User Manual

9
Propeller Chart
Engine Specifications
This chart enables you to select the best propeller for the initial setup of your
Zenoah engine. Remember, it’s imperative to balance each propeller prior to
installation onto your Zenoah engine. Failure to do so may cause unwanted
vibration in your aircraft.
All recommendations are based on engines using APC brand props.
Engine Propeller
G26A 16 x 8 @ 8,700
G231 Heli
G26 Heli
Adjust pitch of rotor to obtain 9,000–
10,000 rpm of the engine at full throttle
G26 Marine
G231 Marine
Diameter = 65–75mm
Pitch Ratio 1.4–1.9mm
G38 Gas 18 x 10 @ 7,300
G45 Gas 20 x 10 @ 7,200
G62 Gas 22 x 10 @ 7,200
GT80 Gas 22 x 12 @ 7,2000; 24 x 10 @ 7,200
Outside Dimensions (mm)
Item Length Width Height
Operating
RPM
Optional
Mufflers
G26A 139 105 181 2,000–10,000 BIS07123
G26M 139 105 181 2,000–10,000 —
G26H 139 105 181 2,000–10,000 —
G231 Heli 142 105 181 3,000–11,000 —
G231 Marine 142 105 181 3,500–15,000 —
G38 170 130 215 2,000–9,000 BIS07138
G45 152 130 185 2,000–10,000 BIS07145
G62 162.5 140 185 2,000–10,000 BIS07163
GT80 191.5 257 190 1,800–10,000 BIS07445/6
Specifications
Displacement (cu in) Bore (in) Stroke (in) Weight (oz) K (ISO) HP (H/M) Carb (Walbro)
G26A/M/H 1.55 1.41 1.1 54/57 M8 x 1.25/6 x 1 2.4 WT645/644/677
G231M/H 1.4 1.3 1.1 54 M8 x 1.25 2.2 WT644/643
G38 2.3 1.5 1.3 67 M10 x 1.25 2.2 WT338/WTA-6A
G45 2.74 1.69 1.22 74 8 x 1 3.3 HDA-48D
G62 3.8 1.9 1.4 73 10 x 1 4.75 HDA-48D
GT80 4.8 1.60 1.22 126 10 x 1.25 6 WJ-64
*with spring starter