OMPHOBBY M4 MAX Omp Heli Kit Instruction Manual
- June 17, 2024
- OMPHOBBY
Table of Contents
INSTRUCTION MANUAL
revision 0
M4 MAX Omp Heli
Kit
Thank you for choosing OMPHOBBY products.The M4 MAX is the latest technology in rotary wing RC models, designed in Germany by JonasWackershauser. Please read this assembly manual carefully beforeassembling and flying your new M4 Max helicopter. We recommend thatyou keep this manual for future reference.
INTRODUCTION
Thank you for choosing OMPHOBBY products. The M4 MAX Helicopter is designed as
an easy to use, fully featured Helicopter R/C model capable ofall styles of
rotary flight. Please read this manual carefully before operating the model
and follow all precautions, limitations and recommendations inthe manual. Be
sure to retain the manual for future reference, routine maintenance, and
tuning.
The M4 MAX is a new product developed by OMPHOBBY. lt features the best design
available on the Mini-Heli market to date, providing high flightstability for
beginners, full aerobatic capability with virtually unlimited control power
for advanced pilots, as well as unsurpassed reliability for all customers.
WARNING LABEL LEGEND
WARNING| Mishandling of the helicopter and failure to follow these
instructions may result in damage, injury or death.
---|---
CAUTION| Mishandling due to failure to follow these instructions may
result in danger.
FORBIDDEN| Do not attempt under any circumstances
IMPORTANT NOTES
R/C helicopters, including the OMPHOBBY M4 MAX , are not toys. R/C helicopters
utilize various high-tech components and technologies to providesuperior
flight performance. lmproper use of this product can result in damage to
property, serious injury or even death. Please read this manual
carefullybefore using and make sure to be conscious of your own personal
safety, the safety of others and your environment when operating OMPHOBBY
products.Manufacturer and seller assume no liability for the operation or the
use of this product. The OMPHOBBY M4 MAX is intended for use only by adults
withexperience flying remote control helicopters at a legal flying field.
After the sale of this product, OMPHOBBY cannot maintain any control over its
operationor usage.
RC Helicopters require skill to operate. We recommend that inexperienced
pilots obtain the assistance of an experienced pilot before attempting to
flyour products for the first time. Local expert assistance is the best way to
assure proper assembly, setup, and safe flight of your model.Any damage or
dissatisfaction as a result of crashes, incorrect setup, modifications or lack
of necessary user skill are not covered by any warrantyand cannot be returned
for repair or replacement.Please contact our distributors for technical
support and parts supply if you experience problems.
SAFETY NOTES
CAUTION
Fly only in safe areas, at a safe distance from other people. Do not
operate R/C aircraft within the vicinity of homes or crowds of people. R/C
aircraft maysuffer accidents, failures,and crashes due to a variety of reasons
including, but not limited to: Lack of maintenance, pilot error and radio
interference. Pilotsare responsible for their actions, as well as damage or
injury occurring during the operation of their R/C aircraft models.
Precautions before use
FORBIDDEN
LOCATE AN APPROPRIATE LOCATION
To ensure the safety of yourself, others and your model, do not fly near
airports, buildings, roads, crowded areas or high voltage cables.
R/C helicopters can fly at high speed and have rotor blades spinning at high
RPM, thus posing a certain degree of potential danger duringoperation. Choose
a legal and safe flying field consisting of flat, smooth ground without
obstacles, other people, animals etc.
For the first flights, please choose a legal flying field with ample clear
space. Flying over long grass reduces damage in the event of a crash.Consider
the use of a training landing gear. Do not fly your model in inclement
weather, such as rain, wind, snow or darkness. FORBIDDEN
PREVENT MOISTURE
R/C models are composed of many precision mechanical and electrical
components.
It is critical to keep the model and associated equipment away from moisture
and other contaminants.The introduction or exposure to water or moisturein any
form can cause the model to malfunction, resulting in loss of control or a
crash. Do not operate or expose the model to rain or moisture. FORBIDDEN
MALOPERATION
Please use only genuine replacement parts listed in the manual to ensure
correct operation. Use of non-standard or damaged parts voids theproduct
warranty and may cause danger. This product is designed for leisure R/C
modelling, do not use the model for other purposes. WARNING
OBTAIN THE ASSISTANCE OF AN EXPERIENCED PILOT
Before turning on your model and transmitter, check with other RC model users
in the area that it is safe to fly.
For inexperienced pilots, the guidance provided by an experienced pilot can be
invaluable for the assembly, setup, tuning, trimming and firstflight. (It is
recommend to practice with computer-based flight simulator beforehand.)
WARNING
SAFE OPERATION
Operate this helicopter within your ability. Do not fly under the influence of
perception-altering substances, as well as when you’re sleep deprived. Itmay
result in danger or injury. CAUTION
During the operation of the helicopter, the main rotor and tail rotor will be
spinning at very high rotation speeds. Rotor blades are capable ofinflicting
serious to lethal bodily injury and damage to the environment. Be conscious of
the hazards posed by the spinning rotor blades andmaintain safe distance from
the helicopter at all times.Always fly the model a safe distance from yourself
and others,as well as your surroundings. Never take your eyes off the model or
leave itunattended while it is turned on. Immediately turn off the model and
transmitter and remove battery after you have landed the model. CAUTION
KEEP AWAY FROM HEAT
R/C models are made of various forms of plastics. Plastic is very susceptible
to damage or deformation due to extreme heat and cold. Make sure not tostore
the model near any source of heat, such as direct, strong sunlight or a
heater. It is best to store the model indoors, in a climate-controlled,room-
temperature environment.
