The UMS 5-125 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
- 125cc 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 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 87-110octane gasoline with 32:1 gas/oil mixture
Specifications
| Standard | Metric | |
|---|---|---|
| Type | 4-Stroke Petrol | SPARK IGNITION |
| CYLINDER | 5 (ABC TYPE) | 5 (ABC TYPE) |
| CAPACITY (CU. IN) | 7.6 | 125CC |
| Bore | 1.22″ | 31MM |
| Stroke | 1.29″ | 33MM |
| Thrust* | 33lbf @ 26×10 Menz prop | 15kgf @ 26×10 Menz prop. |
| Power (HP) | 8 | 8 |
| Rotation (RPM) | 1000 – 6000 | 1000 – 6000 |
| Weight | 8.6lbs | 3.05kg incl.(silencer ) |
| Engine Diameter | 10.4″ | 265MM |
| Engine Length | 6.5″ | 166MM |
| Propeller** | 26×8, 26*10 | 26×8, 26*10 |
| Muffler Type | Collector Ring | Collector Ring |
| Plug Type | CM-6 RcExl | CM-6 RcExl |
| Carburetor | WALBRO WT-621 | WALBRO WT-621 |
5-125CC 5CYLINDER TECHNICAL SPECIFICATION
Kelly Conway (verified owner) –
I just received this engine from Adrian at ch so far i am very impressed wit the engine starts easy and runs well, the sound is incredible Adrian has been very helpful with all my novice questions
Larry –
The engine is of high quite , And I am impressed with it.
Larry –
The engine is of high quality , And I am impressed. It would be nice if it had a parts breakdown, with a parts list so parts cod be ordered.