{"product_id":"boeing-model-367-377-c-97-kc-97-stratocruiser-documentation-collection","title":"Boeing Model 367\/377 Family – Primary-Source Technical Documentation Collection","description":"\u003ch3\u003eBoeing Model 367\/377 Family — Primary-Source Technical Documentation Collection\u003c\/h3\u003e\n\u003cp\u003eThe Boeing Model 367\/377 family — encompassing the C-97 Stratofreighter, KC-97 Stratotanker, and B.377 Stratocruiser — represents one of the most consequential aircraft lineages of the mid-twentieth century. Structurally rooted in the B-29 Superfortress wing, tail, and landing gear, these aircraft introduced a radical pressurized \"double-bubble\" fuselage capable of handling massive cargo payloads and transoceanic passenger operations. This collection brings together \u003cstrong\u003e19 primary-source technical documents\u003c\/strong\u003e spanning the full operational arc of the family — from the original XC-97 prototype through the Cold War KC-97L hybrid jet-piston tanker and the civil B.377 Stratocruiser as operated by BOAC, Pan American, United Air Lines, and American Overseas Airlines.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eAerodynamic Configuration\u003c\/h3\u003e\n\u003cp\u003eThe intersecting circular lobes of the double-bubble fuselage required an internal floor tie-beam to handle differential pressure forces. The massive vertical cross-section increased parasitic drag compared to the B-29, offset by clean wing-to-fuselage fillets and an extended nose contour. Initial XC-97 testing revealed severe directional instability, resolved by adopting the taller fin and rudder of the B-50 Superfortress — a modification that introduced a persistent crosswind weathercocking tendency noted in Air National Guard and SAC flight logs. High-gross-weight takeoffs relied on massive Fowler-type trailing-edge flaps on the Boeing 117 high-aspect-ratio wing inherited from the B-29.\u003c\/p\u003e\n\u003ch3\u003eEngine \u0026amp; Propulsion\u003c\/h3\u003e\n\u003cp\u003eFour \u003cstrong\u003ePratt \u0026amp; Whitney R-4360 Wasp Major\u003c\/strong\u003e 28-cylinder, four-row radial engines produced between 3,250 and 3,500 hp each, driving Hamilton Standard constant-speed hollow-steel core propellers. The tightly cowled installation suffered chronic cooling deficiencies: rear cylinder rows overheated during low-airspeed high-power climbs, producing exhaust valve failures, uncontained engine fires, and high mid-flight shutdown rates. Propeller overspeed incidents — occasionally resulting in blade separation and pressurized fuselage penetration — were a documented hazard on early B.377 and C-97 operations.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eKC-97L\u003c\/strong\u003e introduced two \u003cstrong\u003eGeneral Electric J47\u003c\/strong\u003e turbojet engines in underwing pods to close the speed gap with receiving B-47 Stratojet bombers, creating a hybrid dual-fuel architecture: AVGAS for the radials, JP-4 for the turbojets and refueling reserves.\u003c\/p\u003e\n\u003ch3\u003ePerformance Data\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eMetric\u003c\/th\u003e\n\u003cth\u003eB.377 Stratocruiser\u003c\/th\u003e\n\u003cth\u003eC-97G Stratofreighter\u003c\/th\u003e\n\u003cth\u003eKC-97L Stratotanker\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Speed\u003c\/td\u003e\n\u003ctd\u003e351 mph (565 km\/h)\u003c\/td\u003e\n\u003ctd\u003e375 mph (603 km\/h)\u003c\/td\u003e\n\u003ctd\u003e400 mph (644 km\/h)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCruising Speed\u003c\/td\u003e\n\u003ctd\u003e301 mph (484 km\/h)\u003c\/td\u003e\n\u003ctd\u003e260 mph (418 km\/h)\u003c\/td\u003e\n\u003ctd\u003e300 mph (482 km\/h)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eService Ceiling\u003c\/td\u003e\n\u003ctd\u003e32,000 ft (9,754 m)\u003c\/td\u003e\n\u003ctd\u003e35,000 ft (10,668 m)\u003c\/td\u003e\n\u003ctd\u003e30,000 ft (9,144 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Takeoff Weight\u003c\/td\u003e\n\u003ctd\u003e148,000 lbs (67,131 kg)\u003c\/td\u003e\n\u003ctd\u003e175,000 lbs (79,378 kg)\u003c\/td\u003e\n\u003ctd\u003e175,000 lbs (79,378 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperational Range\u003c\/td\u003e\n\u003ctd\u003e4,200 miles (6,760 km)\u003c\/td\u003e\n\u003ctd\u003e4,300 miles (6,920 km)\u003c\/td\u003e\n\u003ctd\u003e2,300 miles (3,700 km)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eHandling, Stability \u0026amp; Mission Studies\u003c\/h3\u003e\n\u003cp\u003eThe KC-97's clean stall speed was dangerously close to the maximum slow-flight boundary of receiving jet fighters, requiring crews to perform the \"\u003cstrong\u003etobogganing\u003c\/strong\u003e\" maneuver — a coordinated shallow descent glide to artificially increase airspeed during fuel offload. Double power-unit failure on a single wing at maximum gross weight rendered level flight virtually impossible, requiring immediate descent and emergency landing. All primary flight controls were purely mechanical and cable-driven with aerodynamic balance tabs; at high speeds, control forces scaled exponentially, making extended turbulent flight physically exhausting.