OS Speed 91HZ-R 3D Engine : 18642

The biggest, pure helicopter engine that OS have ever made delivers the levels of torque and power demanded by top fliers for both F3C and sport applications.The 15% increase in...

O.S. MAX 105HZ-R Helicopter Engine : 18750The biggest, pure helicopter engine that OS have ever made delivers the levels of torque and power demanded by top fliers for both '3D'...

The max 50SX-H Hyper has established an enviable reputation for power, reliability and ease of use. The Max 55HZ Hyper moves that to a whole new level!, Designed primarily with...

The latest engine in the 600/50 helicopter class borrows much of its technology from the fabulous Max 91HZ-R, to provide class leading power under the most demanding of 3D manoeuvres.The...

Robbe Engine Set 1.8M ST 90 : S-2907

Robbe Motorset ECO 60 : S-8004