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View Full Version : How do you work the rate of fuel consumption for an aircraft in climb/descent?


EZY_FR
21st Feb 2013, 18:09
Hey all. I am working on the conversion of the BAe 146-200 into an ASW aircraft for an honours University project. An ASW aircraft needs to have a long range and endurance in order to carry out the required missions. Another member of the group has worked out the fuel capacity for the aircraft, and we have almost worked out the Payload we require to carry out the missions, but I don't know how to calculate the fuel burn rate for an aircraft in climb or in descent. I already have a TSFC for the aircraft at cruise(0.720 at 25,000 feet) but I understand that SFC isn't constant with altitude up until approx. 11km above sea-level. All help well appreciated.

Epsomdog
13th Mar 2013, 04:06
You're not serious about taking a 146 out of gliding distance from land are you! If so you might want to hang on a few spare engines:)

Epsomdog
15th Mar 2013, 00:05
http://www.aviation.org.uk/docs/flighttest.navair.navy.milunrestricted-FTM108/c7.pdf