O.S. 50 SX-H Hyper Ringed Competition Helicopter Engine

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O.S. 50 SX-H Hyper Ringed Competition Helicopter Engine
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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

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.
  • Actually mounts in the same space as a .30-size application.
  • The 60LH carburetor features 1.5 mm more bore, to increase overall power.
Specifications:
  • Displacement: 0.499 cu in (8.17 cc)
  • Bore: 0.866 in (22 mm)
  • Stroke: 0.847 in (21.5 mm)
  • Practical rpm range: 2,000-20,000
  • Output: 1.9 hp @ 17,000 rpm
  • Weight: 14.3 oz (406 g)
  • Includes: 60LH carburetor, #8 glow plug

This product was added to our catalog on November 3, 2006

Verified Owner
Sunday, Dec 20 2020 (about 2 years ago)
O.S. 50 SX-H Hyper Ringed Competition Helicopter Engine
I have been running this engine in a Hirobo SDX and so far have put 40 litres of fuel through it. Provides good power on 20% Cool Power Red and 10% nitro. Very reliable when run on the rich side of max power. Has helped me get lots of stick time so has improved my flying a lot.I brought another one just for spares. Will try the 55hz next. I recommend this engine for sure.
Thursday, Nov 16 2017 (about 5 years ago)
O.S. 50 SX-H Hyper Ringed Competition Helicopter Engine
Great Engine I have been running this on my 600 since 2005.