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Posted 12/30/2008 Printable Fact Sheet
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Vultee YA-19
Vultee YA-19 in flight. (U.S. Air Force photo)
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The Vultee YA-19 was an Air Corps service test version of the company financed V11. Seven aircraft were ordered in the summer of 1938, and it - made its first flight onJan. 27, 1939. The YA-19 was similar to the Northrop A-17A; however, it carried a crew of three: pilot, observer/gunner, and bombardier/photographer. The aircraft was powered by a 1200-hp Twin Wasp radial engine and had six .30-cal. machine guns installed -- four forward-firing machine guns operated by the pilot, one .30-cal. flexible machine gun manned by the rear gunner and a ventral-mount .30-cal. machine gun operated by the bombardier/photographer. The YA-19 had a rather unusual tail. The horizontal stabilizer was on top of the fuselage and completely forward of the vertical stabilizer. The vertical stabilizer/rudder was undersized and caused directional stability problems (yaw axis).

The Air Corps ordered the YA-19s to gather test data to compare against the twin engine light attack planes coming into favor with the Army general staff (i.e. Douglas A-20). The twin engine designs were clearly superior to the single engine attack aircraft in speed, armament and bomb load. As a result, no additional orders were placed for the YA-19.

After service testing was completed. Five YA-19s were assigned to the 17th Attack Group at March Field, Calif. The aircraft were only assigned briefly before being transferred to the Canal Zone as utility transport/liaison aircraft. While in operational service the aircraft were designated A-19s. The A-19 was never used in combat and was quickly replaced by more capable attack aircraft in the early 1940s.

Two YA-19s were modified to test various engine configurations. One aircraft was fitted with a Lycoming O-1230 (12 cylinder opposed) engine. The vertical stabilizer on this aircraft, designated XA-19A, was also enlarged. Later, the engine was changed to an upgraded version of the Pratt & Whitney Twin Wasp and designated XA-19C. A second YA-19 was used as an engine test bed for the Pratt & Whitney R-2800 radial engine and designated XA-19B.

Type Number built/
YA-19 7 Service test version of V11

Armament: Four forward-firing .30-cal. machine guns, one flexible .30-cal. machine gun for the rear gunner and one .30-cal. ventral machine gun for the bombardier, plus 1,080 lbs. (30x36 lbs.) of bombs carried internally
Engine: Pratt & Whitney R-1830-17 Twin Wasp radial of 1200 hp
Maximum speed: 230 mph
Cruising speed:
207 mph
Range: 1,350 miles (maximum ferry range)
Service ceiling: 20,500 ft.
Span: 50 ft. 0 in.
Length: 37 ft. 10 in.
Height: 10 ft. 0 in.
Weight: 10,420 lbs. gross takeoff weight
Crew: Three (pilot, observer/gunner and bombardier/photographer)
Serial numbers: 38-549 to 38-555
Other notes: The second YA-19 (S/N 38-550) was completed as XA-19B. The last YA-19 (S/N 38-555) was completed as XA-19A and later converted to XA-19C.

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