In reality, this problem does not occur. The machine gun on the back of the machine is equipped with a linkage limit device. When the machine gun is facing the angle of the rudder, the trigger cannot be pressed down, and the machine gun can be pressed again after it has been turned.
I saw a question in the comment area just now, asking "Will the backward machine gun hit the tail of my plane? " I was curious about the relevant questions before, and I checked some information, and I checked it again just now. The situation is roughly as follows ( Not a military expert, please correct me if I'm wrong):
Most of the bombers used by the US military in the Battle of Midway were SBD dreadnought dive bombers, which were developed in 1940 before the war. just retired.
During World War II, it was a common strategy to equip bombers with machine guns or even machine guns at that time. For example, the B17 bomber was equipped with machine guns to the extreme and spread all over the body. As shown in the figure below, on the nose, tail, back and fuselage , There are machine guns on both sides, 360-degree all-round defense
The machine gun behind the B17 can't hit its tail because it is behind the tail, as shown below:
Sorry, I put the wrong picture, this is the picture:
After the Vietnam War, the U.S. military found that the machine guns carried by bombers were already difficult to deal with new weapons such as low-altitude missiles, so they gradually cancelled the machine guns and freed up weight to increase other devices.
Since the bomber is armed to the teeth, naturally there are times when the teeth bite to the lips. For example, in the movie "Indiana Jones 3", the professor used the vertical tail (or rudder) of the tail of his plane when dealing with the pursuit of the Nazi plane. smashed.
But in reality, this problem does not occur. The machine gun on the back of the machine is equipped with a linkage limit device. When the machine gun is facing the angle of the rudder, the trigger cannot be pressed down, and it can be pressed again after it is turned.
Relatively speaking, the mechanical structure of the back of the machine is relatively simple. Instead, it is a machine gun in the nose. In order to avoid hitting the propeller of the nose, a machine gun firing coordinator is installed in the nose. The principle of this device is to connect the propeller shaft and the machine gun through a cam lever device. When the blade overlaps with the machine gun, the cam on the propeller shaft is just out of contact with the lever, and the machine gun stops shooting to avoid hitting the propeller. as the picture shows.
And the shooting coordinator has formed two genres since the emergence of World War I. The British school uses a hydraulic spring mechanism to drive the firing, the German school fires with electrical signaling. Electric shocks later became mainstream. The machine gun firing coordinator continued to be used in the Volunteer Army during the Korean War. Later, the single-shot and double-shot propellers were staggered in the positions of the machine guns, and the popularity of jet fighters was withdrawn from the stage of history. And propeller planes, such as the A29 in Brazil, are still in service with the U.S. Air Force, attacking terrorist vehicles in places like Afghanistan.
As for other positions of the aircraft, you can limit the rotation angle of the turret to avoid hitting your own fuselage. When the bombers are sailing in formation, they will also fly at staggered altitudes to avoid machine guns hitting the planes of comrades-in-arms.
However, the fact that the machine gun does not hit the comrades or its own tail does not mean that other accidental injuries will not occur. For example, when the US military took off from the UK to bomb Berlin on August 17, 1943, the bomber above smashed the tail of the bomber below. broken, as shown in the following figure:
The B17 eventually crashed, sending at least 10 American soldiers to the Nazis.
However, after the tail was damaged, it did not survive. For example, this guy, in the 1962 experiment, the B52 aircraft encountered severe turbulence when it passed the Spanish Peak in Colorado. About 83% of the vertical tail was cut off by the turbulence, 1 The ton-heavy tail and rudder are gone. But the crew dropped the rear wheels and the plane flew for another five hours before landing safely at Blytheville Air Force Base in Arkansas, where it was repaired and retired in 2008.
References (including but not limited to):
http://www.360doc.com/content/19/0514/15/33540468_835650216.shtml
http://war.163.com/photoview/4T8E0001/73958.html#p=A66G816F54TD0001c _
https://baijiahao.baidu.com/s?id=1592722108972322521&wfr=spider&for=pc
https://baijiahao.baidu.com/s?id=1600435609031567986&wfr=spider&for=pc
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