A hydrant coupler is a type of
aircraft
An aircraft is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines ...
fueling equipment which opens and allows
fuel
A fuel is any material that can be made to react with other substances so that it releases energy as thermal energy or to be used for work. The concept was originally applied solely to those materials capable of releasing chemical energy but ...
to flow through the hydrant cart into the aircraft. A hydrant coupler needs 60lbs of
air pressure
Atmospheric pressure, also known as barometric pressure (after the barometer), is the pressure within the atmosphere of Earth. The Standard atmosphere (unit), standard atmosphere (symbol: atm) is a unit of pressure defined as , which is equival ...
to open up the
pit valve to allow the flow of fuel. Hydrant couplers run off a pressure fueling system consisting of fuel and air pressure.
See also
*
Aircraft fuel system
An aircraft fuel system allows the crew to pump, manage, and deliver aviation fuel to the propulsion system and auxiliary power unit (APU) of an aircraft. Fuel systems differ greatly due to different performance of the aircraft in which they are i ...
References
External links
meggittfuelling.comfluid-transfer.co.ukgroundsupportworldwide.combeckerassociates.com
Fuels infrastructure
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