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Photo ID: 1015003
click image to enlarge |
Model: SEV-1XP, SEV-S1 |
Registration: X18Y (NX18Y) |
| Year: 1935 |
Serial Number: c/n 2 |
| Engine(s): P&W R1830B Twin Wasp |
Owner: |
| Location: Unknown |
Photographer: From the collection of Ken Stoltzfus |
| Date: 1935-37 |
Present Registration: Aircraft scrapped, 1937 |
Present Owner (FAA info): |
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Notes: 2/7/04 - The Seversky SEV-1XP was Major Alexander de Seversky's second aircraft and his entry in the 1935 USAAC competition for a single-seat monoplane to replace the Boeing P-26. Few aircraft have been as dramatically modified as X18Y, in its short life of three years!
The aircraft was originally built as the SEV-2XP, which was two place, fixed gear and powered by an 800-HP, Wright XR-1670 twin-row engine. It was damaged on its way to Wright Patterson Field for the competition fly-off. In the rebuilt process it was converted to single-place with retractable landing gear and the Wright R1820 (single row), in order to compete more favorably.
Seversky won the competition and in 1936 was awarded a contract to build nearly 100 aircraft, which were designated the P-35.
Aerofiles.com indicates that this aircraft was repowered with a P&W R-1830B Twin Wasp, redesignated the SEV-S1, and raced by Frank Sinclair to fourth place in the 1935 National Air races. It received a new tail at the same time. That would seem to be confirmed by this photo. The engine nose case, and the engine installation appear to be P&W R1830 instead of Wright R1820. (See my photos of the SEV-32, P-35) If that is true, the photo was taken in the aircraft's final configuration, an SEV-S1.
Only one of these aircraft was built and it was scrapped in 1937. It was the predecessor to a line of aircraft which evolved into the Republic P-47. |
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www.FlyingHigher.net -
Seversky Models
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| SEV-1XP, SEV-S1 |
| NX18Y |
| P-35, SEV-S2 |
| NR70Y |
| Seversky-Republic 2PA, AT-12 |
| N55539 |
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