The UMS 7-77 is a very reliable radial engines which uses glow 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 accesisble.

In addition we at Tomahawk Aviation offer a full after sales service support for these engines here in Europe, fast, competent and reliable.

Key features
“ 7-cylinder radial configuration—absolutely stunning looks and realism
“ 4-stroke
“ Midsize 77cc displacement
“ Comes complete with exhaust collector ring —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 glow fuel