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Unpressurized Navajo Air Conditioning System
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1972 by SAE International in United States
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It has been obvious for some time that an air conditioning system is a desirable option for general aviation aircraft. This paper discusses the more important details of the design and development program for the unpressurized Piper Navajo air conditioning system.
The final system weighs 97.6 lb and provides a maximum ground cooling capacity of 18,000 Btu/h on a 100 F day at 1000-1500 engine rpm. Flight testing failed to reveal measurable aircraft performance change with the system off.
Since the basic system is closely related to existing automobile systems, emphasis to be placed on the problems unique to the aircraft installation.
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CitationEklund, R., "Unpressurized Navajo Air Conditioning System," SAE Technical Paper 720328, 1972, https://doi.org/10.4271/720328.
- Herr Lewis E. “Pressurized Navajo Environmental System.” SAE Transactions 78 1969 paper 690330
- Jiruska J. L. “Air Conditioning the Piper Cherokee Product Line.” Paper 710391 SAE National Business Aircraft Meeting Wichita March 1971