Tail gunner
Overview
 
A tail gunner or rear gunner is a crewman
Crewman
Crewman is a generic term for a crew member of an aircraft, naval vessel, military unit, or team of professionals attempting to accomplish a goal. In some science fiction , Crewman is the lowest military rank on board a spacecraft.The term "Crewman" may also be related in the non-gender specific...

 on a military aircraft
Aircraft
An aircraft is a vehicle that is able to fly by gaining support from the air, or, in general, the atmosphere of a planet. An aircraft counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines.Although...

 who functions as a gunner
Air gunner
An air gunner a.k.a. aerial gunner is a member of an air force aircrew who operates flexible-mount or turret-mounted machine guns or autocannons in an aircraft...

 defending against enemy fighter
Fighter aircraft
A fighter aircraft is a military aircraft designed primarily for air-to-air combat with other aircraft, as opposed to a bomber, which is designed primarily to attack ground targets...

 attacks from the rear, or "tail", of the plane. The tail gunner operates a flexible machine gun
Machine gun
A machine gun is a fully automatic mounted or portable firearm, usually designed to fire rounds in quick succession from an ammunition belt or large-capacity magazine, typically at a rate of several hundred rounds per minute....

 emplacement on either the top or tail end of the aircraft with a generally unobstructed view toward the rear of the aircraft. While the term tail gunner is usually associated with a crewman inside a gun turret
Gun turret
A gun turret is a weapon mount that protects the crew or mechanism of a projectile-firing weapon and at the same time lets the weapon be aimed and fired in many directions.The turret is also a rotating weapon platform...

, tail gun armaments may also be operated by remote control from another part of the aircraft.

The tail gun armament and arrangement varied between countries.
 
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