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UMS 7-50cc Gas – 7 Cylinder Radial 4 Stroke Engine ( ETA August 2022 )

$2,125.00

The UMS 7-50 is a very reliable radial engines which uses gas as 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 accessible.

3 in stock

SKU: UMS7-50 Category:

The UMS 7-50 is a very reliable radial engines which uses gas as 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 accessible.

  • 7 cylinder radial configuration absolutely stunning looks and realism
  • 50cc displacement perfect for scale project
  • Comes complete with exhaust collector ring,spark plugs,electronic ignition, and engine mount ready to run
  • User-friendly choke and throttle bell cranks 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 87-110 octane gasoline with 32:1 gas/oil mixture

Specifications

UMS Gas Radial Engine Manual 7-50

UMS 7-50cc Gas - 7 Cylinder Radial 4 Stroke Engine

 

Standard Metric
Type 4-Stroke Petrol SPARK IGNITION
CYLINDER 7 (ABC TYPE) 7 (ABC TYPE)
CAPACITY (CU. IN) 3 50CC
Bore 0.79″ 20.2MM
Stroke 0.86″ 22MM
Thrust* 11lbf @ 20×8 Menz prop. 5kgf @ 20×8 Menz prop.
Power (HP) 3.3 3.3
Rotation (RPM) 1000 – 6300 1000 – 6300
Weight 3.7lbs 1.7kg incl.(silencer )
Engine Diameter 7.3″ 185MM
Engine Length 5.7″ 145MM
Propeller** 17×10, 18×12, 20×8 17×10, 18×12, 20×8
Muffler Type Collector Ring Collector Ring
Plug Type 1/4-32 RcExl 1/4-32 RcExl
Carburetor UMS UMS

 

7-50CC Radial Engine Specification

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