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| | Frank Whittle and the P-59A American turbojet |
 | | In 1929, PO Whittle sketched an engine in which a piston-driven compressor would inject fuel and air into a firebox, where it would burn, expand, and be vented out the rear. |
 | | Whittle abandoned the piston-jet hybrid when he calculated that it would weigh as much as a conventional engine, deliver no additional thrust, and burn more fuel. |
 | | Whittle was given the use of an old BTH foundry near Rugby called the Ladywood Works--"drab, pinch-penny, and sometimes frightening," as he later described it. |
| www.warbirdforum.com /whittle.htm (1955 words) |
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