Model engine classes


In the world of model aircraft there are several competition classes to signify engine displacement.
ClassCubic InchesCubic Centimeters
1/2A0.000 - 0.0500.000 - 0.819
A0.051 - 0.15250.835 - 2.499
B0.1526 - 0.3002.500 - 4.916
C0.301 - 0.6504.932 - 10.65
FAImax 1.526max 25
Jet