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Effect of Wing Leading-Edge Slots on the Spin and Recovery Characteristics of Airplanes
Report presenting an investigation in the NACA 15-foot free-spinning tunnel to determine the effect of wing leading-edge slots on spin and recovery characteristics. The results indicate that recovery will generally be slower with the slots open than with them closed and the spin will be flatter and at a lower rate of descent.
Date:
April 1943
Creator:
Neihouse, Anshal I. & Pitkin, Marvin
System:
The UNT Digital Library
Free-Flight-Tunnel Investigation of the Effect of the Fuselage Length and the Aspect Ratio and Size of the Vertical Tail on Lateral Stability and Control
Report presenting tests in the free-flight tunnel to determine the effect of the fuselage length and the aspect ratio and size of the vertical tail on lateral stability and control. Fuselages of two different lengths and various vertical tail surfaces were used on a powered model in the investigation. Results regarding the test conditions, flight tests, and force tests are provided.
Date:
April 1943
Creator:
Shortal, Joseph A. & Draper, John W.
System:
The UNT Digital Library
An investigation of aircraft heaters 11: measured and predicted performance of a slotted-fin exhaust gas and air heat exchanger
Report presenting the thermal and pressure drop performance data of a slotted-fin Stewart-Warner exhaust gas and ventilating air heat exchanger. Three different crossflow air shrouds were used in testing. The rate of heat transfer was about the same for each shroud, but the static pressure drops varied greatly.
Date:
April 1943
Creator:
Boelter, L. M. K.; Miller, M. A.; Sharp, W. H. & Morrin, E. H.
System:
The UNT Digital Library