This aircraft was basically a monoplane version of the Boeing P-12, differing in having the lower wing omitted and in having all-metal construction.
Boeing numbered the craft as its Model 202; while the United States Army accepted it for testing and designated it as XP-15, they never actually purchased it, and it retained its civil registration of X-270V.
It first flew in January 1930, where it was discovered that the vertical stabilizer (a P-12C type) needed to be larger in order to compensate for the single wing. Initial testing showed a top speed to 178 mph, but with enlarged tail surfaces and a Townsend cowling, it recorded 185 mph at 8,000 ft.
- Lloyd S. Jones, U.S. Fighters (Aero Publishers, Inc., 1975) pp. 48-49 ISBN 0-8168-9200-8
- National Museum of the USAF page, with photo
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