On 4 June 1940, the date of the Winston Churchill “fight on the beaches” speech, the U.S. This particular problem was not solved until the adoption of the constant-speed propeller, which wasuncommon until the late 1930s. However, such harmony would obviously disappear as soon as the engine slowed down or speeded up.
Theoretically, it was possible to achieve an ideal match between the propeller rpm and gun’s natural RoF, so that the gun was not slowed down at all. The RoF of a synchronised gun tended to be rather erratic because it varied with propeller speed. “What was the rate of fire after the Swibelius conversion?”Ībove article states that generally for synchronization gears mileage might vary.
This make it easily adaptable for various aeroplanes. hydrosonic means it used sound wave in liquid for signal transmission, rather than pulling/pushing rod xor torque rod. name ending with “o” and without trailing comma. Use name Constantinesco-Colley hydrosonic gear alias CC i.e. “This article misnames the synchronizer system, which was “Contantinescu,”” 303 Vickers and Lewis guns, and some Colt-Browning and later Marlin guns seemed to have been supplied to the British Commonwealth in. Supposition: Marked “US 30 cal” because some US and French WWI aircraft were equipped with. 303 Canadian Colt-Browning for better accuracy than the Vickers? McBride’s WWI memoir “A Rifleman Went to War,” in which he praises the ground-service. Questions: What was the rate of fire after the Swibelius conversion? Was this the first automatic tilting-bolt firearm? What else used tilting bolts between the 6mm Remington-Lee and this gun? Who else is aware of H.W. This article misnames the synchronizer system, which was “Contantinescu,” originally adopted by the British and still used for cowl-mounted aircraft MGs into WWII. M, for the detailed view of this genuinely and undeservedly forgotten weapon.įor more information, some of which contradicts Mr. This video was done with he best set of facts I was able to find, and I hope it is not wrong in any substantial area! The Marlin 1917 machine gun is one of the least appreciated and understood of American military machine guns, and detailed information on them is quite sparse. None of these reached Europe in time to see service during the war, though.
At the very end of the war, the Marlin was chosen for use in American light tanks, and 2,646 were converted for that purpose by installing Lewis-type barrel cooling shrouds and flash hiders. In 1918, a new design of hydraulic synchronizer was adopted, resulting in a new designation of 8 MG. At some point the heavy barrel was replaced with a thinner, smooth profile barrel and the cocking handle changed from a loop to a simple “L” handle. This, and its closed-bolt firing, made it a candidate for synchronized aircraft use.Īfter some further revisions to improve extraction, the gun was designated the 7 MG (model 1917) by the US, and some 38,000 were ordered.
Marlin (which reorganized to become Marlin-Rockwell in 1916) had a talented Swedish designer named Carl Gustav Swebelius who substantially modernized the design by redesigning it to use a straight gas piston instead of the original swinging lever. Colt, however, had a lot of other larger orders to fill, and so in 1914 it arranged to subcontract the 1895 pattern gun to Marlin. It was not the most modern gun around by then, but it was available – and that was the most important feature for many potential buyers. John Browning’s original Model 1895 gas-lever machine gun was still in production by Colt when World War One broke out.
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