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UMS 7-77cc Glow 7 Cylinder Radial 4 Stroke Engine

Manufacturer: UMS
Special Order
Special Price £1,091.66 £909.72 Regular Price £1,149.12
SKU
UMS7-77

The UMS 7-77 is a very reliable radial engines which uses glow fuel. UMS has a ton of experience building radial engines. It has brought more than 2000 engines to market so far. The design and construction are upper class leading to a outstanding realibility of these engines. They are easily servicebale. All critical parts are easily accesisble.

KEY FEATURES

  • 7-cylinder radial configuration—absolutely stunning looks and realism
  • 4-stroke
  • Midsize 77cc displacement
  • Comes complete with exhaust collector ring —one-box purchase for a ready-to-mount-and-run engine
  • User-friendly choke and throttle bellcranks included—makes installation and operation easy
  • Made from aluminum or bar stock where appropriate and CNC-machined—accurate and repeatable specifications each and every time
  • Cylinder head and crankcases produced from aircraft grade alloys
  • Heavy-duty double bearing crankshaft
  • Billet aluminum pistons and hardened steel rings
  • Hard-chromed and lapped cylinder bores
  • Hardened steel cams
  • Burns glow fuel

SPECIFICATION

Bore 0.93 in (23.7mm)
Crankshaft Threads 10 x 1mm
Cylinder Type Ringed
Cylinders Radial
Engine Diameter 9.1 in (23 cm)
Displacement 4.70 cu. in. (77 cc)
Stroke 0.98 in (25.0mm),0.98 in (25.0mm)
Total Weight 5.7 lb (2.6 kg),5.7 lb (2.6 kg)
Mounting Dimensions Diameter 9.1 in (23.0 cm), Length 7.9 in (20.0cm)
Prop Range 2-blade 22 x 12, 24 x 10; 3-blade 22 x 10
Power 4.8 hp (approximate),4.8 hp (approximate)
Thrust 8.5 kg
Recommended Fuel 0–10% nitro, 9% oil for break-in and for normal operations

   
More Information
Manufacturer UMS
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