BSU

BSU
Beam steering unit.
BUDDY OR TRAINER BOX
Two similar transmitters that are wired together with a "trainer chord." This is most useful when learning to fly -- it`s the same as having dual cont...

Boots - Inflatable device on leading edge of wings and tail. Used to remove ice.
Bracing wire - A solid steel wire used to support the structure of an airplane's wings or fuselage.
BRG - Bearing.
BSU - Beam steering unit.

See also: Leading edge, Leading, Altitude, Plane, Cabin