A bombsight is a device used by
bomberaircraft to assist in the task of accurately dropping bombs on a ground target. Although it could be as simple as a set of crosshairs, the term generally refers to more complicated devices that allow correction for various factors that affect the ballistic trajectory of the dropped ordnance. These include, but are not limited to, the altitude, airspeed, and heading of the aircraft, the wind, and the aerodynamic properties of the specific bomb.
The first truly useful bombsight was the Drift Sight Mk 1A, which was introduced on the
Handley Page O/400heavy bomber of World War I. While it was not as effective as later bombsights, it was an improvement in sighting equipment of the period, as it took into account the aircraft's altitude and speed, wind velocity, and drift. [The Encyclopedia of Military Aircraft, 2006 Edition, Jackson, Robert ISBN 1-40542-465-6 Copyright © Parragon Publishing 2002]
Norden bombsight, used by the Allies in World War II, brought all of these factors together and was a major technical achievement that for the first time enabled high-precision, high-altitude bombing under certain conditions.
Beginning in the 1950s, more modern bombsights replaced the
analog computerin the Norden with electronic ones, and became increasingly integrated into the weapons system of the host aircraft. They may be controlled by the pilot directly and provide information through the heads-up displayor a video display on the instrument panel. The specific functions of the bombsight are further blurred as bombs with in-flight guidance, such as laser-guided bombs or those using GPSreplace "dumb" gravity bombs.
A bombsight plays a major role in the
Basil Rathbone- Nigel Brucefilm " Sherlock Holmes and the Secret Weapon".
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Look at other dictionaries:
bombsight — ombsight n. 1. a sighting device in an aircraft for aiming bombs. [WordNet 1.5] … The Collaborative International Dictionary of English
bombsight — [bäm′sīt΄] n. a complex instrument on a bomber which can determine when to drop a bomb in order to strike a target … English World dictionary
bombsight — noun Date: 1917 a sighting device for aiming bombs … New Collegiate Dictionary
bombsight — /bom suyt /, n. Mil. (in an aircraft) an instrument for aiming bombs at a target, esp. a device that can assume complete control of the aircraft during a bombing run, can automatically compensate for speed, winds, etc., and can guide the release… … Universalium
bombsight — noun A device which allows bombs to be accurately dropped from moving aircraft so as to hit a desired target … Wiktionary
bombsight — n. instrument that automatically directs a bomb at its target (in aircraft) … English contemporary dictionary
bombsight — noun a device used in an aircraft for aiming bombs … English new terms dictionary
bombsight — bomb•sight [[t]ˈbɒmˌsaɪt[/t]] n. mil a device installed in an aircraft for guiding the release of bombs • Etymology: 1915–20 … From formal English to slang
bombsight — /ˈbɒmsaɪt/ (say bomsuyt) noun an aiming instrument used to tell when to drop a bomb from an aircraft so that it will hit a specified target … Australian English dictionary
bombsight — noun a sighting device in an aircraft for aiming bombs • Hypernyms: ↑sights … Useful english dictionary