Nitrogen Inerting of Aircraft Fuel Tanks 690437

This paper presents a solution to the problems of fuel tank fire protection by means of nitrogen inerting. Background relationships with the successful XB-70 inerting system, which led to the development of the commercial inerting system, are also discussed.
Specifically, this paper shows how aircraft inerting system design is influenced by the release of air from the fuel at high altitudes. Data are presented to show the likelihood of air saturated fuel, the way in which it is released from the fuel at high altitudes, and the effect of this release on the inert atmosphere in the fuel tanks. Problems created by this air release are discussed. Test data are presented on a scrubbing device that predictably provides controlled release and dilution of dissolved air from the fuel, thereby allowing the inert atmosphere to be maintained. Data are presented on the effect of this controlled air release on the fuel boost pump operation.
Additionally, the status of the current inerting system flight test program, as installed aboard a military aircraft, is presented.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.

Due to current capacity constraints, printed versions of our publications - including standards, technical papers, EDGE Reports, scholarly journal articles, books, and paint chips - may experience shipping delays of up to four to six weeks. We apologize for any inconvenience.
We also recommend:

Certification Flight Test for an Extended Range Modification for the Cessna 337 Aircraft


View Details


Aircraft Ground Service Connections Locations and Type


View Details


Update on Non-Electrically Invasive Liquid Level Measurement


View Details