sources outside your control.

This interference can cause momentary loss of control so it is advisable to always keep a safe distance in all directions around your model, as this margin will help to avoid collisions or injury.
Never operate your model with low transmitter batteries.
Always operate your model in an open area away from power lines, cars, traffic, or people.

Avoid operating your model in populated areas where injury or damage can occur.

Carefully follow the directions and warnings for this and any optional support equipment (chargers, rechargeable batteries, etc.) which you use.
Keep all chemicals, small parts and anything electrical out of the reach of children.

Moisture causes damage to electronics. Avoid water exposure to all equipment not specifically designed and protected for this purpose. Never lick or place any portion of your model in your mouth as it could cause serious injury or even death.

SET CONTENTS

RTF Set:

• 100% factory-made, partially assembled model (4 servos GO-09, brushless motor, 20 A ESC, 7×6” prop)
• 2.4GHz 8-channel transmitter and 8-channel receiver
• 11.1 V/1600 mAh Li-Po flight pack
• Li-Po fast charger

ARTF Set

• 100% factory-made, partially assembled model (4 servos GO-09, brushless motor, 20 A ESC, 7×6” prop)

YOU WILL ALSO NEED THE FOLLOWING ACCESSORIES AND TOOLS (not included in the kit)

For the RTF Set:
4 AA batteries for the transmitter.

Tools:
Small Phillips and flat screwdrivers, 1.5 mm Allen key or screwdriver.

Glue:
Medium or thick cyanoacrylate glue (e.g. KAV9952 or KAV9953), low or medium strength threadlocker (blue – e.g. KAV9970).

For the ARF Set:
At least a 4-channel transmitter and receiver, Li-Po flight pack 11.1 V 1600- 2700 mAh.

Tools:
Small Phillips and flat screwdrivers, 1.5 mm Allen key or screwdriver.

Glue:
Medium or thick cyanoacrylate glue (e.g. KAV9952 or KAV9953), low or medium strength threadlocker (blue – e.g. KAV9970).

T8FB TRANSMITTER CONTROLS

BETA 1400: Servo Reverse Switch Default Position

Transmitter

System: 2.4GHz FHSS
Frequency Range: 2.400-2.4835 GHz
Output Power: <20 dBm (Tx)/<4 dBm (BT)
Input voltage: 4.8-11.1 V (4x AA alkaline batteries or NiMH accumulators, 2S or 3S Li-Po)

Receiver (2.4 GHz FHSS)

Frequency Range: 2.400-2.4835 GHz
Output Power Range: ca 500 m on the ground, ca 1000 m in the air
Input voltage: 4.8-10.0 V
Dimensions: 48,5x21x11 mm / Weight: 7 g

TRANSMITTER (RTF SET VERSION)

Loading the Transmitter Batteries
Remove the battery hatch located on the back side of the transmitter pushing the cover at the arrow mark with your thumb. Load 4 fresh alkaline batteries or AA size accumulators carefully keeping the correct polarity (marked on the bottom of the battery holder). Plug the battery holder cable into the socket at the bottom of the battery compartment keeping the correct polarity (+) red wire, (-) black wire. (The transmitter features a protection circuitry – if you connect the plug the other way around, the transmitter will not work, but will not be destroyed by reversed polarity.) We especially recommend low self- discharge NiMH batteries as the Panasonic Eneloop® 1900 mAh or KAVAN 2000 mAh ones.
Put the hatch back in place.

Charging the Transmitter Batteries
The accumulators have to be charged prior the first flight.

CAUTION: Never ever try to charge the primary (zinc-carbon, alkaline…) batteries that are not rechargeable. Otherwise explosion and/or fire might happen!.

Checking the Transmitter Battery
Turn on the transmitter and check the LED on the front panel – both the red and green has to glow. These LEDs indicate the status of the transmitter, not the transmitter battery voltage. The low battery alarm is acoustic – once you will hear beeping you have to land immediately and replace/recharge the batteries. If the transmitter beeps immediately after being turned on, DO NOT try to fly at all.

CAUTION: Do not mix different types of batteries or accumulators or fresh batteries with (partly) discharged. Do not mix regular (zinc-carbon) batteries with alkaline batteries.

Checking the Servo Reverse Switches position
Set the servo reverse switches to the default position – CH1 DOWN (R), CH2, CH3 and CH4: UP (N). Turn the transmitter off.

