Freewing model B-2 Spirit Bomber User Manual

Freewing Twin 70mm
B-2 Spirit Bomber
User Manual
Wingspan: 2200mm
Length: 886mm
Empty Weight: 3200G [w/o Battery]

Safety Notices

1. This is not a toy! This B-2 is a highly advanced flying model aircraft and requires intermediate to advanced piloting skills. Beginners must assemble, configure, program, and operate under the guidance of proficient pilots.
2. Before installation, please read through these instructions carefully and operate strictly under instructions.
3. Due to the nature of RC Aircraft, Freewing and its vendors will not be held responsible for any losses.
4. The minimum recommended age for pilots with intermediate to advanced piloting skills is 16 years old.
5. This plane used EPO material with surface spray paint. Avoid all contact with chemicals and solvents.
6. Avoid flying in areas such as public places, high-voltage-intensive areas, near the highway, near the airport or any other place where laws and regulation clearly prohibit RC model flying.
7. Do not fly in bad weather conditions such as thunderstorms, rain, snow, or extreme high or low temperatures.
8. Always inspect the model before flight. Ensure the flight battery is fully charged and in safe working condition.
9. Discard the flight battery properly if it is damaged or defective.
10. Always ensure the radio transmitter is turned on before and whenever the flight battery is plugged in.
11. Do not attempt taking off from or landing onto unsafe surfaces. Avoid uneven surfaces, tall grass, and gravel.

NOTE: This is not a toy. Not for children under 14 years. Young people under the age of 14 should only be permitted to operate this model under the instruction and supervision of an adult. Please keep these instructions for further reference after completing model assembly.

Basic Product Information

Note The parameters In here are derived from test result using our accessories [fuse other accessories, the test result will be different. Any problem since of using other
accessories, we are not able to provide technical support

Standard Version
Wingload：48.2 g/dm 2 .
Wing Area: 83 dm 2
Motor: 2952-2100KV I/R Motor
Servo: 9g MG digital servo (2pcs) 9g Hybrid digital servo (7pcs)
ESC: 60A with 8A UBEC
Ducted fan: 70mm 12-blade fan
Weight: 3200g (w/o Battery)

Other features
Material：EPO
Aileron: Yes Elevator: Yes
Rudder: Yes
Landing gear: Retract Landing Gear
Cabin door:Yes
Scale Pilot figure:Yes
Li-Po Battery: 6S 4000-6000mAh (1pcs)

Package List

Different equipment include different spareparts. Please refer to the following contents to check your sparepart list.

PNP Assembly Instructions

PNP Assembly Instructions

Install Vertical stabilizer
(This step is an optional step that can be installed or not)
As the photo shows

1. With a hobby knife, score the molded line down to a depth of 10mm.
2. Use EPO-safe glue to fix the clear plastic vertical stabilizer onto the fuselage tail.

Install Battery

Before connecting the battery and receiver, please switch on the transmitter power and make sure the throttle stick is in the lowest position. Bind your receiver to your transmitter according to your
transmitter’s instruction manual.| We recommend the following LiPo battery: Discharge rate of C 6S 22.2V 4000mAh~6S 22.2V 6000mAh > 35C

Pushrod instructions

Important additional notes

The Y-type clevis used in this product is equipped with a transparent silicone ring for secondary reinforcement, which can effectively prevent the clevis from accidentally loosening. As shown in the following figure, when you buckle the clevis into the control surface horn, use the silicone ring to cover the clevis.

Center of Gravity

Correct Center of Gravity (”CG”) is critical for enabling safe aircraft stability and responsive control. Please refer to the following CG diagram to adjust your aircraft’s Center of Gravity.
– Depending on the weight of your chosen flight battery, move the battery forward or backward to adjust the Center of Gravity.
– If you cannot obtain the recommended CG by moving the battery to a suitable location, you can also install a counterweight to achieve correct CG. However, with the recommended battery, a counterweight is not required. We recommend flying without unnecessary counterweight.
As the photo shows, the recommended starting CG position has been molded into the bottom of the fuselage. Please confirm the CG based on this marked position.

