This engine is not toy. For your own safety, please read the manual carefully before operation. DLE is not responsible for all injuries result from the use.

Before every use, check the engine assembly, propeller and airframe carefully for loose screws and nuts. (Loctite242、243) is strongly recommended on all the screws.

During the break-in process, engine must running with shock absorber installed. Or the engine will be seriously damaged by vibration.

Always stand clear of and behind the propeller; never allow anyone including yourself, to be in front of or to the sides of the propeller when starting or running the engine. Anyone near the engine should wear protective eyewear. Do not wear loose clothing near the engine or propeller

SPECIFICATIONS:

Performance:3.7HP/8500rpm

Idle Speed: 1600 rpm/min.

8.5Kg Static Thrust / 100 meters Altitude

7.5Kg Static Thrust / 1800 meters Altitude

The specification of the aircraft propeller:18×8；18×10；19×8；20×8；

the type of the sparking plug ：NGK CM6

 Parameter： 

Exhaust Amount :

30.5cm3

diameter × stroke :

36mm×30mm

Ratio of compression:

7.6：1

Ratio of lubricating capacity :

30: 1

Weight: Main engine:

930g

Exhaust pipe:

100g

Ignition equipment:

140g

Ignition volt：

4.8V-8.4V

 

 

We Promise

1. Offer best quality with lowest price.

2. Reply your email/messages everyday (except weekends and holidays)

3. If there is any damage or not working when it arrived ,send us pictures, will send you replacement or refund.

4. If you can't receive it within the flowing time, please contact for a resend or refund.

Return Policy

We will accept the return of merchandise that was purchased from AIRFORCE-HOBBY within 60 days of receipt of shipment.

Customers must agree to the following in order to ship merchandise back to us:

1) We accept return goods within 60 days after you received the item.

2) Please offer us tracking number if you returned item.

3) Return shipping cost is responsible by buyer.

4) The merchandise MUST BE in unused condition AND in its original packaging (cannot be glued or tampered with in any fashion). 

 

Thank you for your purchase!