The superb Hector photo reveals two rows of exhaust stubs -- it's the H24 Napier Dagger, which had 24 cylinders, with 24 spark plugs and 48 valves, all of which required frequent maintenance. Designer Frank Halford learned from the Dagger to produce the mighty Napier Sabre for the Typhoon and Tempest, and by 1946 it was the world's most powerful aero-engine certified at 5000bhp for civil use. But by then we had entered the jet age.
On another subject, please note that I posted #9900 on Boxing Day, this is #9950.
Danny, stand by for post #10000 even if you post a few lines to fill #9998/9, other personnel please prepare to stand clear for this historic occasion
