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Author
Avbel, J. A.
Title
Aircraft Fuel System Tests With Gelled Fuel-Flowmeter Calibration, Fuel Boost Pump and Jettison Tests. Final Report. December 1971-November 1972.
Coporate
Federal Aviation Administration, Atlantic City Airport, NJ
Sponsor
Federal Aviation Administration, Washington, DC
Report
FAA-RD-73-138, November 1973, 27 p.
Contract
181-520-020
Keywords
aircraft fuels | gelled fuels | crash fires | aircraft fires | antimisting fuels | fire safety | methodology | flow rate
Identifiers
controlled flammability fuels; test of B-57 Wing Tank Fuel System
Abstract
The feasibility of using gelled fuel (nominal 250 centipoise viscosity) with full scale aircraft fuel system components was investigated. Tests indicated that turbine-type flowmeters are suitable for measuring flow rates with accuracties of 1 percent. Jettison and fuel feed operations were conducted using a B-57 wing fuel tank. Approximately 3 percent more gelled fuel than JP-5R remained in the tank after "emptying" the tank in both boost pump and jettison tests. Flow rates and times to "empty" the tank were significantly poorer with the gelled fuel when compared to the results obtained with the JP-5R fuel. The gelled fuel tested is considered unsatisfactory because of its instability in storage, causing wide varitions in viscosity.