TM 55-1560-307-13&P
GLOSSARY
APU
Auxiliary power unit. A small turbine powered combination electrical generator
and hydraulic pump permanently installed in the aircraft.
BONNEY WRENCH
A thin head open end wrench with only one opening and short tapered handle.
Normally used on hose and tube fittings.
CAM LEVER
A manually operated lever located on top of extended range fuel system (ERFS)
fuel tank, linked mechanically to operate fuel dump valve located at bottom of
tank.
CAMLOCK
A type of quick release latch or fastener.
COUPLING VALVES
Spring loaded discs built into hose couplings which close automatically when
couplings are separated, thus preventing fuel spillage. Fuel is field captive in
the lines.
CRASHWORTHY
The design of an aircraft's fuel system to sustain crash damage with fuel
leakage.
CUT LINE
A line or mark on hose fittings used as a guide in establishing length bulk hose.
ECP
Electrical control panel.
ELECTRO OPTICAL
A design principle used by the ERFS low fuel pressure sensing system.
Absence of fuel in pump lines causes a change in light pattern detected by
optical sensor which is translated into an electrical output.
ERFS
Extended range fuel system.
EXTRUSION
A metal strip or bar formed with a consistent cross section during manufacturing.
FARE
Forward air refueling equipment.
FLASH POINT
Lowest temperature at which liquid will give off sufficient vapor to ignite upon
application of flame or spark.
FMCP
Fuel management control panel.
HICHS
Helicopter internal cargo handling system.
KINK
An undesirable crimp, twist, or sharp bend in a hose causing restriction of fluid or
gas flow.
LOCKNUT
The internally threaded end fitting of a hose or piece of rigid tubing.
GLOS-1
