{"product_id":"bell-aircraft-corporation-p-39-to-p-63-aircraft-blueprints-engineering-drawings","title":"Bell Aircraft Corporation P-39 to P-63 Aircraft Blueprints \u0026 Engineering Drawings","description":"\u003ch2\u003eBell Aircraft Corporation — P-39 Series \u0026amp; P-63 Series Aircraft\u003c\/h2\u003e\u003ch3\u003eIndex of Drawings on Microfilm — T.O. No. 01-110F-215\u003c\/h3\u003e\u003cp\u003ePublished by authority of the \u003cstrong\u003eCommanding General, Army Air Forces\u003c\/strong\u003e · \u003cstrong\u003e1 May 1944\u003c\/strong\u003e · Microfilm set correct to \u003cstrong\u003eOctober 4, 1943\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFrom the original Bell Aircraft Corporation manufacturing drawings, converted first to microfilm and now digitised in electronic format. This collection delivers over \u003cstrong\u003e11,500 airframe engineering drawing sheets\u003c\/strong\u003e extracted from \u003cstrong\u003e9 microfilm reels\u003c\/strong\u003e (16 rolls total, lettered A through R), covering the complete P-39 Series and P-63 Series aircraft families.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eThis set of drawings is not complete or exhaustive.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eDocument Structure — T.O. 01-110F-215\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSection I — Introduction:\u003c\/strong\u003e Instructions for use of microfilm indexes, associated equipment, and revision procedures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSection II — Numerical Index:\u003c\/strong\u003e Full drawing number cross-reference across all 16 rolls\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSection III — Alphabetical Index by Groups:\u003c\/strong\u003e Wing · Fuselage · Tubing · Engine · Power Plant · Fixed Equipment · Armament · Landing Gear\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eEngineering Legacy: P-39 Airacobra → P-63 Kingcobra\u003c\/h3\u003e\u003cp\u003eThe evolutionary line from the Bell P-39 Airacobra to the P-63 Kingcobra represents one of the most documented aerodynamic redesign cycles of World War II, driven by NACA wind tunnel testing at Langley Field and operational field data from multiple theatres.\u003c\/p\u003e\u003ch4\u003eAerodynamic \u0026amp; Airfoil Development\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eP-39 Drag Deficiencies:\u003c\/strong\u003e NACA full-scale tunnel testing revealed high zero-lift drag (C\u003csub\u003eD0\u003c\/sub\u003e) penalties from complex oil and coolant duct routing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP-63 Laminar Flow Wing:\u003c\/strong\u003e The second American production fighter (after the P-51 Mustang) to adopt an advanced NACA laminar-flow airfoil — reducing boundary-layer friction and delaying drag rise at high speed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExperimental Variants:\u003c\/strong\u003e Two P-63 airframes converted to Vee-tail configuration; the classified Bell L-39 tested 35° and 40° swept wings for early jet design research\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eEngine Technical Notes\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eP-39 — Allison V-1710 (single-stage):\u003c\/strong\u003e Absence of turbo-supercharger limited peak performance to below 15,000–17,000 ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP-63 — Allison V-1710-93 (two-stage mechanical supercharger):\u003c\/strong\u003e Restored high-altitude capability; 1,325 hp standard, up to 1,500 hp war emergency rating\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStability \u0026amp; Handling Studies\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCG Migration \u0026amp; Flat Spins:\u003c\/strong\u003e Rearward CG shift after ammunition depletion created dangerous flat-spin susceptibility on both types\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP-39 Empennage:\u003c\/strong\u003e Directional instability with 4-blade propellers forced reversion to 3-blade Aero-Products units\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP-63 Tail Redesign:\u003c\/strong\u003e Joint Bell\/NACA project produced an enlarged vertical fin, rudder, and horizontal tail to counter propeller torque and shifting