Flight Test Evaluation of an RAF High Altitude Partial Pressure Protective Assembly
Ashworth, George R. and Putnam, Terrill W. and Dana, William J. and Enevoldson, Einar K. and Winter, William R. (1979) Flight Test Evaluation of an RAF High Altitude Partial Pressure Protective Assembly. Technical Report NASA TM-72864, Research Engineering, NASA Dryden Flight Research Center.
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Abstract
A partial pressure suit was evaluated during flight tests in an F-104 and F-15 as a protective garment for emergency descents. The garment was chosen to provide optimum dexterity for the pilot, which is not available in a full pressure suit, while protecting the pilot at altitudes up to 18,288 meters (60,000 feet) during a cabin decompression and subsequent aircraft descent. The garment is an RAF pressure jerkin and modified anti-g suit combined with an RAF oronasal mask. The garment can be donned and doffed at the aircraft to minimize thermal buildup. The oronasal mask was favored by the pilots due to its immobility on the face during high g-loading. During cabin decompressions in the F-104 and F-15, cabin pressure altitude was measured at various aircraft angles of attack, Mach numbers, and altitudes to determine the effect of the aerodynamic slipstream on the cabin altitude. The greatest difference for the F-104 was a cabin altitude of 518 meters (1700 feet) above the indicated altitude whereas for the F-15 the greatest difference was 840 meters (2755 feet) below the indicated altitude.
| EPrint Type: | NASA Technical Memorandum |
|---|---|
| Keywords: | Protective garments, Pressure suits, Anti-g suit, Aerodynamic slipstream effects on cabin altitude, Oronasal mask |
| Subjects: | Aircraft/Project: F-104 Aircraft/Project: F-15 (51 - 55) Life Sciences: Other, Life Sciences |
| ID Code: | 676 |
| Deposited On: | 10 Febuary 2006 |
| Additional Information: | 37 pages. |