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eDocuments in This Collection (19 Titles)\u003c\/h3\u003e\n\u003ch4\u003eCivil — Boeing B.377 Stratocruiser\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eD-8341\u003c\/strong\u003e — Pilot's Handbook of Flight Operating Instructions, Model 377-10-34, \u003cem\u003eUnited Air Lines, Inc.\u003c\/em\u003e — Revised 20 February 1950\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eD-8345\u003c\/strong\u003e — Pilot's Handbook of Flight Operating Instructions, Model 377-10-38, \u003cem\u003eAmerican Overseas Airlines, Inc.\u003c\/em\u003e — 15 April 1949, Revised 20 January 1950\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePilot's Handbook\u003c\/strong\u003e — Boeing Model 377, \u003cem\u003eBOAC \/ SAS\u003c\/em\u003e variant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePilot's Handbook\u003c\/strong\u003e — Boeing Model 377, \u003cem\u003eBOAC\u003c\/em\u003e (second edition)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintenance Handbook, Part 1\u003c\/strong\u003e — Boeing Model 377 Stratocruiser\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eMilitary — C-97 \/ KC-97 \/ VC-97 \/ HC-97 \/ YC-97J Series\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eD-6001\u003c\/strong\u003e — Pilot's Handbook of Flight Operating Instructions, \u003cem\u003eXC-97 Airplane\u003c\/em\u003e (RESTRICTED, declassified)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eD-7490\u003c\/strong\u003e — Pilot's Handbook of Flight Operating Instructions, \u003cem\u003eYC-97 Airplane\u003c\/em\u003e, Model 367-5-5, Wright R-3350-57 engines, S\/N 45-59587 to 45-59592 — 15 January 1947 (RESTRICTED, declassified)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAN 01-20CAE-1\u003c\/strong\u003e — Handbook of Flight Operating Instructions, \u003cem\u003eVC-97D Aircraft\u003c\/em\u003e — 15 June 1951 (RESTRICTED, declassified)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAN 01-20CAG-1\u003c\/strong\u003e — Handbook of Flight Operating Instructions, \u003cem\u003eKC-97E Aircraft\u003c\/em\u003e — 10 August 1951\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT.O. 1C-97(K)F-1\u003c\/strong\u003e — Flight Manual, \u003cem\u003eKC-97F \/ KC-97G Aircraft\u003c\/em\u003e — 15 October 1961, Change 15 December 1962\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT.O. 1C-97(K)G-1\u003c\/strong\u003e — Flight Manual, \u003cem\u003eKC-97G Aircraft\u003c\/em\u003e — 15 October 1959\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT.O. 1C-97(K)L-1\u003c\/strong\u003e — Flight Manual, \u003cem\u003eKC-97L Aircraft\u003c\/em\u003e — 1 June 1966, Change 11, 1 November 1973\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT.O. 1C-97(H)G-1\u003c\/strong\u003e — Flight Manual, \u003cem\u003eHC-97G Aircraft\u003c\/em\u003e — 1 December 1964, Changed 1 June 1969\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT.O. 1C-97A-3\u003c\/strong\u003e — Technical Manual, Structural Repair Instruction, \u003cem\u003eC-97A\/C\/D, KC-97E\/F\/G Aircraft\u003c\/em\u003e — 20 November 1956, Change 7, 15 November 1973. Contract F34601-73-D-1388\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT.O. 1C-97(Y)J-1\u003c\/strong\u003e — Utility Flight Handbook, \u003cem\u003eYC-97J Aircraft\u003c\/em\u003e — 1 April 1955\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT.O. 1C-97A-1\u003c\/strong\u003e — Flight Manual, \u003cem\u003eC-97A\/C Aircraft\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT.O. 1C-97A-1-1\u003c\/strong\u003e — Performance Data, \u003cem\u003eC-97A\/C Aircraft\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT.O. 1C-97D-1\u003c\/strong\u003e — Flight Manual, \u003cem\u003eC-97D\/K Aircraft\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMATS Operations Manual\u003c\/strong\u003e — C-97, Military Air Transport Service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e⚠️ \u003cstrong\u003eRegulatory Notice:\u003c\/strong\u003e Under FAA 14 CFR § 43.13 and EASA Part-M, any mechanic performing maintenance on an active aircraft must use current, manufacturer-approved revision-controlled data. This archival document does not satisfy that requirement.\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eLiving Collections with Free Lifetime Updates – Please review our Legal Notice and Export Notice before purchasing.\u003c\/p\u003e","brand":"Online Aviation Library","offers":[{"title":"Default Title","offer_id":53853473210715,"sku":null,"price":149.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4788\/3867\/files\/banner-1-arctic-sar-hero.png?v=1787316251","url":"https:\/\/onlineaviationlibrary.com\/products\/boeing-model-367-377-c-97-kc-97-stratocruiser-documentation-collection","provider":"Online Aviation Library","version":"1.0","type":"link"}