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UMS 115cc Gas – 9 Cylinder Radial 4 Stroke Engine

(1 customer review)

$2,748.00

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The UMS 9-115 is a very reliable radial engines which uses gas 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.

2 in stock (can be backordered)

SKU: UMS9-115 Category:

The UMS 9-115 is a very reliable radial engines which uses gas 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.

  • 9 cylinder radial configuration absolutely stunning looks and realism
  • 115cc 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 9-115

 

Standard Metric
Type 4-Stroke Petrol SPARK IGNITION
CYLINDER 9 (ABC TYPE) 9 (ABC TYPE)
CAPACITY (CU. IN) 9.7 90CC
Bore 0.98″ 25.1MM
Stroke 1.02″ 26MM
Thrust* 27.5lbf @ 24×10 Menz prop. 12.5kgf @ 24×10 Menz prop.
Power (HP) 7.6 7.6
Rotation (RPM) 1000 – 6000 1000 – 6000
Weight 7.7lbs 2.8kg incl.(silencer )
Engine Diameter 10.2″ 230MM
Engine Length 6.7″ 170MM
Propeller** 24×8, 24×10, 24×12 24×8, 24×10, 24×12
Muffler Type Collector Ring Collector Ring
Plug Type 1/4-32 RcExl 1/4-32 RcExl
Carburetor WALBRO WT-621 WALBRO WT-621

 

9-115CC 9CYLINDER  TECHNICAL SPECIFICATION

 

Reviews (1)

1 review for UMS 115cc Gas – 9 Cylinder Radial 4 Stroke Engine

  1. Bill Fischer (verified owner)

    Great engine, had some setup issues on my end that Adrian was absolutely the best on walking me through to correct. Started with a recommended prop of 20×9, found it was revving to high at 6700. 700 rpm higher than recommended. Settled on a 27×10, now runs at 5400 rpm. Thanks Adrian!

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