{"product_id":"safetech-e6b-flight-computer-fdf-57b","title":"Safetech E-6B Flight Computer FDF-57-B Mechanical Aviation Slide Rule Wind Correction Calculator w\/ Case 9x6 Vintage Pilot Tool","description":"\u003cp data-end=\"366\" data-start=\"214\"\u003eClassic Safetech E-6B flight computer (FDF-57-B) with wind correction + circular slide rule—an essential pilot calculator with protective case included.\u003c\/p\u003e\n\u003ch2 data-end=\"385\" data-start=\"373\"\u003eDetails\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli data-end=\"490\" data-start=\"388\"\u003e\n\u003cstrong data-end=\"396\" data-start=\"388\"\u003eEra:\u003c\/strong\u003e \u003cstrong data-end=\"422\" data-start=\"397\"\u003eMid–late 20th century\u003c\/strong\u003e (\u003ca title=\"classic\" href=\"https:\/\/myreadingvintage.com\/collections\/vintage-memorabilia\"\u003eclassic \u003c\/a\u003eanalog training tool era; exact year not marked in photos)\u003c\/li\u003e\n\u003cli data-end=\"567\" data-start=\"493\"\u003e\n\u003cstrong data-end=\"509\" data-start=\"493\"\u003eBrand\/Maker:\u003c\/strong\u003e \u003cstrong data-end=\"522\" data-start=\"510\"\u003eSafetech\u003c\/strong\u003e, Newtown, PA, U.S.A. (printed on instrument)\u003c\/li\u003e\n\u003cli data-end=\"631\" data-start=\"570\"\u003e\n\u003cstrong data-end=\"580\" data-start=\"570\"\u003eModel:\u003c\/strong\u003e \u003cstrong data-end=\"614\" data-start=\"581\"\u003eE-6B Computer Model: FDF-57-B\u003c\/strong\u003e  \u003c\/li\u003e\n\u003cli data-end=\"701\" data-start=\"634\"\u003e\n\u003cstrong data-end=\"643\" data-start=\"634\"\u003eType:\u003c\/strong\u003e mechanical \u003cstrong data-end=\"679\" data-start=\"655\"\u003eE-6B flight computer\u003c\/strong\u003e \/ aviation slide rule\u003c\/li\u003e\n\u003cli data-end=\"701\" data-start=\"634\"\u003e\n\u003cstrong data-end=\"1405\" data-start=\"1388\"\u003eColor\/finish:\u003c\/strong\u003e silver-toned metal\/printed grid with black markings; brown case with gold lettering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"734\" data-start=\"704\"\u003eFunctions (what it’s for):\u003c\/h3\u003e\n\u003col\u003e\n\u003cli data-end=\"773\" data-start=\"739\"\u003etime–speed–distance calculations\u003c\/li\u003e\n\u003cli data-end=\"812\" data-start=\"778\"\u003efuel burn \/ consumption planning\u003c\/li\u003e\n\u003cli data-end=\"855\" data-start=\"817\"\u003ewind correction angle + ground speed\u003c\/li\u003e\n\u003cli data-end=\"927\" data-start=\"860\"\u003etemperature\/altitude related computations (as laid out on the dial)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3 data-end=\"958\" data-start=\"930\"\u003eDesign  \u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"1032\" data-start=\"963\"\u003e\n\u003cstrong data-end=\"986\" data-start=\"963\"\u003eCircular slide rule\u003c\/strong\u003e side with rotating metal dial + rivets\/screws\u003c\/li\u003e\n\u003cli data-end=\"1146\" data-start=\"1037\"\u003e\n\u003cstrong data-end=\"1061\" data-start=\"1037\"\u003eWind correction grid\u003c\/strong\u003e side with “To Find Ground Speed \u0026amp; Wind Correction Angle” instructions printed at top\u003c\/li\u003e\n\u003cli data-end=\"1187\" data-start=\"1151\"\u003eNo batteries—works anywhere, anytime\u003c\/li\u003e\n\u003cli data-end=\"1281\" data-start=\"1190\"\u003e\n\u003cstrong data-end=\"1203\" data-start=\"1190\"\u003eIncluded:\u003c\/strong\u003e protective \u003cstrong data-end=\"1244\" data-start=\"1215\"\u003ebrown leather\/vinyl pouch\u003c\/strong\u003e stamped in gold \u003cstrong data-end=\"1281\" data-start=\"1261\"\u003e“SAFETECH, INC.”