Desert Aircraft Engines
Desert Aircraft Engines DA-50R , DA-100 and DA-120
When it comes to gasoline engines Desert Aircraft is probably one of the best known manufacturers. I've had the DA-50R and now own DA-100. Both engines are very powerful. My DA-50R was swinging a 23x8 carbon fiber Mejzlik prop at nearly 7000 rpm. I had it installed in my 27% Extra 260 which was lost in the mid air crash. Fortunately there was no damage done to the engine. I preferred a larger prop, but if you do a lot of 3D type flying 22x8 would probably be a better choice, as it will allow the engine to spool up faster. My DA-100 spins 27x10 Bolly wooden prop..... After the brake in period I now mix my fuel using 40:1 ratio and use Red Line 2-cycle Synthetic Racing oil for all my gasoline engines.
Shown is Majzlik CF prop
Desert Aircraft has released a new engine - the DA-120 which is supposed to be an upgrade and direct replacement for the 100 - it is lighter than the 100, has the same mounting pattern and size and spins props 500 to 600 rmp faster. I am going to install one in my Comp-Arf Extra 300L - it should be a very good match for this plane.
DA-50R
DA-50R - probably one of the most popular 50cc gasoline engines used in model airplanes
DA-100
Specifications for DA-100
Displacement: 6.10 ci (100 cc)
Output: 9.8 hp
Weight: 5.57 lbs (2.53 kilos)
Bore: 1.6771 in (42.6 mm)
Stroke: 1.3779 in (35 mm)
Length: 6.5 in (162.5 mm)
RPM Max: 8,500
Fuel Consumption: 2.5 oz/min @ 6,000 RPM
Specifications for DA-50R
Displacement: 3.05 ci (50 cc)
Output: 5.0 hp
Weight: 2.94 lbs (1.33 kilos)
Weight w/Standoffs: 3.13 lbs (1.42 kilos)
Bore: 1.6771 in (42.6 mm)
Stroke: 1.3779 in (35 mm)
DA-50R in Great Planes Yak 54
DA-120
Specifications for DA-120
Displacement: 7.4 ci (121 cc)
Output: hp
Weight: 4.95 lbs (2.25 kilos)
Bore: in ( mm)
Stroke: in ( mm)
Length: 6.25 in (159 mm)
RPM Max:
Fuel Consumption:
Warranty: Three year
