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The Model 12 variants—12-1, 12-2, and 12-3—used a narrower hammer [4] and had an aluminum grip frame that was 0.08-inch (2.0 mm) narrower than the standard steel K-frame. [1] The final version, the Model 12-4, used the standard frame dimension [5] of the other K-frames. It also featured a rounded butt. Pre-Model 12: predates model number ...
The British measured boost pressure as lbs./sq.inch (or psi) above a nominal value of atmospheric pressure at sea level. A reading of +6 meant that the air/fuel mix was being compressed by a supercharger blower to 20.7 (rounded figure) psi before entering the engine; +25 meant that the air/fuel mix was being compressed to 39.7 psi – 14.7 psi ...
The Remington Model 12 is a slide-action takedown rifle designed by John Pedersen [1] and produced by the Remington Arms Company from 1909 to 1936. [ 2 ] The Model 12 is chambered in .22 Caliber Rimfire and accepts Short , Long , and Long Rifle cartridges, with a tubular magazine capacity of 14, 11, and 10 rounds respectively.
The .22 Spitfire is an American wildcat rifle cartridge developed by Col. Melvin M. Johnson. It was originally named the MMJ 5.7mm [ 1 ] by its designer and is also known in the U.S. as the 5.7mm Johnson , the Johnson MMJ 5.7mm Spitfire , and the .22 Johnson , (or 5.7×33mm internationally).
2 × 20 mm Hispano Mk II cannon with 120 rounds-per-gun (rpg) in the outer bays combined with 2 × 0.5-inch (12.7 mm) Browning M2 machine guns, with 250 rpg in the inner bays. With the relocation of the Hispano to the outer gun bay the blisters covering the feed motors were moved outboard on the gun bay doors.
The basic F.37/34 (as Spitfire was still then known) wing and undercarriage were mated to a modified fuselage which provided room for a gunner and a remote control four-gun turret (originally armed with .303 Brownings, later with Lewis light machine guns.) Other modifications included a cooling system mounted in a chin radiator housing.
Initially Lazzeroni rifles were made using Remington Model 700 actions, but due to feeding problems and concerns about the action's strength, the company subsequently used a specially modified McBros action with a custom magazine assembly. [1] More recently, the company has used specially made SAKO actions. [1]
The instrument panel of a Spitfire IX showing the Mk IID Gyro reflector gunsight. To set range the dial adjusts the reticle size to match target wingspan. Currently set to the Junkers Ju 88, it ranged in size from the large Fw 200 Condor to the small Messerschmitt Bf 109.