The UMS 5-75 is a very reliable radial engines which uses gas fuel. UMS has a ton of experience building radial engines. 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
- 5 cylinder radial configuration absolutely stunning looks and realism
- 75cc displacement perfect for your scale project
- Comes complete with exhaust collector ring,spark plugs,electronic ignition, and engine mount ready to run
- 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 87-110 octane gasoline with 32:1 gas/oil mixture
Specifications
5-75CC 5CYLINDER TECHNICAL SPECIFICATION
Standard | Metric | |
---|---|---|
Type | 4-Stroke Petrol | SPARK IGNITION |
CYLINDER | 5 (ABC TYPE) | 5 (ABC TYPE) |
CAPACITY (CU. IN) | 4.5 | 75CC |
Bore | 1.04″ | 26.5MM |
Stroke | 1.08″ | 27.5MM |
Thrust* | 19.8lbf @ 24×10 Menz prop. | 9kgf @ 24×10 Menz prop. |
Power (HP) | 4.5 | 4.5 |
Rotation (RPM) | 1000 – 6000 | 1000 – 6000 |
Weight | 5.9lbs | 2.65kg incl.(silencer ) |
Engine Diameter | 9″ | 231MM |
Engine Length | 6.2″ | 162MM |
Propeller** | 24×8, 24*10 | 24×8, 24*10 |
Muffler Type | Collector Ring | Collector Ring |
Plug Type | 1/4-32 RcExl | 1/4-32 RcExl |
Carburetor | WALBRO WT-621 | WALBRO WT-621 |
5-75CC 5CYLINDER TECHNICAL SPECIFICATION
John Wilson –
I purchased this UMS 5-75cc from Adrian last June as soon as stock became available. It has been an outstanding investment. Very reliable and very easy to start. It has been a great deal of fun. So pleased with the purchase, I recently bought a UMS 5-125cc. Adrian provides fabulous support and super fast shipment. Adrian has gained my loyalty and the one stop, sole dealer for me whenever I need a multi-cylinder radial. I can not speak highly enough about CH-Ignitions and Adrian. There simply aren’t enough “stars” available to give a truly righteous rating for the appreciation I have for this business. As a matter of fact, I also purchased an EME70 from Adrian. Six months later, out of the blue, I received an email inquiry from Adrian asking the status of my engines and whether everything was okay with them. It doesn’t get any better then that!