- Two sealed bearings on crankshaft-simple design for lighter weight
- Aluminum alloy crankcase
- Rear mounted pumper carburetor ensures easier installation and smooth
- idling and dependable fuel flow during flights
- Fully automatic electronic ignition
Engine, spark plug, four standoffs, ignition, muffler, muffler
gasket, two 5x20mm muffler bolts, four 5x60mm mounting bolts
instruction manualÂ
Gasoline with at least 87 octane rating
2-cycle oil, mix ratio for this engine is 30 parts gas to one part
oil and must be followed exactly for warranty consideration
and optimum performance
4.8 - 6V NiMH/NiCd, or 6.6V LiFe or 7.4V LiPo battery for ignition
(separate receiver style pack can be used) (LiPo & LiFe requires
voltage regulator)
Propeller, 1/8" gasoline tubing, and field equipment
Output Power: 3.7 HP at 8,500 RPM
Idle Speed: 1,600 RPM
RPM Range: 1,600-8,500
Static Thrust: 8.5kg Pulling Force/100 meters altitude
7.5kg Pulling Force/1,800 meters altitude
Displacement: 1.86cu in (30.5cc)
Bore: 1.42" (36mm)
Stroke: 1.18" (30mm)
Compression Ratio: 7.6:1
Crankshaft Thread: 5mm
Weight: Engine, 2lbs (910g)
Muffler, 2.1oz (60g)
Ignition, 4.2oz (120g)
Gasoline/Oil Mixture: 30:1
Gasoline Octane Rating: 87
Recommended Propellers: 18x8 for break-in, 18x10, 19x8, 20x8
Spark Plug: CM6
Carburetor Adjustments;
Low Speed Needle: 1.5 turns out as a starting point, adjust for a
smooth idle and a reliable transition to high throttle
High Speed Needle: 1.5-2 turns out from closed, adjust needle to peak
RPM, if engine slows or dies at full throttle, the high-speed
mixture is likely too lean
Distance Between Mounting Hole Centers Same Side: 2.1" (54mm)
Distance Between Mounting Hole Centers Opposite Side: 2.7" (70mm)
Height from bottom/Crankcase to top of Cylinder Head: 5.4" (138mm)
Width of Cylinder Head: 2.5" (65mm)
Distance Between Muffler Mounting Hole Centers: 1.3" (34mm)Â
To avoid permanent damage to the electronic ignition system, NEVER
turn your DLE engine over with the system switched on and the plug
not installed.
