This is the 105HZ 1.05 cu in helicopter engine from O.S. Engines. These are the engines that precision aerobatic and 3D heli pilots have been waiting for! In order for 90-sized machines to nail huge maneuvers and hardcore, smackdown-style 3D it's all about power, and both the 105HZ and 105HZ-R have it in abundance. Displacement has been increased by 15%, while a huge venturi rams air into the carburetor, producing massive power. Plus, they fit in a .90-sized mounting pattern.

Features:

• Same mounting dimensions as a .90 cu in engine
• Machined blue anodized aluminum heatsink cylinder head
• Velocity stack increases airflow and enhances engine performance
• Backplate accepts the Futaba BPS-1 RPM sensor for the GY701 and CGY750 gyros
• Ideal bore and stroke ratio for lowest vibration

Includes:

1. 105HZ 1.05 cu in Helicopter Engine with 61E Carburetor
2. #8 Glow Plug
3. Air Funnel
4. 0.1mm Head Gasket
5. 0.2mm Head Gasket (installed)
6. Instruction Manual

Requires: Heli blend fuel with 15% nitro content and glow starter and field equipment