CG\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003ePerformance Comparison Matrix\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMetric\u003c\/th\u003e\n\u003cth\u003eBell P-39Q Airacobra\u003c\/th\u003e\n\u003cth\u003eBell P-63A Kingcobra\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine\u003c\/td\u003e\n\u003ctd\u003eAllison V-1710-85 (single-stage)\u003c\/td\u003e\n\u003ctd\u003eAllison V-1710-93 (two-stage supercharged)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Output\u003c\/td\u003e\n\u003ctd\u003e~1,200 hp\u003c\/td\u003e\n\u003ctd\u003e1,325 hp (1,500 hp war emergency)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Speed\u003c\/td\u003e\n\u003ctd\u003e385–389 mph at 11,000 ft\u003c\/td\u003e\n\u003ctd\u003e410–421 mph at 24,100 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWingspan\u003c\/td\u003e\n\u003ctd\u003e34 ft 0 in\u003c\/td\u003e\n\u003ctd\u003e38 ft 4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmpty Weight\u003c\/td\u003e\n\u003ctd\u003e~5,600 lbs\u003c\/td\u003e\n\u003ctd\u003e6,800 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGross Weight\u003c\/td\u003e\n\u003ctd\u003e~7,600–8,200 lbs\u003c\/td\u003e\n\u003ctd\u003e8,800–10,500 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArmament\u003c\/td\u003e\n\u003ctd\u003e1× 37mm T9 cannon, 2× .50 cal nose, 4× .30\/.50 cal wings\u003c\/td\u003e\n\u003ctd\u003e1× 37mm M4\/M10 cannon, 4× .50 cal M2 Browning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Built\u003c\/td\u003e\n\u003ctd\u003e9,588 units\u003c\/td\u003e\n\u003ctd\u003e3,303 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eThe Soviet Lend-Lease Connection\u003c\/h3\u003e\u003cp\u003eOver \u003cstrong\u003e4,700 P-39s\u003c\/strong\u003e and roughly \u003cstrong\u003e70% of all P-63s produced\u003c\/strong\u003e were delivered to the Soviet Air Force via the Alaska-Siberia (ALSIB) ferry route. Operating primarily below 15,000 ft on the Eastern Front, both types excelled in low-altitude dogfighting and ground attack, with their 37mm nose-hub cannons proving devastating against enemy aircraft and light armour.\u003c\/p\u003e\u003ch4\u003eUnique Variants Documented\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRP-63 Pinball:\u003c\/strong\u003e All armament removed; over one ton of armour added. Live frangible bullets fired by trainee gunners — hits registered by a light in the propeller hub\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBell L-39 Swept-Wing Research (1946):\u003c\/strong\u003e Two surplus P-63s modified for the U.S. Navy with 35° swept wings — data directly influenced early American jet fighter design and the Bell X-2\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eSurviving Airframes\u003c\/h3\u003e\u003cp\u003eOf the 9,588 P-39s and 3,303 P-63s built, only approximately \u003cstrong\u003e7 examples remain airworthy worldwide\u003c\/strong\u003e — roughly 4 P-39s and 4 P-63s — maintained by warbird preservation groups including the Commemorative Air Force, Military Aviation Museum (Virginia Beach), CAF Airbase Georgia, and Yanks Air Museum.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cem\u003eThis is an archival, static-copy edition fixed at its original publication date. Intended for historical reference, flight simulation, museum restoration, and educational use only. Not approved for active airworthiness maintenance under FAA 14 CFR § 43.13, EASA Part-M, or equivalent international regulations. Operators of active aircraft must use current, revision-controlled publications from the Type Certificate holder or an authorized distributor.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eLiving Collections with Free Lifetime Updates — Please review our Disclaimer and Export Notice before purchasing.\u003c\/em\u003e\u003c\/p\u003e","brand":"Online Aviation Library","offers":[{"title":"Default Title","offer_id":53580043977051,"sku":null,"price":95.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4788\/3867\/files\/bell-banner-b-r4d-style-info-box.png?v=1783839437","url":"https:\/\/onlineaviationlibrary.com\/products\/bell-aircraft-corporation-p-39-to-p-63-aircraft-blueprints-engineering-drawings","provider":"Online Aviation Library","version":"1.0","type":"link"}