This question has been cropping up in my mind for a long time what why are 2 stroke (2C) engines more powerful than 4 stroke (4C) engines? What makes them more powerful? and if a 40 size trainer needs .46 2C engine you can use a .60 4C engine on it as well and I have seen 2C engines fly the planes much faster than 4C engines and aso the difference in weight, in sound, fuel efficiency and maintenance. I never used any 4C engine, so I don't have much idea about them but seen them being flown, they are kinda slow comparing 2C. I know 2C engine needs one cycle to complete a stroke where 4C engine needs 2. Pls clarify me and give your precious opinions and experiences.


Super Tigre
G-61 Ring

Type: 2-Stroke
Displacement: 0.610 cu. in.
Cylinders: 1
Low RPM: 2500
High RPM: 16500
HP: 1.750 bhp@16000 RPM
Weight: 19.96 oz.

Magnum
XL-61 RFS

Type: 4-Stroke
Displacement: 0.610 cu. in.
Cylinders: 1
Low RPM: 2000
High RPM: 12000
Weight: 15.50 oz.

Thanks in advance

Have safe flying

Mody