Specifications

Mosquitos were also used by several U.S. Army Air Forces units for photo and weather reconnaissance, and as night fighters.

Aircraft -  Mosquito (UK)

For the most part, American aerospace testing was done on American aircraft.  However, beginning with WWI, whenever the United States obtained examples of foreign aircraft - either from friendly countries through cooperative arrangements or from enemies via capture or defection- they were likely to wind up at McCook Field or Wright Field for a thorough evaluation which included flight testing if possible. 

"During WWII evaluations at Wright Field included allied aircraft like the Russian Yak-9 and the British Spitfire and Mosquito, and enemy aircraft including the German JU-88, ME-109, FW-190, ME-262, and the Japanese Zero.  The end of the war brought large numbers of captured aircraft for evaluation.  As with other test flight activities, much of the foreign aircraft evaluation moved to Muroc Air Base (later Edwards AFB) after the war, but even then the occasional foreign aircraft came to the Miami Valley for testing, as a MiG-15 (courtesy of a North Korean defector) at Patterson Field attests." (Source: Against the Wind)

Specifications

Span: 54 ft. 2 in.

Length: 40 ft. 6 in.

Height: 12 ft. 6 in.

Weight: 23,000 lbs. loaded

Armament: 4,000 lbs. of bombs in bomber version

Engines: Two Rolls-Royce Merlins of 1,690 hp. ea.

Crew: Two

Cost: $100,000 (approximately)

Serial Number: RS709

Displayed as (S/N): PR.XVI NS519

PERFORMANCE

Maximum speed: 415 mph

Cruising speed: 276 mph

Range: 1,955 miles

Service Ceiling: 42,000 ft.

Source: U.S. Air Force Museum