DLE-20

Output Power: 2.5 HP at 9,000RPM
Idle Speed: 1,700RPM
Static Thrust: 6.3kg 100m altitude 5.6kg1800m altitude
Displacement: 20cc
Bore and Stroke: 32 x 25mm
Compression Ratio: 10.5:1
Weight, Engine Only: 660g
Exhaust: 80g
Ignition: 130g
Fuel Mixture: 30:1
Fuel Octane Level: 93
Propeller Range: 14x10, 15x8, 16x6, 17x6
Ignition Battery: 4.8 - 7.4V
Replacement Spark Plug:  CM6
Carburetor Settings:
Low Speed Needle: 1.5 turns out, adjust until engine idles smooth
and transitions to a high speed without dying or flooding
High Speed Needle: 1.5 turns out, adjust to peak RPM