CHARGING THE FLIGHT BATTERY

Your BETA 1400 is to be powered by a 3-cell Li-Po battery pack. The Li-Po battery supplied in the RTF Set features two connectors: one is for the balanced charge of the cells (JST-XH type) and the other one is dedicated to the discharge (XT60). The RTF set contains also a dedicated KAVAN C3 wall fast charger (230 V/50 Hz) designed for charging of the flight pack using the balance cable

Charging the Flight Battery (RTF Set)

1. Connect the power cable to the charger.
2. Plug the power cable of the charger into the mains socket (230 V/50 Hz). All the LED glow green and flash red indicating the charger is ready to charge
3. Plug the balance connector of your flight battery (JST-XH) into the corresponding socket on the charger.
4. The charger starts charging. LEDs will start to glow red. If 2S pack is connected, Cell 1 and Cell2 LEDs will glow red; if 3S pack is connected, Cell 1, Cell2 and Cell3 LEDs will glow red.
5. Once a particular cell in the flight battery has been fully charged, the corresponding LED will glow green. 2S pack will be fully charged, if Cell 1 and Cell2 LEDs glow green; 3S pack will be fully charged, if Cell 1, Cell2 and Cell3 LEDs glow green.
6. Disconnect the flight battery from the charger; LEDs will glow green indicating the charger is ready to charge another pack. Unplug the charger from the mains socket if you are not going to charge another battery.

WARNING: Charge the Li-Po battery with the battery charger included in the RC Set or with a fully compatible charger that assures a safe charge to the Li-Po pack. Always follow the safety precautions as laid down in the manufacturer’s manual.

In the charging process, keep your charger and your battery in a cool and shady place, away from any possible source of fire. Do not cover the charger or the battery with clothes or similar: the ventilation is crucial for the necessary cooling of the devices.

Important: Never leave unguarded the battery in charge. If the battery becomes too hot or starts to “inflate”, disconnect it immediately from the charger.

ASSEMBLY

Wing

1. Locate the carbon tube wing joiner, insert it into the housing in the fuselage and slide both wing halves onto the joiner.
   

2. Connecting the aileron servos:
   A. A radio featuring only one aileron channel (like the T8FB supplied in the RTF set): Connect both two aileron servos to the Y-cable. The aileron Y-cable is to be connected to the aileron channel of your receiver (CH1 in the case of T8FB)
   
   B: A radio featuring 2 independent aileron servo channels: Use two 20-30 ccm extension cables (not supplied in the kit) to connect aileron servos to your receiver (typically, CH1 and CH5 or CH6 – it depends on the transmitter and its setting – please refer to the instruction manual of your radio)

3. Secure the wing halves by careful tightening the setting screws on the bottom side of the wing.
   

Tail Feathers

1. Glue the horizontal tailplane into the fuselage using medium or thick cyano. Be sure the elevator horn is on the bottom side
   

2. Before the glue sets, check the correct alignment of the horizontal tailplane – it has to be square to the fin.
   

3. Insert the elevator push rod into the push rod connector in the elevator horn.
   

RC SET INSTALLATION

Now you have to install/connect your receiver, servos and electronic speed controller (ESC).

1. Remove the canopy; lift the rear part up to disengage the magnetic lock.
2. Following you radio instruction manual connect the servos and ESC to your receiver – the table shows the channel assignment of the T8FB radio supplied in the RTF kit:
   Connector Label| Function| Receiver Channel (T8FB)
   ---|---|---
   AILE| Ailerons| CH1
   ELEV| Elevator| CH2
   ESC| Throttle| CH3
   RUDD| Rudder| CH4
3. Put your receiver into the fuselage (into the rear part of the cockpit); you can secure it using a strip of hook-and-loop tape to the fuselage.
4. The flight battery pack is to be inserted into the nose of your BETA 1400 and secured by the hook-and-loop tape to the fuselage – the exact position of the battery pack will be determined later during the Centre of Gravity position check.
   CAUTION: Always turn on your transmitter first and only then connect the flight pack to the ESC. From now on always handle your model as if the motor might burst into life and the propeller start to spin anytime!

