NA-64 N3355 (Serial No. 64-2172) owned by Timothy Liewer of Hershey,
Nebraska, USA, photographed at Galesburg, Illinois, USA, in September 2003. Photo by Buck
History: First flown in
prototype form in April 1935, the BT-9 was the end result of
North American Aviation's private-venture NA-16 single engine
basic trainer for the US Army Air Corps. A total of 226 BT-9s were ordered in three
different models providing excellent training for a student and instructor under a tandem
glass canopy. The US Navy also took delivery of 40 of the aircraft, which they fitted with
a more powerful 600-hp engine and designated the NJ-1.
Initially, the aircraft had a fabric skin, but
NAA then produced a metal-covered fuselage with a more powerful 450 hp Wright engine,
designated the BT-14. 251 aircraft of this variant were bought
by the Army Air Corps. Several nations also purchased the BT-14, among them France, which
ordered 230, designated the NA-57. An updated version of the
NA-57 was designated the NA-64. When France fell to the Germans,
1199 undelivered aircraft were sold to Britain; issued to Canada as the Yale-1.
Its lines and overall size are similar to North
American's later T-6 / SNJ / Harvard trainer, and the two are often
confused. The BT-9 / BT-14 / Yale is easily identified by its fixed landing gear and wheel
Engine: One 400-hp Wright R-975-7 radial piston engine
Weight: Empty 3314 lbs., Max
Takeoff 4471 lbs.
Wing Span: 42ft. 0in.
Length: 27ft. 7in.
Height: 13ft. 7in.
Range: 882 miles
Number Built: ~750
Number Still Airworthy: 20+
Corner BT-14 Page
North American Trainer Association
US Air Force Museum
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