Want to know how a radial engine works? Then look no further than the Pembroke Dock Heritage Centre where a working engine in miniature is now 'running'.

The creation of Sunderland Trust volunteer Paul Tomlinson, of Freshwater East, the miniature engine is a work of art, and a must-see.

Paul has modelled the nine cylinder Pegasus radial engine using metal parts, and acrylic tubing, faithfully recreated in his workshop. These include a crankshaft and nine connecting rods and pistons, all fashioned on Paul's lathe.

He has connected the working parts to an electric motor and LED lighting. At the press of a button, the engine - complete with three-bladed propeller also made by Paul - fires up.

This is the second model Paul has made for the Trust's Flying Boat Workshop area - a smaller hand-operated version has been on view for some years and has fascinated visitors.

Both models take pride of place alongside the real thing - a Pegasus radial engine from Sunderland T9044 recovered from the Haven waterway and conserved by the volunteer team in the workshop.