This unique engine has forward, reverse and speed control capabilities, using a single lever which can be servo operated for radio control. Think of it. Just one servo does all of this! Stop! Go Forward! Go Aft! And control the speed in both directions.

This engine features a cast bronze base and frames, plus permanently lubricated sintered  bronze sleeve bearings (Oilite) on the crank shaft and piston rod. The crank pin bearings are machined from solid bronze which run on a ground pin. It also has a precision ground stainless steel piston rod with "O" ring seals. The light weight aluminium cylinders are hard anodized to give you long wear.

Approximate dimensions are: Height 2-1/2" (64 mm) Width 4-1/2" (115 mm) and Length 3-1/8" (80 mm) parallel to the shaft. The crankshaft is 3/16" diameter precision ground stainless steel. The steam inlet and outlet are both threaded 3/16-40. This kit comes completely machined for easy assembly.