Towing installations on P-51 airplane for propeller off tests on the P-51 Front view of P-51 in towing position with P-61A preparing for take off at NACA Ames Research Center, Moffett Field, California

Northrop P-61A-5 Black Widow (AAF42-5572) Note: Used in publication in Flight Research at Ames; 57 Years of Development and Validation of Aeronautical Technology NASA SP-1998-3300 fig 44

NACA photographer Northrop P-61A Black Widow towing P-51B to release altitude of 28,000 ft over Muroc Dry Lake, California for in flight validating of wind tunnel measurements of drag. After the pilot released the tow cable, drag measurementrs were obtained at various airspeeds in a 20-minute unpowered flight. Note: Used in publication in Flight Research at Ames; 57 Years of Development and Validation of Aeronautical Technology NASA SP-1998-3300 Fig. 17

P-61A Airplane at NACA Ames Research Center, Moffett Field, California

P-61A Airplane at NACA Ames Research Center, Moffett Field, California