PREFLIGHT CHECK

CHECKING THE CURRENT SET-UP

1. Assure that the transmitter is turned on (both the LEDs are on with the T8FB), place all the trims in their neutral positions and set the throttle stick into the lowest position. Connect the flight pack to the ESC – the red LED on the receiver must glow. If it blinks or does not glow at all, the receiver and transmitter require establishing their link by the binding procedure – refer to the page 6 in this manual
   

2. Checking the control surface neutrals
   Please check all the control surfaces are in the neutral position if the corresponding transmitter sticks and trims are in the centre position. If not, please loosen the setting screw of the corresponding push rod connector and set the control surface to the neutral position. The elevator and rudder has to be flush with the horizontal stabilizer resp. the fin, both two ailerons have to be flush with the wing trailing edge. Once satisfied, apply a drop of threadlocker to the setting screw a tighten it.
   CAUTION: If the quick link got loose during flight, your model could become partly or completely uncontrollable. Therefore, you should check the linkage regularly.

3. Testing the Ailerons
   A) Move the aileron stick to the left; (looking from the tail to the nose) the left aileron must move up and the right aileron must drop down simultaneously.
   B) Move the aileron stick to the right; the left aileron must drop down and the right aileron go up simultaneously.
   C) Return the aileron stick to the centre (neutral) – both two ailerons will return to the neutral position.
   Note: If the ailerons are moving in the opposite direction, you will have to reverse the direction by flipping the aileron reverse switch (AIL) on your transmitter.

4. Testing the Rudder
   A) Move the rudder stick to the left; (looking from the tail to the nose) the rudder must move to the left.
   B) Move the rudder stick to the right; the rudder must move to the right.
   C) Return the ruder stick to the centre (neutral) – the rudder will return to the neutral position.
   Note: If the rudder is moving in the opposite direction, you will have to reverse the direction by flipping the rudder reverse switch (RUD) on your transmitter.

5. Testing the Elevator
   A) The elevator stick is located on the left side on the Mode 1 transmitter or on the right side on the Mode 2 transmitter. Pull the elevator stick down; the elevator must move up).
   B) Push the elevator stick up; the elevator must move down.
   C) Return the elevator stick to the centre (neutral) – the elevator will return to the neutral position.
   Note: If the elevator is moving in the opposite direction, you will have to reverse the direction by flipping the elevator reverse switch (ELE) on your transmitter.

6. Control Surface Throws
   If you carefully followed the instruction in the previous sections of this manual, the correct default control surface throws has been set automatically. The control throws are set by the ratio between the length of the servo arm and the control surface throw – the actual throws set this way are listed in the column “Normal Rate” in the table below. (The throws are always measured in the widest point of the particular control surface.) It is always better to try to reach the requested throws mechanically, adjusting the arm/horn length ratio – even if you have got a fancy computer radio. If you got such a transmitter you can use the function “Dual Rate” (D/R) to get even more forgiving setup – please refer to the “Low Rate” column. You can also do it mechanicaly – simply move the push rod Z-bends on the servo arms closer to the centre.
   A. A radio featuring only one aileron channel Control| Low Rate| Normal Rate| **Expo*
   ---|---|---|---
   Aileron| 7 mm up and down| 10 mm up and down| 10-20%
   Rudder| 10 mm left and right| 12 mm left and right| 0-10%
   Elevator**| 6 mm up and down| 8 mm up and down| 20-30%

B. A radio featuring 2 independent aileron servo channels

*Expo – set to decrease the sensitivity around the neutral (Futaba, Hitec, Radiolink, Multiplex: -10/-20, Graupner: +10/+20 etc.)

7. Testing the Power system
   KAVAN T8FB/R-20B: Check the throttle channel reverse switch (THR) is in the “N“ (up) position on the transmitter. Now perform the throttle range calibration procedure as described in the KAVAN R-20B manual (refer to the attachment) and check the motor brake function has been turned on.
   A) Turn on the transmitter, set the throttle stick to the lowest position, connect the flight pack to the ESC in the model (ESC has to be set to the “Brake OFF” mode – if your ESC features this option). If the prop rotated slowly, please check the position of the throttle stick and throttle trim.
   B) Slowly move the throttle stick up, the prop should start to rotate clockwise (looking from behind). If it spins in the opposite direction, pull the throttle stick back, disconnect the flight battery and swap any two of the three cables between the motor and the ESC. The re-check again. Repeat the ESC throttle range calibration. Then re-check again.
   Note: If the motor does not respond to the throttle stick advance, check the model power cable connection and the state of charge of your battery.
   CAUTION: Keep away from the propeller once the battery will be connected to the model. Do not try to stop the propeller with your hands or anything else.

8. The Centre of Gravity
   A) The CG has to be located 70-75 mm behind the leading edge of the wing.
   Balance your BETA 1400 supporting the wing with your fingertips 70 mm behind the leading edge for the first flight.
   B) You can fine tune the CG position later to suit your requirements. Moving the CG forward the model flight will be more stable, moving backward the controls will be become more sensitive, also the thermalling performance might improve slightly. Note: Moving back the CG too much could cause your model would be hard to control or even so unstable that you would not able to control it at all.
   Now you are ready to fly!
   
