Target Bearing Transmitter: The Target Bearing Transmitter, or TBT, is a permanently mounted binocular instrument that can be used to sight objects and determine their bearing relative to the heading of the submarine.
(The Target Bearing Transmitter, or TBT; is; a permanently mounted binocular instrument that can be used to sight objects and determine their bearing relative to the heading of the submarine) (a permanently mounted binocular instrument; can be used; to sight objects and determine their bearing relative to the heading of the submarine) (a permanently mounted binocular instrument; to sight; objects) (a permanently mounted binocular instrument; to determine relative; their bearing)
The Target Bearing Transmitter, or TBT a permanently mounted binocular instrument a permanently mounted binocular instrument a permanently mounted binocular instrument
is can be used to sight to determine relative
a permanently mounted binocular instrument that can be used to sight objects and determine their bearing relative to the heading of the submarine
to sight objects and determine their bearing relative to the heading of the submarine
objects
their bearing