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Avro Lancaster – How the Bombsight Mk XIV Worked
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In this video, we shall cover the Bombsight Mk.XIV within the Avro Lancaster Bomber. We shall also be covering the Bombsight’s installations within the Handley Page Halifax, Short Stirling and the Vickers Wellington Bombers. • • As always, we shall be referring to wartime Air Ministry Manuals. • • I’d like to offer my special thanks to the following: • • New Zealand Bomber Command Association • • Halifax 57 Rescue • • Join us, as we take a tour of the Bombsight XIV’s construction and use. As we embark on a journey aimed at promoting UK Aviation Heritage. • • Textual extracts from Air Ministry Air Publications are Crown Copyright and transcribed with the kind permission of the National Archives, London. All colour diagrams are based on original Air Ministry Air Publications mono illustrations and transcribed into colour by Bryan Atkinson with the permission of the National Archives, London. • • Thanks must also be given to the following superb organisations for their kind support when Bryan Atkinson originally developed The Lancaster Explored PC CD-ROM back in 2004, all are listed below and are included once again in this series of videos. • • Lancaster B.Mk.I, PA474. The Battle of Britain Memorial Flight. • Lancaster B.Mk.I, R5868. Royal Air Force Museum, London. • Lancaster B. Mk.III, DV372. Imperial War Museum. • Lancaster B.Mk.X, KB889. Imperial War Museum, Duxford. • Lancaster B.Mk.VII, NX611. Lincolnshire Aviation Heritage Centre. • The Norman Groom Jeremy Hall Lancaster Nose Sections. • • The Rolls-Royce Heritage Trust. • The National Archives, London. • • • The material contained in this video is intended for historical, reference and entertainment value only, and is not to be construed as usable for aircraft or component restoration, maintenance, or use. • • • Consort for Brass - Classical Rousing by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 licence. https://creativecommons.org/licenses/... • Source: http://incompetech.com/music/royalty-... • Artist: http://incompetech.com/ • • Devon S A (Flt Lt), Royal Air Force official photographer, Public domain, via Wikimedia Commons • • Short Stirling • San Diego Air Space Museum Archives, Public domain, via Wikimedia Commons • • Mosquito Bomber • Royal Air Force official photographer, Public domain, via Wikimedia Commons • • Bomb Aimer • Royal Air Force official photographer, No 106 Squadron RAF, Public domain, via Wikimedia Commons • • Vickers Wellington • Royal Air Force official photographer, Trievnor J (Fg Off), Public domain, via Wikimedia Commons • • Handley Page Halifax • Royal Air Force official photographer, Hensser H (Mr), Public domain, via Wikimedia Commons • • #lancasterbomber #avrolancaster #ukaircraftexplored • • Table of Contents: • • 00:00 - Introduction • 00:43 - An Overview • 02:02 - The Simplicity in using the Bomb Sight • 02:48 - A General Look at the System • 03:29 - The Sighting Head • 03:34 - The Graticule • 05:33 - The Sighting Head Components • 06:13 - The Collimator • 08:01 - How the Sighting Plane is Stabilised • 08:55 - The Bubble Level • 09:11 - The Reflector Protective Cover • 09:28 - The Switch Box • 10:10 - Sighting Head and Mounting Bracket • 10:26 - The Levelling Card • 10:33 - Course Indicator Diagram • 10:45 - The Sighting Head Gyro • 10:53 - Exploded View of Sighting Head • 11:03 - The Computor Unit • 11:38 - Setting the Computor Unit • 12:09 - Levelling Card Location • 12:41 - Using the D.R.Compass • 13:23 - How the Bombsight XIV Functioned • 14:23 - How the Computor Unit Worked • 14:42 - The Computor Mechanism • 16:17 - The Height Mechanism • 16:28 - The Air Speed Mechanism • 16:39 - The Wind Mechanism • 16:51 - The Drift Mechanism • 17:03 - The Ground Speed Mechanism • 17:14 - The Sighting Angle Mechanism • 17:26 - The Ideal Bombing Angle • 18:15 - The Terminal Velocity Mechanism • 18:39 - The Computor Unit Construction • 19:22 - The Computor Unit Mounting Frame • 19:56 - The Control Knobs • 20:22 - The Altas Unit • 20:47 - The Bellows • 21:00 - The Air Drier • 21:10 - The Bomb Sight Cock • 21:15 - The Circuit Diagram • 21:25 - The Avro Lancater Installation • 22:01 - The Handley Page Halifax Installation • 22:37 - The Short Stirling Installation • 22:59 - The Vickers Wellington Installation • 23:36 - A Conclusion • 24:30 - Special Thanks
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