   

FLYING

CHOOSING THE FLYING FIELD. WEATHER

Flying Field
The flying field should be a flat grassy area. There should be no cars, persons, animals, buildings, power lines, trees or large stones or any other obstacles that BETA 1400 might collide with within the range of ca 150 m. We highly recommend you to join a local model flying club – you will get access to their flying field along with advice and help to make your first steps into model flying much easier and safer

Weather
Calm summer evenings are perfect for the maiden flight. Your BETA 1400 is a light thermal glider that is the happiest with wind under 5 m/s. DO NOT fly when it is raining or snowing, on foggy days. Thunderstorms are clearly not the right time to fly either.

RANGE CHECK

Perform the range check as described in the instruction manual of your radio. Ask a friend to hold the transmitter, and walk away holding the model in a regular flight position in the height of your shoulders. The servos have to respond to control inputs (control stick movements) without any glitching or jitter, with the motor off and at full throttle within the range stated by the radio manufacturer. Only prepare to fly if the range check is 100% successful.

CAUTION: Never try to fly with your transmitter in the range check (reduced output power) mode

THE FIRST FLIGHT

Now the most important advice in this entire manual:
During the first flight we recommend that you have the support of an experienced RC pilot.

There is no shame in asking for help – new full size aircraft are test flown by skilled factory test pilots – and only then are regular pilots allowed to take control. RC model control requires some skills and reflexes people are not born with. It is not complicated to gain these skills – it just takes some time; this will vary with your natural talent. Full size pilots start under the supervision of a skilled instructor; they learn to fly at a safe altitude at first, learn landing and take-off techniques, and only then are they allowed to fly solo.

The same principles apply with RC models too. Please do not expect that you will be able to put your model in the air and fly it without any previous RC experience.

Many will have gained skills in controlling their favourite computer game character by hammering the control buttons or sticks. For model flying this skill will have to be unlearnt!

The sticks movements required to control your model are small & gentle. Many models including BETA 1400 are happier if you let them “fly by themselves” for most of the time, with small and gentle stick movements to simply guide the model in the required direction. RC flying is not about stick hammering, it is all about small stick movements, and observing the effect of that stick movement. Only later is it possible to anticipate the effect of larger stick movements that can be dangerous to your model in the earlier stages of model flying.

Step 1: Hand launch and initial trimming
The model must be launched into wind every time. Throw grass into the air to observe the wind direction.
Turn on your transmitter.
Connect and put the flight pack into the battery compartment and secure the canopy.

Hold your model with the wings and fuselage level (refer to the drawing) – it is better to ask a friend to launch your model than to do everything by yourself – you can then concentrate on the controls.

Give the model full throttle and launch your model with a gentle push straight and level. You will feel the point at which the model is trying to fly naturally. Do not give it too strong a push. Do not throw your model with nose up, or greater than 10 degrees down. The model must have a certain minimum speed from the very start to stay airborne. It is not enough to just “put” your model in the air.

Launch the model against the wind,

fuselage and wing level

If everything is OK BETA 1400 will climb gently. If your BETA 1400 loses altitude, pull the elevator stick very slightly towards you (just a little!) to achieve a steady climb.

Step 2: Flying
Keep your BETA 1400 climbing until she reaches at least 50 m in height, then throttle back the motor just to maintain the level flight. The real flying fun begins now.

Please note:
BETA 1400 is not a large model, so do not let her fly too far away. Please remember you can control your model only so long as you are able to see the model’s orientation in the air. The safe range of your radio is much further than the range of your eyes!

How to control your model?
In contrast to cars or boats, aircraft fly in three dimensional space which makes full control more complex. Turning the steering wheel left or right makes a boat or car to turn left or right, applying more throttle the vehicle speeds up – and this is it. Moving the control sticks left or right has more effect than simply turning the model. The aileron and rudder control will be explained later.

Please note: the control is fully proportional – the more you move the stick, the more movement of the control surface. The actual stick movement required is mostly quite small, and almost never from one end stop to the other!

