UMS 55cc Gas – 5 Cylinder Radial 4 Stroke Engine

(1 customer review)

$1,899.00

-

The UMS 5-55 is a very reliable radial engines which uses gas as fuel. UMS has a ton of experience building radial engines.

5 in stock

SKU: UMS5-55 Category:

The UMS 5-55 is a very reliable radial engines which uses gas as fuel. UMS has a ton of experience building radial engines.

  • 5 cylinder radial configuration absolutely stunning looks and realism
  • 55cc 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

 

Standard Metric
Type 4-Stroke Petrol SPARK IGNITION
CYLINDER 5 (ABC TYPE) 5 (ABC TYPE)
CAPACITY (CU. IN) 3.3 55CC
Bore 0.93″ 23.7MM
Stroke 0.98″ 25MM
Thrust* 16.5lbf @ 22×8 Menz prop. 7.5kgf @ 22×8 Menz prop.
Power (HP) 3.3 3.3
Rotation (RPM) 1000 – 6000 1000 – 6000
Weight 3.7lbs 1.8kg incl.(silencer )
Engine Diameter 8″ 201MM
Engine Length 5.4″ 142MM
Propeller** 22×8, 22*10 22×8, 22*10
Muffler Type Collector Ring Collector Ring
Plug Type 1/4-32 RcExl 1/4-32 RcExl
Carburetor UMS UMS

 

5-55CC 5CYLINDER TECHNICAL SPECIFICATION

 

Reviews (1)

1 review for UMS 55cc Gas – 5 Cylinder Radial 4 Stroke Engine

  1. Ralph Derico (verified owner)

    We have had this engine for about 3 months and have followed the break in procedures. It is on an older Green model 84″ Gee Bee model Y Sportster and our first flight today was great. Engine has run great right out of the box. Plane weight is just over 17 pounds and will well on just over 3/4 throttle. Our only complaint is that there are no instructions for mixture adjustment on the UMX carburetor. We recommend this engine to anyone that is interested in a great 50cc radial.

Add a review

Your email address will not be published. Required fields are marked *