The UMS 7-360cc 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
- 7 cylinder radial configuration absolutely stunning looks and realism
- 360cc 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) | 21.9 | 360CC |
| Bore | 1.57″ | 40.00MM |
| Stroke | 1.65″ | 42MM |
| Thrust* | 83.77lbf @ 39×12 Biela prop | 38kgf @ 39×12 Biela prop. |
| Power (HP) | 21.1 | 21.1 |
| Rotation (RPM) | 1000 – 4900 | 1000 – 4900 |
| Weight | 18.73lbs | 8.5kg incl.(silencer ) |
| Engine Diameter | 13.2″ | 335MM |
| Engine Length | 9.52″ | 242MM |
| Propeller** | 39×12 | 39×12 |
| Muffler Type | Collector Ring | Collector Ring |
| Plug Type | CM-6 RcExl | CM-6 RcExl |
| Carburetor | WALBRO WT-225 | WALBRO WT-225 |






HanrasDulieu claude –
Thank you do much
Chd