These engines are available by special order only. Please email us at info@aerobertics.be to place your order.
As of now, includes a high-quality brushless gear pump (Gerotor principle).
The UMS 7-90 is a very reliable radial engines which uses gasoline as 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 accessible.
The newest version of this motor comes with a new carburetor. A fuel pump is not needed any more.
FEATURES:
- 7-cylinder radial configuration—absolutely stunning looks and realism
- 4-stroke
- Midsize 90cc displacement
- Comes complete with exhaust collector ring and electronic ignition —one-box purchase for a ready-to-mount-and-run engine
- 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 gasoline fuel
- Test results: 4700-4800 rpm with Fiala 26x10 Propeller
- Fuel pump included in the set
SPECIFICATIONS:
- Cylinder: 7
- Carburetor: WT-793 A
- Displacement: 90 cc
- Bore: 25.0 mm
- Stroke: 26.0 mm
- Power: 6.0 PS/HP
- Rotation (RPM): 1450-5600
- Length: 20.0 cm
- Width: 23.0 cm
- Height: 23.0 cm
- Weight: 3.2 kg
- Propeller recommendation: 24 x 10
- Muffler: Ring muffler included
- Ignition: Electronic
- Spark plug: 1/4-32 RECXL
- Fuel: Gasoline/Oil mixture
