{"product_id":"vintage-raf-dead-reckoning-computer-mk-4a-air-navigation-flight-calculator","title":"Vintage RAF Dead Reckoning Computer Mk 4A Air Navigation Flight Calculator","description":"\u003cp data-start=\"135\" data-end=\"539\" class=\"PDq2pG_selectionAnchorContainer\"\u003eAn original \u003cstrong data-start=\"147\" data-end=\"202\"\u003eRoyal Air Force (RAF) Dead Reckoning Computer Mk 4A\u003c\/strong\u003e, a classic British aviation navigation instrument used by RAF aircrew for calculating true airspeed, wind correction, headings, and navigation during flight. Constructed from metal and printed plastic with precision rotating dials and sliding scales, this analogue flight computer is an excellent piece of Cold War-era aviation history.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"541\" data-end=\"778\"\u003eManufactured by \u003cstrong data-start=\"557\" data-end=\"615\"\u003eThe London Name Plate Mfg. Co. Ltd., London \u0026amp; Brighton\u003c\/strong\u003e, this authentic RAF navigation computer makes an ideal addition to any collection of military aviation equipment, RAF memorabilia, or vintage cockpit instruments.\u003c\/p\u003e\n\u003cp data-start=\"541\" data-end=\"778\"\u003e\u003cstrong\u003eCondition: \u003c\/strong\u003eGood vintage pre-owned condition with age-related wear throughout. The calculator remains complete with freely rotating dials and sliding scale. There are surface scratches, marks, light staining, minor edge wear, and age-related discolouration consistent with military use and storage. Printing remains clear and legible. Please study the photographs carefully as they form part of the description.\u003c\/p\u003e\n\u003cp data-start=\"541\" data-end=\"778\"\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"793\" data-end=\"1229\"\u003e\n\u003cli data-section-id=\"1lf2lf9\" data-start=\"793\" data-end=\"845\"\u003eOriginal British RAF Dead Reckoning Computer Mk 4A\u003c\/li\u003e\n\u003cli data-section-id=\"8ib24l\" data-start=\"846\" data-end=\"898\"\u003eUsed for aerial navigation and flight calculations\u003c\/li\u003e\n\u003cli data-section-id=\"130f1pw\" data-start=\"899\" data-end=\"962\"\u003eCalculates true airspeed, wind correction, heading, and drift\u003c\/li\u003e\n\u003cli data-section-id=\"rqwyu1\" data-start=\"963\" data-end=\"999\"\u003eRotating circular calculating disc\u003c\/li\u003e\n\u003cli data-section-id=\"1yuszd8\" data-start=\"1000\" data-end=\"1032\"\u003eSliding gridded plotting scale\u003c\/li\u003e\n\u003cli data-section-id=\"1tpcbmk\" data-start=\"1033\" data-end=\"1074\"\u003eMarked \"Computer Dead Reckoning Mk. 4A\"\u003c\/li\u003e\n\u003cli data-section-id=\"1rkiweq\" data-start=\"1075\" data-end=\"1098\"\u003eReference No. 6B\/2645\u003c\/li\u003e\n\u003cli data-section-id=\"tjs50a\" data-start=\"1099\" data-end=\"1152\"\u003eManufactured by The London Name Plate Mfg. Co. Ltd.\u003c\/li\u003e\n\u003cli data-section-id=\"1k1bgan\" data-start=\"1153\" data-end=\"1185\"\u003eMetal and plastic construction\u003c\/li\u003e\n\u003cli data-section-id=\"1unjk1v\" data-start=\"1186\" data-end=\"1229\"\u003eLikely mid-20th century (Cold War period)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1231\" data-end=\"1242\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul data-start=\"1243\" data-end=\"1292\"\u003e\n\u003cli data-section-id=\"18p56ne\" data-start=\"1243\" data-end=\"1257\"\u003eLength: 28cm\u003c\/li\u003e\n\u003cli data-section-id=\"uca8ea\" data-start=\"1258\" data-end=\"1273\"\u003eWidth: 12.5cm\u003c\/li\u003e\n\u003cli data-section-id=\"13mhsrl\" data-start=\"1274\" data-end=\"1292\"\u003eThickness: 0.5cm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Vantrocol","offers":[{"title":"Default Title","offer_id":54352955736406,"sku":null,"price":29.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/2783\/2406\/files\/82.png?v=1782415429","url":"https:\/\/vantrocol.com\/products\/vintage-raf-dead-reckoning-computer-mk-4a-air-navigation-flight-calculator","provider":"Vantrocol","version":"1.0","type":"link"}