A main spar of several making up the longitudinal framework carrying the tail of an aeroplane when not supported by the fuselage.
尾梁，尾桁
Example sentencesExamples
In 1940 his VS-300 design used a long tail boom with a small vertical rotor to counter the torque reaction.
Parts were seen to fall from the helicopter and it pitched down steeply, one witness saying the tail boom had creased and the rotor blades were turning very slowly.
Changes have been made to the central tail boom for a rear-facing radar.
We found this and saw it as something that would reduce the fatigue and help get us to our long-term fix for the tail boom.
Resident David Pykett told the inquest: ‘The tail boom had fractured but folded around the fuselage and it spun into some trees.’
The skids were spread completely, our chin bubble broken, the tail boom was bent, and we had no idea how badly the transmission was damaged.
The helicopter settled onto the ground in a nose-low attitude that caused the main rotor blades to strike the tail boom and sever it from the aircraft.
The Luftwaffe operated the Blohm and Voss 138, easily distinguishable by its twin tail booms, and the Dornier Do24 as transports during the Norwegian campaign and later for air-sea rescue.
As the helicopter pitches down, it can rotate the tail boom up into the rotor disk, which is still tilted aft.
Inspection revealed Class B damage from 7.62 mm rounds to the oil cooler, both rotor blades, sighting unit, No.2 engine, forward fuel cell, and structural supports in the tail boom, along with other superficial hits.
Then with advice from aeronautical engineers and slight modifications to a 20-tonne trailer to fit on the tail boom, we were able to get it loaded and tied down safely.
With a ‘normal’ heavy fiberglass sailplane, you would have a clamp on wheel to put on the tail boom in order to help move the glider around on the tarmac.