Elevator controls the model in the vertical axis; apply up elevator and your model’s nose will raise (and the model will climb if it has sufficient power), apply down elevator and your model will descend. Please note that your model can only climb if it has sufficient power applied. Your model will not necessarily climb simply because you have applied up elevator, and will normally need full power applied for a safe gentle climb. If the climb angle is too great, or the power applied insufficient, your model will lose flying speed until the minimum (stall) speed. At the stalling speed (when the airflow starts to break away from the upper surface of the wing), your model will start to feel as though it is not responding as normal to control inputs, and then drop with little warning – apply down elevator to regain flying speed and full normal control

Ailerons control the angle of bank. If you gently move the aileron stick to the left, your model will start bank to the left as long as you are holding the stick. Now if you return the aileron stick to the centre position (neutral), your model will maintain the bank. If you want to resume straight flight you have to move the aileron stick to the opposite direction.

Rudder of a model without ailerons (you might be already familiar with) controls the angle of bank, which  thencontrols the rate of turn. Natural stability of your model keeps the wings level in normal straight flight. Since your BETA 1400 features a “full house” controls including ailerons that are the main means how to control the angle of bank, the use of the rudder is slightly different. You can even start to control your model without use of the rudder – but you will learn lately the correct coordinated turn actually requires both aileron and rudder inputs.

Any turn requires an appropriate bank angle – BETA 1400 will fly nice big and safe flat turns with only a small angle of bank. During initial flights never use a bank angle of greater than 45 degrees. By planning the direction that the model will take, normal turns will be made with less than 30 degrees of bank.
Move the rudder to the left a little way, and your model will bank into a gentle turn. Increase the rudder input a little more, and your model will continue turning to the left, but it will also start to descend (this is a good time to move the control stick to the centre to allow your model to recover from the dive!).

Why does your model descend when only rudder is applied? Once the rudder leaves its exactly vertical position it also starts to work as an elevator turned down telling your model to dive. When in a banked turn to maintain level flight it is necessary to apply a little up elevator to counter the effect of the down turned rudder. (Actually, the reason why your model descends in the bank is much more complex – the wing gives less lift in the bank as the vertical projection of the wing is the area that counts and you also have to beat the inertia that tries to keep your model in the straight flight…) The elevator applied when your model is in a banked turn also works like a rudder – fortunately it helps to maintain the turn!

Coordinated left turn (180°)

Control Surface Movement

In practise, the ailerons are used to put your model to the desired angle of bank, the rudder is used to maintain it, and the elevator input helps to control height whilst also increasing the rate of turn.
Alternatively, you can use only the ailerons to bank your model, then turn your model using just the elevator and finally resume the straight and level flight with the opposite deflection of ailerons.

We have got through about 3/4 of the turn and it is the time to think about returning to straight and level flight in the desired direction. Return the controls to the middle position (you may need to correct the turn with a little right ailerons and/or rudder). If necessary give slight elevator input to settle your model into a straight and level flight.

If you take a look at our drawing on the right you will notice that it takes some time until the model actually starts to turn. And, when leaving the turn, you have to start to apply the opposite ailerons and rudder sooner than the nose of your model is pointing to the desired final direction. The elevator and rudder deflections are marked with dotted lines – this is because you cannot tell exactly the track that the model will take during a gentle banked turn, or entry to straight and level flight.

Congratulations! You have learnt how to achieve a coordinated turn using rudder and elevator. Remember that model aircraft control is about guiding your model in the desired direction rather than precise steering. Another complication is the rudder control. It is easy and natural while the model is flying away from you, but when your model is flying toward you the direction of control commands has to be reversed. A simple trick when the model is flying towards you is to move the control stick towards the wing that you want to lift, imagine supporting the wing by moving the stick under that wing – it works!

Final setup
Now is the time for the final setup. Fly your BETA 1400 straight into wind, leave the controls in the neutral position. If the model turns in one direction apply the rudder trim in the opposite direction until BETA 1400 flies straight.
Without power your model must settle into a gentle glide, not too fast so that it plummets to the ground, and not so slow that the controls feel “soggy” and the model is on the edge of the stall. Apply the elevator trim in the way described in the initial trimming section.
If your model banks to a side, apply a little of the aileron trim in the opposite direction.

Powered and unpowered flight
The model has been already fine tuned for the unpowered phase of flight. When you turn on the motor your model might tend to pitch nose up when full throttle is applied. You cannot completely trim out this tendency with any motor powered glider – just be aware of this characteristic when flying your model. In practise you might have to make slight elevator corrections to maintain a gentle, but positive climb.