\u003c\/strong\u003e\u003cstrong data-end=\"1312\" data-start=\"1284\"\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMeasurements:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"1350\" data-start=\"1317\"\u003e\n\u003cstrong data-end=\"1330\" data-start=\"1317\"\u003eComputer:\u003c\/strong\u003e approx. \u003cstrong data-end=\"1350\" data-start=\"1339\"\u003e9\" x 6\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1385\" data-start=\"1355\"\u003e\n\u003cstrong data-end=\"1364\" data-start=\"1355\"\u003eCase:\u003c\/strong\u003e approx. \u003cstrong data-end=\"1385\" data-start=\"1373\"\u003e10\" x 6\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1509\" data-start=\"1491\"\u003e\u003cstrong data-end=\"1509\" data-start=\"1491\"\u003eSuggested uses\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli data-end=\"1548\" data-start=\"1512\"\u003eFlight training \/ ground school prop\u003c\/li\u003e\n\u003cli data-end=\"1616\" data-start=\"1551\"\u003eDesk display for an aviation office, library shelf, or pilot gift\u003c\/li\u003e\n\u003cli data-end=\"1680\" data-start=\"1619\"\u003eFilm\/TV prop, aviation history collection, aeronautical décor\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3 data-end=\"1701\" data-start=\"1687\"\u003eCondition\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"1769\" data-start=\"1704\"\u003eOverall vintage\/used condition consistent with real training use.\u003c\/li\u003e\n\u003cli data-end=\"1887\" data-start=\"1772\"\u003e\n\u003cstrong data-end=\"1781\" data-start=\"1772\"\u003eCase:\u003c\/strong\u003e visible surface wear\/scuffing and patina to the brown finish (photo-verified); gold stamp still readable.\u003c\/li\u003e\n\u003cli data-end=\"1980\" data-start=\"1890\"\u003e\n\u003cstrong data-end=\"1903\" data-start=\"1890\"\u003eComputer:\u003c\/strong\u003e shows typical handling wear; markings remain clear and legible in close-ups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2106\" data-start=\"1983\"\u003eNot tested for calibration\/accuracy beyond basic physical inspection; sold as a vintage tool\/collectible with visible wear.\u003c\/p\u003e\n\u003ch3 data-end=\"2135\" data-start=\"2113\"\u003eCollector’s Notes\u003c\/h3\u003e\n\u003cp data-end=\"2331\" data-start=\"2136\"\u003eThe E-6B is a true pilot classic—an “always works” navigation calculator that defined generations of flight training. Safetech models like this are especially collectible with the original pouch.\u003c\/p\u003e\n\u003cp data-end=\"2464\" data-start=\"2333\"\u003eReady to add a real piece of aviation training history to your shelf (or your flight bag)? \u003cstrong data-end=\"2464\" data-start=\"2424\"\u003eThis one’s ready for its next route.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eShelf-worthy vintage finds you can trust. Find Your Story.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eShipping + Trust (Reading Vintage standards)\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e∙Photo-verified condition (no surprises)\u003cbr\u003e∙Packed with our protective packaging standard\u003cbr\u003e∙Ships in 1 business day\u003cbr\u003e∙Free Shipping on $35+ (U.S. only)\u003c\/p\u003e\n\u003cdiv class=\"description\"\u003e\n\u003ch3\u003eDisclaimer\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003eAll items are vintage and may show signs of age, wear, or use consistent with their history. Photos show the exact condition of each piece—please review them carefully, as they are part of the description. \u003c\/p\u003e\n\u003cp\u003eWhile I do my best to capture colors accurately, your monitor or device screen may display colors slightly differently from the actual item.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Note:\u003c\/strong\u003e\u003cbr\u003eThese pieces come from estate collections and have been surface cleaned. You may wish to perform additional cleaning depending on your preference.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Orders $35+ Ship Free","offers":[{"title":"Default Title","offer_id":48183317496063,"sku":"B5-T15-2302","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2503\/7976\/files\/Classic_Safetech_E-6B_flight_computer_FDF-57-B.jpg?v=1771445230","url":"https:\/\/myreadingvintage.com\/products\/safetech-e6b-flight-computer-fdf-57b","provider":"Reading Vintage","version":"1.0","type":"link"}