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The Mark 1, and later the Mark 1A, Fire Control Computer was a component of the Mark 37 Gun Fire Control System deployed by the United States Navy during World War II and up to 1991 and possibly later. It was originally developed by Hannibal C. Ford of the Ford Instrument Company [1] and William Newell.
A mouse trap type electrical impact fuze, 1 second delay, detonation sets off filler M228 M69 Training fuze with functional fuze to train on the 4–5 second delay C12 M25/A1/A2 Integral detonating fuze, 1.4–3 second delay, detonator bursts body scattering agent M200/A1 M6/A1, M7, M8, M14, M16, M18 A mouse trap type igniting fuze.
The MK 1 is a time-fused fragmentation grenade and has 32 serrations on it. To start the fuse, the user has to pull the safety pin, then push off the cap on top of the grenade. Right before throwing, the user has to move the switch on the lever away from the grenade in order to start the fuse.
[1] [2] The Mk 34 GWS was developed to improve the Arleigh Burke -class destroyer's ability to use the Mk 45 gun against a variety of threats. [ 2 ] It is different from previous gun fire-control systems in that it was developed under a one-system concept and is a fully integrated subsystem of Aegis.
Fitted with the standard army Machine Fuze Setter No 10, these guns had a rate of fire of 10 rds/min and a maximum height of 50,000 ft, with an effective height of 36,000 ft. [18] Mark 1A was a mild steel turret for anti-aircraft use only, Mk 1B was an armoured turret for anti aircraft and coast defence use. The gun was designated Mk 2.
Figure 1: The Ford Mk 1 Ballistic Computer. The name "rangekeeper" began to become inadequate to describe the increasingly complicated functions of rangekeeper. The Mk 1 Ballistic Computer was the first rangekeeper that was referred to as a computer. Note the three pistol grips in the foreground, which are the firing keys of the main guns.
Astra Mk-1 fired from Su-30MKI. Preliminary work on Astra Mk-1 had begun by 1990 with the completion of a pre-feasibility study. [28] It was revealed to the public for the first time at Aero India 1998. [29] It was described as an elongated Matra Super 530D with a smaller diameter in front of the wings. [30]
The weapon was produced in two models; the enhanced radiation (ERW) W79 Mod 0 and fission-only W79 Mod 1. Both were plutonium -based linear-implosion nuclear weapons . The Mod 0 was a variable yield device with three yields, ranging from 100 tons of TNT (420 GJ ) up to 1.1 kt (4.6 TJ ) and an enhanced- radiation mode which could be turned on or off