Landing
When the power available starts to reduce check that you landing field is clear of people and other obstructions. Position your model about 10 to 20m off the ground at the down wind end of your field. Make the final approach into wind, keeping the wings level all the time as your model descends slowly, and finally settles gently onto the ground. With more practice you will be able to use a little up elevator to “round out” (slow down the model) at less than 1m off the ground.

Congratulations!

APPENDIX

TRANSMITTER AND RECEIVER BINDING

The control signal of 2.4GHz transmitter contains an unique identification code that allows the receiver recognized the signal of “its own” transmitter and responded only to the right signal – no matter how many other 2.4 transmitters is operating in the vicinity. When a 2.4GHz RC set is prepared for the first use and always when a new receiver is to be used with your transmitter, you have to perform a procedure called “binding” in order to establish the link between your transmitter and receiver. During this process the receiver will recognize the ID of your transmitter and store it to its memory. From now on it will respond just to the signal of your transmitter.

T8FB/R8EF Binding Procedure

1. Place the transmitter and the receiver close to each other (within one meter).
2. Turn your transmitter ON and then your receiver.
3. There is a black binding button on the side of the R8EF receiver; press and hold the receiver binding button for about 2 seconds until the LED starts to blink on the receiver. After about 8 blinks the process is accomplished and the receiver LED will glow red steady.
4. Turn the receiver off and then on again; check the correct operation of all servos.

REPAIRS AND MAINTENANCE

• Please perform the range check in the beginning of each flying session.
• Before every take off please check the correct control surface movement.
• After every landing check the plane for any damage, loose push rod connectors or push rods, bent undercarriage, damaged propeller etc. Do not fly again until the damage is repaired.

Although your BETA 1400 is manufactured of the extra tough and virtually unbreakable extruded polyolephine (EPO) foam, damage or broken parts may occur. A minor damage can be repaired simply gluing the parts together with cyanoacrylate (CA) glue or with a clear sticky tape. In a case of a major damage it is always better to purchase a brand new spare part. A wide range of genuine spare parts and accessories is available through the KAVAN dealers

In the unfortunate event of a crash or heavy landing, no matter how minor or major, you must lower the throttle stick to its lowest positions as quickly as possible to prevent damage to the electronic speed controller in the control unit.

Failure to lower the throttle stick and trim to the lowest possible positions in the event of a crash could result in damage to the ESC, which may require replacement of the ESC.

Note: Crash damage is not covered under warranty

PROGRAMMABLE FUNCTIONS

1. Programmable Brake Setting (use the brake on for folding props applications only).
2. Programmable Battery Type (LiPo or NiCd/NiMH).
3. Programmable Low Voltage Cut-Off Type (power reduction or immediate shut down ).
4. Programmable Low Voltage Cut-Off Setting.
5. Programmable Soft Acceleration Start Ups (for gearbox and helicopter applications).
6. Programmable Timing Settings (to enhance ESC efficiency and smoothness).

SPECIFICATION

| BEC Type| Current (A) Cont./Burst| Input Voltage No. of cells| Weight (g)| BEC (Voltage/Current)| Dimensions (mm)
---|---|---|---|---|---|---
KAVAN R-6B| BEC| 6A\8A| 2Lipo| 5.5g| 5V/0.8A| 32x12x4.5
KAVAN R-12B| BEC| 12A\15A| 2-3Lipo| 9g| 5V/1A| 38x18x6
KAVAN R-15B| BEC| 15A\20A| 2-3Lipo| 16.5g| 5V/2A| 48×22.5×6
KAVAN R-20B| BEC| 20A\25A| 2-3Lipo| 19g| 5V/2A| 42x25x8
KAVAN R-30B| BEC| 30A\40A| 2-3Lipo| 37g| 5V/2A| 68x25x8
KAVAN R-40B| BEC| 40A\55A| 2-3Lipo| 39g| 5V/3A| 68x25x8
KAVAN R-40SB| SBEC| 40A\55A| 2-4Lipo| 43g| 5V/3A| 65x25x12
KAVAN R-50SB| SBEC| 50A\65A| 2-4Lipo| 41g| 5V/7A| 65x29x10
KAVAN R-60SB| SBEC| 60A\80A| 3-6Lipo| 63g| 5V/7A| 77x35x14
KAVAN R-80SB| SBEC| 80A\100A| 3-6Lipo| 82g| 5V/7A| 86x38x12

CONNECTING THE KAVAN ESC

The speed controller can be connected to the motor by soldering directly or with high quality connectors. Always use new connectors, which should be soldered carefully to the cables and insulated with heat shrink tube. Use only high quality connectors to connect the ESC to the flight pack as well – 2 mm gold plated connectors (KAV36.119 or KAV36.120) for currents up to 20A; 3,5 mm (KAV36.122), 4 mm (KAV36.126) gold plated connectors or DEANT® (KAV36.108) for currents up to 60A and 6 mm (KAV36.128) for currents up to 80A. The maximum length of the battery pack wires should be within 15 cm (6 inches).
Plug the UNI servo connector cable of the ESC to your receiver throttle output. The ESCs featuring BEC or SBEC voltage stabilizer will feed your receiver and servos from the flight battery pack.

