GF60i2 Linear double cylinder 4-stroke gasoline engine
Operation instruction manual
Thank you for purchasing NGH products. This product is a four-stroke gasoline engine specially designed by NGH engineers for the model
enthusiasts and the user of UAVs. It has high-rise stability, the output torque , ultralow vibration, sufficient combustion of mixed gas, low fuel
consumption, low noise, high wear resistance, and power to weight ratio greater than 2. The structure is tight and the appearance is exquisite. It
is very suitable for the real aircraft and long-endurance UAV power during World War II, and we hope that this engine will give you a pleasant
and safe flight experience.
Security Warning and Instruction:
Please kindly read this operating manual carefully before operating and maintaining the engine to familiarize you with the performance.
Improper operation may damage the engine and even cause great loss to private property and personal injury.
The engine is a precision product developed and manufactured by NGH. The operator needs to have some common sense of internal
combustion engine and basic mechanical knowledge, and must be cautious in the operation; please do not use any accessories that are not
approved by our company when repairing and maintaining the engine. Please kindly read the manual carefully and follow the instructions in
the manual to ensure use it correctly and avoid danger before assembling, debugging and using the engine.
Age recommendation: RC engines are not toys! Not suitable for the children under 15 years old.
This engine is designed for the radio-controlled model aircraft and long-endurance Uavs. If you use this engine for any other purpose, we are
not responsible for ensuring its stability and safety. When installing engines on RC models, please read the RC model manual carefully. The
RC model manual contains helpful advice when installing engines.
• NGH and its distributors are not responsible for the property damage and the injury caused by negligent use.
• Please keep away from the rotating area of the propeller when operating the engine.
• Do not wear loose clothing when go near the engine or propeller.
• Do not start the engine on the ground of loose materials such as dirt
、
gravel
、
ropes
、
sand
、
etc.
• Operate the engine in a good ventilated environment, as the engine may produce harmful carbon monoxide gas during the operation.
• Make sure that the propeller is firmly fixed to the engine crankshaft before each flight and also make sure that all parts are in place and
fastened.
• When running or debugging the engine, stand on the back of the propeller, and make sure to keep your face and body out of the path which
the propeller blades pass. Do not allow others to stand in front or on the side of the propeller.
• Make sure that small parts are out of the reach of children to prevent children from swallowing.
• Please always check whether the nut fastening the propeller is locked.
• Gasoline is flammable. Be careful of sparks which come into contact with the engine (eg fire stars, battery chargers, etc.) causing fires.
• Stop and cool the engine before touching or refueling it. The surface of the running engine is hot enough to cause burns and other injuries.
• Before flying, be sure to check for loose bolts. When installing the muffler, screw the muffler into the thread of the engine exhaust until it
stops, it is recommended to use screw glue.
• Make sure the engine and muffler have cold air passing through the aircraft fairing environment to ensure engine cooling.
The product specifications：
Type：Linear double cylinder 4-stroke air-cooled gasoline engine （Only For fixed-wing aircraft models and long-endurance UAV ）
The dimensions：59.82cc（2 x 29.91cc）
The maximum power：5.1 HP/8000rpm
Range of the speeds：1200-7500rpm
Igniter：NGH Automatic Angle LV igniter (RoHS & CE authentication)
Igniter power supply：DC 4.8V - 8.4V 1000mAH
Fuel: 92# unlead gasoline + Fully synthetic 2T lubricants
Lubricating ratio: Gasoline：Lubricating = 35:1
Fuel consumption：22ml/min（Experimental conditions：22x10 Beech propeller，5400rpm）
Recommended propeller：22x8-10、23×8-10（two leaf blades）
Weight：Engine 2910g、Igniter 200g
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