RJL's new Sky Devil is produced to the highest standards
to provide you with the ultimate in power for old time free flight flying.
Some features like the original include dual ball bearings,
massive hardened and precision ground alloy steel crankshaft,
forged & bushed connecting rod, and a high silicon aluminum
piston fitted with two rings.

RJL's version is produced with an aerospace quality investment castings
and all machining is performed on our CNC equipment. All castings and machined parts are held to exacting standards,
actually better then the ones produced 50 years ago.

If you're looking for a real vintage racing engine that qualifies for SAM contests, this is the one.

The Super Powerhouse of the Forties!

Specifications
Double Ball Bearing Crankshaft
Loop Scavenged • Double Ring Piston
Bore: .940 • Stroke .935
Displacement: .649
Weight: (Glow version) 14.0 oz.
(Ignition version) 14.5 oz.

Specifications
Bushing Crankshaft
Lapped Iron Piston
Loop Scavenged
Displacement:  .49

Probably one of the rarest engines,
it was the largest diesel produced
in the U.S. and was to be
marketed after the war.