AboutHeiko Hanusch Expertise Aerodynamic`s on fixed wing airplanes as well as fluid dynamics.
Weather related to flying including reading wx charts.
Propulsion systems related to aircraft.
ATC system from a pilot`s perspective.
Navigation, all forms related to flying (incl. long range).
Physiology and Psychology related to flying as well as aeromedical factors.
Basic Construction of fixed wing aircraft (stress analysis).
Experience ATP, Flight Instructor basic and advanced.
Airline Pilot and Check Airman for a major U.S. airline
Question hello
please could you please tell me 2s tarting system for a gas turbine engine other that an A.P.U
thank you jamie
Answer Jamie,
Thanks for your question.
As you mentioned for a Turbine engine the APU (if operating and installed) is the preferred way for engine start, however another way would be external air (also referred to as a Huffer cart) which is nothing but air from a bottle under high pressure. Some Turbine engine can be started by batteries (hence no air required ) that method is used mainly for Turboprop type turbines because of their light core. Yet another way to start a turbine engine is to use another turbine (referred to as a crossbleed start) which is already running and just using some of the air that is moving through it to start the other engine.
