Infomation

Description

TECHNICAL SPECIFICATIONS

Bore: 9mm

Stroke: 12mm

Capacity: 3.05cc

Working Pressure: 30-45psi (2-3 bar)

Length: 75mm or 3″ (excluding throttle handle)

Width: 45mm or 1.77″ (excluding throttle handle)

Height: 84mm or 3.3″ (excluding lubricator cap)

Weight: 322g or 11.35oz

This engine has been engineered to give a balance between the aesthetic appearance and sound engineering practice. Miniature roller races have been utilised extensively the crankshaft and big ends are supported on roller races. The result is that the bottom end of the engine requires very little lubrication other than minimal lubrication for the eccentric straps. This lends itself very clean and smooth operation together with low maintenance.

In an effort to simulate materials of the age, the block, steam chest and engine bed have been manufactured from aluminium which is then treated to give a textured finish. The components are subsequently hard anodised to BS5599. Hard anodising has a hardness approximating “sapphire” and is therefore very durable and wear-resistant. This combination gives a finish that closely resembles that of cast iron. Pistons and slide valves are manufactured from complementary materials which offer extremely good sealing characteristics combined with very low friction.

Stainless steel, brass and bronze are used extensively throughout the engine. As a result of this, the engine is lightweight, compact and powerful, offering the modeller an engine that looks authentic and is highly functional which should give years of untroubled enjoyment.

 

 

 

 

 

 

 

 

 

 

 

 

 

These two pictures clearly show the simulated wood cladding and brass straps. The brass column tops that double as lubrication points for the piston rods can be seen. This picture also demonstrates the low position of the crankshaft in keeping with engines of the day, this also allows the modeller the ability to connect the output shaft to the propeller shaft without having to angle the engine steeply.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

These two pictures show the fully profiled appearance of the crank webs together with the economical nature of the engine bed. The dissimilar size of the cylinder heads and steam chests can also be seen.

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