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Gun laying is the process of aiming an artillery piece or turret, such as a gun, howitzer, or mortar, on land, at sea, or in air, against surface or aerial targets. It may be laying for either direct fire , where the gun is aimed directly at a target within the line-of-sight of the user, or by indirect fire , where the gun is not aimed directly ...
The first mention of radar in the UK was a 1930 suggestion made by W. A. S. Butement and P. E. Pollard of the Army War Office's Signals Experimental Establishment (SEE). [1] [2] They proposed building a radar system for detecting ships to be used with shore batteries, and went so far as to build a low-power breadboard prototype using pulses at 50 cm wavelength (600 MHz).
An essential requirement of an aiming point is that it be at a sufficient distance from the gun using it. The reason for this is that, while firing, guns, particularly towed guns, move back a short distance – perhaps a foot, as their spades embed and may move more in soft ground.
Gun laying is based on calculations of the range and azimuth of the target relative to the gun position, without the need for ranging shots (or adjusting) or even observation of the target. Ranging shots take time, and alert the enemy both to the presence and position of the guns, and to the likelihood of an attack.
The Automatic Gun-Laying Turret (AGLT), also known as the Frazer-Nash FN121, was a radar-directed, rear gun turret fitted to some British bombers from 1944. AGLT incorporated both a low-power tail warning radar and fire-control system , which could detect approaching enemy fighters , aim and automatically trigger machine guns – in total ...
The SCR-584 (short for Set, Complete, Radio # 584) was an automatic-tracking microwave radar developed by the MIT Radiation Laboratory during World War II.It was one of the most advanced ground-based radars of its era, and became one of the primary gun laying radars used worldwide well into the 1950s.
Actually using it for gun laying, like the Würzburg radar developed for the German army, was initially not a priority for the Kriegsmarine. [ 3 ] The two systems were generally similar, although the early Seetakt systems worked on a 50 cm wavelength (600 MHz), while Freya was designed for much longer ranges and used a 2.5 m wavelength that ...
Radar, Gun Laying, Mark III, or GL Mk.III for short, was a radar system used by the British Army to directly guide, or lay, anti-aircraft artillery (AA). The GL Mk. III was not a single radar, but a family of related designs that saw constant improvement during and after World War II.