KAVAN ESC Wiring Diagram

Please bear in mind improper polarity or short circuit will damage the ESC therefore it is your responsibility to double check all plugs for proper polarity, and proper connection BEFORE connecting the battery pack for the first time.

POWERING UP FOR THE FIRST TIME & THE AUTOMATIC THROTTLE CALIBRATION 

The KAVAN ESC features Automatic Throttle Calibration to ensure the smoothest throttle response and resolution throughout the entire throttle range of your transmitter. This step has to be performed just once to allow the ESC to “learn and memorize” the throttle output signal of your transmitter. It only needs to be repeated if you changed your transmitter.

1. Switch on the transmitter, move throttle stick to the top position.
2. Connect battery pack to the ESC, and wait for about 2 seconds.
3. The “Beep-Beep-” tone should be emitted, means the top point of throttle range has been confirmed.
4. Move throttle stick to the bottom position, several “beep-” tones should be emitted to present the amount of battery cells.
5. A long “Beep-” tone should be emitted, means the lowest point of throttle range has been correctly confirmed.

The throttle has been calibrated now and your ESC is ready for operation.

NORMAL ESC START-UP PROCEDURE

1. Move throttle stick to bottom position and then switch on transmitter.
2. Connect battery pack to ESC, special tone like “123” means power supply is OK.
3. Several “beep-” tones should be emitted to present the amount of lithium battery cells.
4. When self-test is finished, a long “beep—–” tone should be emitted.
5. Slowly move the throttle stick up, the prop should start to rotate clockwise (looking from the cockpit of the plane). If it spins in the opposite direction, pull the throttle stick back, disconnect the flight battery and swap any two of the three cables between the motor and the ESC. The re-check again.

PROTECTION FUNCTION

1. Start up failure protection: If the motor fails to start within 2 seconds of throttle application, the ESC will cut-off the output power. In this case, the throttle stick MUST be moved to the bottom again to restart the motor. (Such a situation happens in the following cases: The connection between ESC and motor is not reliable, the propeller or the motor is blocked, the gearbox is damaged, etc.).
2. Over-heat protection: When the temperature of the ESC is over about 110 Celsius degrees, the ESC will reduce the output power.
3. Throttle signal loss protection: The ESC will reduce the output power if throttle signal is lost for 1 second, further loss for 2 seconds will cause the output to be cut-off completely.

PROGRAMMABLE FUNCTIONS OF THE KAVAN ESC

1. Brake: ON/OFF
   ON – Sets the propeller to the brake position when the throttle stick is at the minimum position (Recommended for folding props). OFF – Sets the propeller to freewheel when the throttle stick is at the minimum position.

2. Battery type: LiPo or NiCd/NiMh

3. Low Voltage Cutoff Type: Reduce Power / Hard Cut-off
   Reduce Power – ESC reduces motor power when the preset Low Voltage Protection Threshold value is reached.
   Hard Cut-off – ESC instantly cuts motor power off when the preset Low Voltage Protection Threshold value is reached

4. Low Voltage Protection Threshold: (Low / Medium / High)

5. For Li-xx packs – the battery cell number is calculated automatically. Low / Middle / High cutoff voltage for each cell is: 2.85V/3.15V/3.3V. For example: For a 3S Lipo, when “Middle” cutoff threshold is set, the cut-off voltage will be: 3.15*3=9.45V.

6. For Ni-xx packs – low / medium / high cutoff voltages are 0%/50%/65% of the startup voltage (i.e. the initial voltage of battery pack), and 0% means the low voltage cut-off function is disabled. For example: For a 6 cells NiMH battery, fully charged voltage is 1.446=8.64V, when “Middle” cut-off threshold is set, the cut-off voltage will be: 8.6450%=4.32V.

