Aerospace Engines A to Z
Aerospace Engines A to Z

Updated: 07-Jun-2024

The British Static Motor Company was founded by the American John W. Smith. (see)

-Before, in the United States, he had founded the Static Motor Company (see) where he had designed some star engines.

-The United Kingdom was interested in his engines and the British Admiralty asked him to produce them in England. In January 1915 John came to England and set up the British Static Motor Company in Birmingham with his partner Charles Schofield. An experienced mechanic from Chicago, Ralph Watson, came with them.

-The ten cylinders of the 300 hp engine were in a single row. Normally, this number of cylinders in a four-stroke radial is divided in two five-cylinder rows. Smith placed them on a single plane. For this reason the crankshaft had two bends and the connecting rods were inclined to coincide with the center of the cylinders.

Partial cross-section of the 150 hp engine
“Partial cross-section of the 150 hp engine”

-The engine was considered experimental according the US information.

-The one shown above is a small engine, 150 HP intended for the Post Victory 4, but since it was not ready in 1915, it was mounted on a Clerget. Another bigger one gave 300 HP at 1,600 rpm.

300 HP engine drawing
“300 HP engine drawing”

-Finally the little one powers a Vickers FB-5. This engine could go in the pull or push position.

British-Static en el FB-5
“British-Static on Vickers FB-5”

Engines of British Static Motor Company

Model: 10-cyl. radial. 300 hp

Arquitecture:
Cooling:
Total Displacement:
Bore / Stroke: x
Power:
Weight:

Other details:
Model: Smith Static, 6 cyl.

Arquitecture:
Cooling:
Total Displacement:
Bore / Stroke: x
Power:
Weight:

Other details:

The author of this edition of Aeroengines AtoZ, through Aeroteca, collaborated on Version 2 of this video, which is presented here.

To understand the operation of the connecting rods, the 1929 Continental R 670 single-cylinder engine was chosen.

A demonstration of Version 3, improved at the author's suggestion, is also available on YouTube at a later date. This version shows bronze valve guides, improved valve spring movement, and the split crankshaft counterweights and front bearing balls also move.

The design is from Juan Soler, Sant Cugat, Barcelona

Below we show a flash of version 3

Counting also with the coloboration of JMC of Enginys Mecanics in Mataro, Barcelona