Quote:
Originally Posted by Engine Serang
It's not a hanging offence.
But what is a hanged, drawn and quartering offence is to put a Fullagar or Doxford or H&W Opposed Piston engine in a ship. And I am unanimous on that.
Did Cammel Laird not look at the Fullagar engine, the Opposition and the Market and say let's cut our losses?
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The bit below is written on the assumption that I am granted a thread drift exemption certificate;
Way back in 1913ish Hugo Junkers and AG Weser in Germany built a "double Doxford" before the Doxford had even been thought of.
There were three units in each engine of a twin screw installation and each unit consisted of two cylinders, one above the other with two pistons in each. The bottom piston on the lower cylinder was connected to the upper piston of the upper cylinder and the upper piston of the lower cylinder was connected to the lower piston of the upper cylinder. Glad you all got that
The cylinder bore was 400mm and the engine was 8.4 metres high! Each engine was supposed to develop 1000bhp @ 120 rpm but it was a complete failure and the technical press of the time considered it to be the biggest failure in the history of marine engineering.
The owners refused to accept the vessel until the engines were replaced with steam engines and and Scotch boilers .
Despite this total failure, Hugo Junkers went on to design a large number of very successful opposed piston aero engines which gave the RAF so much trouble during WWII