7. Soft Acceleration Start up: Normal / Soft / Very Soft
   Normal mode is suitable for fixed-wing aircraft. Soft or Very Soft modes are suitable for helicopters. The initial acceleration of the Soft and Very Soft modes are slower, it takes 1.5 second for Soft startup or 3 seconds for Very Soft startup from initial throttle advance to full throttle. If the throttle is completely closed (throttle stick moved to bottom position) and opened again (throttle stick moved to top position) within 3 seconds after the first startup, the re-startup will be temporarily changed to normal mode to get rid of the chance of a crash caused by slow throttle response. This special design is suitable for aerobatic flight when quick throttle response is needed.

8. Timing setup: Low / Middle / High
   Low (3.75°) – Setting for most 2 pole motors.
   Middle (15°) – setting for motors with 6 or more poles.
   High (26.25°) – setting for motors with 12 or more poles, outrunners
   In most cases, middle or low timing works well for all types of motors. However for high efficiency we recommend the Low timing setting for 2 pole motors (generally, in-runners) and middle timing for 6 poles and above (generally all outrunners). For higher speed, High timing can be set. Some motors require different timing setups therefore we suggest you to follow the manufacturer recommended setup.
   Note: Run your motor on the ground first after making any changes to your motor timing!

PROGRAMMING THE KAVAN ESC WITH YOUR TRANSMITTER

Entering the programming mode

Note: Make sure the throttle channel EPA is set to -100% when the throttle stick is at the bottom and 100% for the top (or the throttle curve 0-100%).

1. Enter program mode
2. Select programmable items
3. Set item’s value (Programmable value)
4. Exit program mode

USING THE KAVAN PROGRAMMING CARD (OPTIONAL)

You can also use the optional KAVAN programming card to program your desired function.
The use of the KAVAN card is very simple and convenient: the programmable function and their values are to be set with a couple of buttons. Simply set all the functions on the card to the valuess corresponding to the desired values and load the settings to the ESC. Programming your ESC with the KAVAN Card is a breeze!

SAFETY PRECAUTIONS

• Do not install the propeller (fixed wing) or drive pinion (helicopter) on the motor when you test the ESC and motor for the first time to verify the correct settings on your radio. Only install your propeller (plane) or pinion (heli) after you have confirmed that the settings on your radio is correct.
• Never use ruptured or punctured battery cells.
• Never use battery packs that are known to overheat.
• Never short circuit battery or motor terminals.
• Always use proper insulation material for cable insulation.
• Always use proper cable connectors.
• Do not exceed the number of cells or servos specified for the ESC.
• Wrong battery polarity will damage the ESC and void the warranty.
• Install the ESC in a suitable location with adequate ventilation for cooling. This ESC has a built-in over temperature cutoff protection feature that will immediately cut power to the motor once the ESC temperature exceeds the 230° F/ 110° C temperature limit.
• Use only batteries that are supported by the ESC and ensure the correct polarity before connecting.
• Switch your transmitter ON first and ensure the throttle stick is in the minimum position before connecting the battery pack.
• Never switch your transmitter OFF while the battery is connected to your ESC.
• Only connect your battery pack just before flying and do not leave your battery pack connected after flying.
• Handle your model with extreme care once the battery pack is connected and keep away from the propeller at all times. Never stand in-line or directly in front of any rotating parts.
• Do not immerse the ESC under water, do not allow it to get wet while powered up.
• Always fly at a designated flying site and follow the rules and guidelines set by your modeller’s club.

Recycling and Waste Disposal Note (European Union)

Electrical equipment marked with the crossed-out waste bin symbol must not be discarded in the domestic waste; it should be disposed off via the appropriate specialised disposal system. In the countries of the EU (European Union) electrical devices must not be discarded via the normal domestic waste system (WEEE – Waste of Electrical and Electronic Equipment, Directive 2012/19/EU). You can take your unwanted equipment to your nearest public collection point or recycling centre, where it will be disposed off in the proper manner at no charge to you. By disposing off your old equipment in a responsible manner you make an important contribution to the safeguarding of the environment!

EU Declaration of Connformity

Hereby, KAVAN Europe s.r.o. declares that the radio equipment type: BETA 1400 with T8FB RC set and the accessories supplied with them is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: www.kavanrc.com/doc/

This 2.4GHz radio equipment can be used without any prior registration or individual authorisation in the entire European Union, Switzerland and Norway.

KAVAN Europe s.r.o.
+420 466 260 133
info@kavanrc.com
Doubravice 110
533 53 Pardubice
Czech Republic

References

• DOC - Prohlášení o shodÄ›

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