For over-the-top flying excitement, the O.S. .50 SX-H Ringed Hyper engine is the clear favorite! Features: The Hyper version weighs less than the .50 SX-H, but delivers more horsepower for higher rotor speeds.

Blue Alumite heatsink head increases cooling capacity. Newly designed combustion chamber shape offers stable output both at hovering and high speed. The 60LH caburetor has a big 10mm bore which contributes the power increase.

The 50SX-H Ringed Hyper is ideal for 50-class helis, with improved combustion efficiency for super-stable hovering and aerobatics. For over-the-top flying excitement, the 50SX-H Ringed Hyper engine is the clear favorite!

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The 50SX-H combines balance with usability in any 50 class helicopter. This popular engine is now offered with even more power. The cooling efficiency has been improved using a new blue anodized heat sink head.

Do you have a question about the MAX-50SX Ring and is the answer not in the manual? CONTENTS STARTING 17-18 SAFETY INSTRUCTIONS AND WARNINGS ABOUT YOUR O.S. ENGINE RUNNING-IN (Breaking-in) 19-21 FEATURES OF FX SERIES ENGINES, BEFORE IDLING ADJUSTMENT CHART INSTALLING THE ENGINE...

This is the O.S. Max .50 SX-H Ring Hyper Helicopter Engine with Hyper Cooling Head and 60LH Carburetor. Ideal for use in any 50 class helicopter, the new head design offers improved combustion efficiency for stable hovering and aerobatic flight and the large 0.39" (10mm) diameter carburetor intake provides for greater running stability.

This is the O.S. Max .50 SX-H Ring Hyper Helicopter Engine with Hyper Cooling Head and 60LH Carburetor.

For 50 class helicopters. Includes ・No.8 plug・Head gasket 0.1mm x 1・Head gasket 0.2mm x 1・Check valve Spec