This technical condition specifies the general technical requirements for centrifugal pumps and spiral axial flow pumps (helical pumps for short) in aircraft fuel systems (excluding engine fuel systems). The driving device of the oil pump includes DC motor, AC motor and hydraulic motor.
HB 5644-1981 history
2008HB 5644-2008 General specincation for pumpof aircraft fuel system
1970HB 5644-1981 General Technical Specifications for Aircraft Fuel Supply Pumps (Trial)