4 inch scale Fowler A4 agricultural engine

Little to say about this engine really, the track record of the builder and pictures both here and on the archive speak for themselves.

4 inch scale Fowler A4 agricultural traction engine, built using drawings from the Reading University Fowler archives.

Steel boiler, 300psi hydraulic test for 150psi working pressure, expanded tubes, feed by injector and mechanical pump.

Water lifter with hose mounted on running board.

Twin Ramsbottom safety valves. Cast iron cylinder, slide valve actuated by Stephenson's valve gear with pole reverser on footplate. Mechanical lubricator with supplementary displacement lubricator.

Two road speeds with winch behind nearside rear wheel, mechanical screw down brake working on the rear wheel rims.

The engine is brand new, since the pictures were taken it has been steamed for the boiler inspector.

Front wheel 17 inches diameter
Flywheel 18 inches diameter