Noun
English Wikipedia has an article on:vertical stabilizerWikipedia
vertical stabilizer (plural vertical stabilizers)
(aviation) The fin on the tail of an aircraft; it includes the rudder on its trailing edge
According to the NTSB, this aggressive use of the rudder controls by the co-pilot caused the vertical stabilizer to snap off the plane. Source: Internet
A small cylindrical module, similar in shape to a finless dart, was placed atop the vertical stabilizer at the rear of the tank, acting as a centre of gravity balance and attachment point for a variety of equipment sets. Source: Internet
Army Lieutenant Colonel Kenneth B. Wolfe (head of Army Production Engineering) asked Lockheed to try external mass balances above and below the elevator, though the P-38 already had large mass balances elegantly placed within each vertical stabilizer. Source: Internet
Lippisch changed the system of vertical stabilization for the DFS 194's airframe from the earlier DFS 39's wingtip rudders, to a conventional vertical stabilizer at the rear of the aircraft. Source: Internet
Minor damage was spotted on the vertical stabilizer of the orbiter, as a portion of the tail fin above the rudder/speedbrake had broken off. citation The broken section was recovered by museum staff. Source: Internet
Major portions of STA-099, including the payload bay doors, body flap, wings and vertical stabilizer, also had to be returned to their individual subcontractors for rework. Source: Internet