Control Direction Test

After assembling the aircraft, it is critical to verify that all control surfaces move in the correct direction corresponding with the inputs you give from your radio transmitter. Power on your radio and then the model, toggle Throttle Hold, then proceed to verify all control inputs and movements are correct.

Aileron

Rudder

Elevator

Rudder center position

Dual Rates

According to our testing experience, use the following parameters to set Aileron/Elevator Rate. Program your preferred Exponential % in your radio transmitter. We recommend using High Rate for the first flight, and switching to Low Rate if you desire a lower sensitivity. On successive flights, adjust the Rates and Expo to suit your preference.![Freewing model B 2 Spirit Bomber

• transmitter.](https://manuals.plus/wp-content/uploads/2022/05/Freewing- model-B-2-Spirit-Bomber-transmitter.-550x350.png)

| Aileron
(Measured closest to the fuselage)| Elevator
(Measured closest to the fuselage)| Rudder (Measured from the bottom)
---|---|---|---
Low Rate| H1/H2   19mm/19mm D/R Rate：100%| H1/H2   35mm/35mm D/R Rate：100%|
High Rate| H1/H2   19mm/19mm D/R Rate：100%| H1/H2   35mm/35mm D/R Rate：100%| H1 Maximum opening size 102mm D/R Rate：100%

Important Flight Notes:

1. Do not hit the rudder abruptly during high-speed taxiing, otherwise this jet may roll over;

2. We recommend 2-3mm of UP Elevator trim while stationary. Program this before your first flight and refine its position to suit your flying preferences.
   

3. The Freewing B-2 uses the Freewing E52 Gyro to fly

4. The integrated control box mixes both the delta wing function and the aileron mix. Set your radio to
   NORMAL WING mode. Do not set your radio to a delta wing mix, which will confuse the onboard control box.

Servo Direction

If you need to purchase another brand’s servo, please refer to the following list to choose a suitable servo.

Position| Servo regulation| No.| Pos. / Rev.| Cable length
---|---|---|---|---
Nose gear steering servo| 9g Digital-Hybrid| 1| Reverse| 300mm
Rear cabin door(L)| 9g Digital-Hybrid| 2| Reverse| 100mm
Rear cabin door(R)| 9g Digital-Hybrid| 3| Positive| 100mm
Aileron(L)| 9g Digital-Hybrid| 4| Positive| 200mm
Aileron(R)| 9g Digital-Hybrid| 5| Positive| 200mm
Rudder(L)| 9g Digital-MG| 6| Positive| 400mm
Rudder(R)| 9g Digital-MG| 7| Positive| 400mm
Elevator(L)| 9g Digital-Hybrid| 8| Positive| 100mm
Elevator(R)| 9g Digital-Hybrid| 9| Positive| 100mm

Motor Specification

Item N o .| Motor size| Motor(K V)| Th ru st ( g )| Current ( A )| Use voltage ( V )| U se ESC ( A )| EDF Weight ( g )| Max p ower

( W )

| Effi ci en cy ( g / w )
---|---|---|---|---|---|---|---|---|---
E7219| 2952-2100KV| 2100KV| 2100-2200| 50-55| 22.2（6S）| 60| 230| 1170| 1.83

Pre-lnstalled Component Overview

Jet adjustment instruction

1. The pre-installed integrated control box mixes both the delta wing function and the aileron mix. Set your radio to NORMAL WING mode. Do not set your radio to a delta wing mix, which will confuse the onboard control box.
   

2. If the direction of Elevator 1 and Elevator 2 is incorrect when the customer uses it, please exchange the position of the two ELE plugs on the control box, as shown in the following:

3. If the direction of Aileron 1 and Aileron 2 is incorrect when the customer uses it, please exchange the position of the two AIL plugs on the control box, as shown in the following:

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Dongguan Freewing Electronic Technology Ltd
HK Freewing Model International Limited
Add.:FeiYi Building,face to Labor Bureau, Fumin Middle Road, Dalang Town,
Dongguan City , Guangdong Province, China
Web:http://www.sz-freewing.com
Email:[email protected]
Tel: 86-769-82669669
Fax.86-769-82033233
Web: http://www.sz-freewing.com
Email:[email protected]
Tel: 86-769-82669669
Fax:86-769-82033233

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