Machine cannon Messerschmitt Bf 109 G-6, Messerschmitt Bf 110 G-2, ... Twin revolver cannon AK-230 light naval gun/CIWS 30×210mmCz vz.53/59 Czechoslovakia: Praga Hostivař Twin anti-aircraft autocannon M53/59 Praga 30×250mm Caseless RMK30 Germany: Mauser: Recoilless revolver cannon Wiesel AWC (experimental), Eurocopter Tiger UH (experimental) 35×228mm 35/1000 Switzerland: … GM-35-027. I can lead the targets just fine with all of them and get some nice clean kills. Firing a 20mm diameter projectile, it delivered a useful load of explosive from a relatively light weapon. The F7F with its 4 20mm cannons, the P-61 Black Widow with it's rather heavy 20mm armnament and a couple of prototypes that would use the Oldsmobile made 37mm cannon. Commander Monroe noted that, from a gun “horsepower” standpoint, one 20 mm cannon was equivalent to three.50-caliber machine guns. 1:72 Weapons Collection (32 pcs.) If you are going to be in the air for four hours or more it is nice to know that your ammo supply may be adequate. That 16 extra seconds could come in handy. If you read "The Shattered Sword" the Zekes having to land continually to replenish the 20 mms during the attacks from the AC based on Midway had a major impact on the eventual outcome of the battle. Perhaps it did not matter as much to British and German pilots and the reason might have been that their AC could not stay in the air as long as the US models. The F-86 carried six M-3 .50-caliber machine-guns like the one displayed at the museum. It could fit one .50-caliber (12.7 mm) and two .30-caliber (30.06) machine guns. 2. It was a severe handicap for the Zekes at Midway with only 60 rounds per 20 MM cannon. Or 1x 75mm cannon and 12x .50s, or 1x 37mm cannon, 1x 75mm cannon, and 10x .50s. The problem with mixing various calibers in the armament of a fighter aircraft is the difference in muzzle velocities. At least one plane was equipped with a 105mm cannon … Although originally intended for use against surface ships, it was hoped the aircraft would proved itself a potent tank killer. I don't know about combat evidence, since an unhurt German pilot would have got away, and the RAF pilot couldn't be sure what damage he might have effected. Since the flight decks were being used the Japanese could not ready another strike to be launched. AM-72-149. I have not seen any, but, of course, I may just not know. I am not sure what you mean by "demanded the removal". I am referring to the .60 caliber program/s and the high velocity .50 cal programs ( most of which would require new guns) and the multiple programs to boost the rate of fire of the basic M2 Browning which finally bore fruit in the spring of 1945. The 20 mm caliber is a common firearm bore diameter, typically used to distinguish smaller-caliber weapons, commonly called "guns", from larger-caliber "cannons" (e.g. For instance the .50 Desert Eagle also fires a 12,7 mm diameter round as any weapon chambered in .50 BMG, and still its muzzle energy is a few magnitudes less. I used to think cannons shot explosive rounds and guns shot kinetic energy rounds, but I saw a show on TV comparing .303 to 20mm and the 20mm seemed to be shooting kinetic energy rounds. whats the difference between the 50 cal machine gun and a 20mm cannon ? The two cannons, Two 1/18 scale Browning 1919A4 30 cal Machine Guns $ 11.24 by WarrenHudson. 1/35 IJN Type 93 13mm Tripod Twin Mount $ 9.97 by Game Miniatures. Some fighter jets use 23mm, 27mm, or 30mm guns. The four .50 caliber machine guns and one 20mm cannon of the standard P-38 were deleted for a … They will have different points of aim, except at relatively close range. The Gatling gun had exceeded that rate of fire in 1880. Twenty-millimeter-caliber weapons are generally not used to target individual soldiers, but against targets such as vehicles, buildings, or aircraft. between 16-20x forward facing .50 caliber machine guns, or 1x 37mm cannon and 14x .50s, or 2x 37mm cannons and 10x .50s. My opinion is that the American military decisions concerning the 50s was correct and, for the most part, the American weapons systems had excellent results for the jobs they were intended. This was the reason for the RAF sticking with 4 x .303", rather than having 2 x (slower-firing) .5", coupled with their cannon, since the average pilot wasn't a very good shot, and, in a deflection shot (always the most difficult) the "scatter-gun" approach was more likely to disable the pilot; the change of mind came with the introduction of the gyro gunsight, which made even ordinary pilots into crack-shots, so the "E" wing was born, but not until 1944. four beresins have the weight of four BMG but can use 2cm ammo boxes. The M-14 was a joke in full automatic fire and suffered from a number of problems in it's "intended" role even if it performed many other roles/duties well, we are still living with the problems of the M-16. We all have seen combat film of P47s and other US AC destroying locomotives in Europe and Japan with 50s. $249.95 VIEW DETAILS. This made it an ideal cannon for use onboard fighters, replacing the multiple 7.62 mm (.30 caliber) machine guns commonly used in military aircraft in the 1930s. 50mm Bushmaster Cannon - photo by Kris Osborn. As far as I have read, neither the AAF, Navy, or British fighting forces demanded the removal of 50s and the installation of the cannons. note because of rechambering option to 2cm, trumping the BMG on weight/performance ratio). F6F-5 Hellcat - late armament (covered .50 cal Browning barrels) Air Master 1:48. 20mm is the smallest caliber that is practical to load with a bursting charge. W ith its two engines mounted on twin booms and the pilot's separate nacelle in between, the P-38 looked like no other plane.