The radioracing engine Cyclon-40PR
The specification:
- The engine fully complies with rules FAI F3D
- 3.1 BHP for 30000 RPM
- volume 6.53 cc
- bore 21.5 mm
- stroke 18 mm
- rear intake, disk valve
- front ballbearing 8 x 19 mm
- crank rear bearing 12 x 28 mm
- crankpin 6 x 6 mm chromed
- wrist pin 5 mm diameter
- piston/liner ABC three fuel ports
- liner timing 130o x 190o
- valve timing 20o x 70o
- glow plug type - Nelson or Novarossi Turbo glow plug No.7
- spinners 1.5" or 2"
- weigt 330 g about
- mount - Nelson type normal
- propeller type - 2 blades carbon 175 x 175 mm