Front half

The HP cylinder is all Meccano which allows me to say 'Some Meccano was used'. For proof, see the quadrants, flywheel rim, spoke overlays and read the words on the HP cylinder top plate! The spoked flywheel contains another Jackarno part for the 167b which is in effect an 8 spoke 'Spider' - very useful as it makes for accurate construction and a 'true running' flywheel without resorting to a jig. He makes them in narrow strip form for both the smaller flanged rings too!