MAX-70SZ-HRING

Increase power�with drop-in ease!

O.S. has the answer: the .70 SZ-H. It installs in the same space as a .61, and operates in virtually the same rpm band...so you can upgrade in an instant, and right away enjoy extra muscle for 3D flying and FAI F3C competition.

• Specifically developed to satisfy the performance demands of FAI F3C competition pilots.
  
  
• Throttle assembly reference marks make it easy to note and restore finely tuned settings after maintenance.
  
  
• Additional mounting lug on front of crankcase increases stability during extreme maneuvers.
  
  
• Front and rear ball bearing suppported crankshaft reduces friction and wear.
  
  
• Three-needle carburetor permits exceptionally precise adjustments.
  
  
• Large helicopter cylinder head offers generous cooling fin area�increased webbing on the crankcase front improves heat dissipation even further.