Self-provided tools
When you see
the marks as below, please use glue or grease to ensure flying
safety.
Specifications
- Length：830mm
- Height：226mmMain
- Blade：420mm
- Main Rotor Diameter：945mm
- Tail Rotor Diameter：190mm
- Flying Weight：1500g
Features
- Large pitch range main rotor design for extreme control power in any situation
- Highly compact flight mechanics design
- Lightweight carbon fiber and aluminium airframe design
- Streamlined low wind resistance canopy design
- Frame mounted XT60 connector for easy battery connection
- Open frame design for easy wiring and serviceability
Installation steps
Partially pre-assembled parts are loosely screwed together without thread
locker/glueRecommendation: Loctite 243 for screws, Loctite 648 for bearing
seats.
1-2 Servo
Rack Assembly
3-1 Tail Thrust Component Installation
3-2 Tail rotor
assembly
Operation settings
Collective pitch and rotor speed recommendations
| Flying Style | Recommended RPM Range | Recommended Collective Pitch Range |
|---|---|---|
| Hovering | 1400-1800RPM | -5°+12° |
| Low RPM 3D | 1500-1900RPM | ±16° |
| Sport | 1600-1900RPM | ±13° |
| Aerobatics | 2000-2300RPM | ±13° |
| Soft 3D | 2300-2600RPM | ±13° |
| Hard 3D | 2600-2850RPM | ±13° |
| Tareq Alsaadi | 3000RPM | ±12° |
- Maximum Rotor Speed: 3000RPM
- Maximum Collective Pitch below 1900RPM: ±16°
- Maximum Collective Pitch below 2850RPM: ±13°
- Maximum Collective Pitch above 2850RPM: ±12°
- Recommended Rotor Blades: RotorTech 420mm Ultimate, OMPHOBBY APEX 420mm.
Spare parts Pack
| Model| Quantity
---|---|---
Screw| Socket cap screw M2x4mm| 2
Socket cap screw M2.5x5mm| 2
Socket cap screw M2.5x6mm| 2
Socket cap screw M2.5x8mm| 1
Socket cap screw M2.5x1Omm| 1
Countersunk head hexagon socket screw M2x3mm| 2
Countersunk head hexagon socket screw M2.5x5mm| 2
Washers| Washers Φ2xΦ4.3×0.5mm| 2
Washers Φ2xΦ8×0.2mm| 2
Washers Φ3xΦ4.5×0.2mm| 4
Washers Φ5xΦ6×0.5mm| 2
Washers Φ2xΦ3.2×0.5mm| 2
Washers Φ8.05xΦ10×0.2mm| 3
Motor specifications
Servo & Motor Spec
OMPHOBBY M4 Micro Tail Servo
Model| 2312T| Operating Voltage:| 4L 8V-8. 4V
Working pulse length:| 500-1000us| Max Freq:| PWM max. 560Hz
Connector:| 3P Dupont| Wire length:| 220mm
Servo Arm:| 25T| Operation Angle:| 140 Deg
Item:| Spec
Operating Voltage:| 7.4V
Dead Band:| 2u
Stall Current| 1.7A
Operating Speed(no load):| 0.053sec/60°
Torque:| 3.5kg.cm
Stall Torque:| 7kg.cm
Weight| 21g
OMPHOBBY M4 Max Micro cyclic Servo
Model| 2312C| Operating Voltage:| 4. 8V-8. 4V
Working pulse length:| 800-2200us| Max Freq:| PWM max.333Hz
Connector:| 3P Dupont| Wire length:| 220mm
Servo Arm:| 25T| Operation Angle:| 140 Deg
Item:| Spec
Operating Voltage:| 7.4V
Dead Band:| 2u
Stall Current| 1.7A
Operating Speed(no load):| 0.073sec/60°
Torque:| 4 9kg.cm
Stall Torque :| 9kg.cm
OMPHOBBY M4 Max Mini Tail Servo
Model| 3515T| Operating Voltage:| 4. 8V-8. 4V
Working pulse length:| 500-1000us| Max Freq:| PWM max.560Hz
Connector:| 3P Dupont| Wire length:| 220mm
Servo Arm:| 5mm 25T| Operation Angle:| 140 Deg
Item:| Spec
Operating Voltage:| 7.4V
Dead Band:| 2u
Stall Current| 3.4A
Operating Speed(no load):| 0.051sec/60°
Torque:| 4.5kg.cm
Stall Torque:| 9.5kg.cm
Weight| 43g
ESC 85A Specification
| Continuous/Peak current | 85A/120A |
|---|---|
| Input voltage | 3-6S Lipo HV |
| BEC | 6V/7.4V/8.4V, 10A |
| Input/output wire | Black & Red 12AWG Silicon wire / Black 14AWG Silicon wire. |
| Size/Weight | 67x33x20mm / 66g |
Wire Connections
- Throttle signal/BEC output wire (Black, Red, White): Plugs into the receiverthrottle channel. The white wire carries the throttle signal, the red wire andblack wire carry the BEC voltage and ground.
- RPM signal wire (Yellow): Plug into the RPM input port. (If applicable)
Throttle calibration procedure
(Important:Please make the throttle calibration for the first time using
ESC!!!)
Accessories package
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