Home Page

Engine # 9

Two Cylinder, Double Acting, Reversable, Oscllating Engine

3/4" Bore by 3/4 " Stroke
Reverse by Port Exchange
Reduced speed Feedwater Pump
size: 4 1/2" high, 4 1/2" long, width with pump 4"
Weight with Flywheel and pump 2 1/2-lbs.

This is a rather unique eninge that combines the simplicity of an oscillating engine with robust design features. The cylinder trunions are .250" diameter as are all the crankshaft components. The crankshaft is of very simple construction with detachable webs. All bearing surfaces are of adequate size.

Reversing is by coventional port exchange and is very convieient for Radio Control. This enigne can power a model boat up to about 6 feet long. Because the cylinders are double acting and the cranks are set at 90 degrees the engine has positive self starting and reversing.

All rotating bearings are provided with oil holes, The main cylinder trunions are oiled by drilled passages.

This engine can do the same work as a Stuart D10, it will weigh less, cost less, and require only half the mchinig time to complete.

PLANS PACKAGE

4 D Size Sheets 22 by 34 Inches

Sheet 1 Has a full size three view assembly drawing Showing every part

The Additional Sheets Show Every detail part, many at twice size and completlely dimensioned. They are high quality and represent many hours of design time

Instruction sheets are included for some details where machining sequence or hints might be helpful. A sharp color photo of the engine is also included.

The full set of Plans Engine # 10 is just $14.95

See Order Information to order your set.

Engine Number 9
A unique engine for a large R/C model steamboat.