Engineering topics

Mckinney, M. O.

Publications and source records attributed to Mckinney, M. O..

4 records

NASA NTRS1981

Evaluation of turbulence reduction devices for the Langley 8-foot Transonic Pressure Tunnel

The device test model consisted of a cooler, turning vanes, and settling chamber (immediately upstream of the contraction) in which various combinations of screens and honeycomb were tested. Conventional hot wires were used to measure the axial and lateral turbulence reduction for the different turbulence reduction devices. The final configuration chosen consisted of a honeycomb followed by five screens.

Mckinney, M. O.↗

NASA NTRS1975

Summary of drag clean-up tests in NASA Langley full-scale tunnel

This summary of drag results presents tabulations on fighter aircraft and light twin general aviation aircraft wind tunnel tests. The figures show that the friction drag for light twins is larger than that for the fighters because of the greater wetted area and the smaller wing area used for reference. Full scale tunnel tests developed the following design features contributing to excessive drag: cooling flow system, engine exhaust stacks, landing gears, control surface gaps, and wing irregularities and leakages.

Mckinney, M. O.↗

NASA NTRS1972

The requirements for a new full scale subsonic wind tunnel

Justification and requirements are presented for a large subsonic wind tunnel capable of testing full scale aircraft, rotor systems, and advanced V/STOL propulsion systems. The design considerations and constraints for such a facility are reviewed, and the trades between facility test capability and costs are discussed.

Kelly, M. W.↗

NASA NTRS1968

Fan V/STOL aircraft.

Hovering fan powered V/STOL aircraft effects on objects on ground, discussing related dust and debris problems

Mckinney, M. O.↗