Having become recognised as a designer of military aircraft, following the supply of Model 15 to both the US Army (PW-9) and US Navy (FB-1), the company designed the Boeing Model 21 to meet a US Navy requirement for a primary trainer. This was an equal-span biplane, incorporating an unusually wide wing centre-section, and introduced N-type interplane struts to eliminate wing incidence-bracing wires. The divided-axle main units of the tail-skid landing gear had rubber bungee shock absorbers, plus provision for easy conversion to operation with floats. The pilot and pupil were accommodated in tandem open cockpits. Power was provided by a Lawrance J-1 radial engine. US Navy testing of the Model 21 was carried out with the prototype aircraft, under the designation VNB-1. From the potential operator’s point of view, however, the type was unsuitable for the required role, being unspinnable and too easy to fly. On the understanding that modifications would be introduced to make the aircraft a little more demanding, and spinnable, 41 production aircraft were ordered under the designation NB-1. The first of these was delivered on 5 December 1924, and it was soon discovered that Boeing’s spin modifications were too effective, since it was possible to get into a flat spin from which recovery was virtually impossible.
Further modifications produced an acceptable compromise. Some NB-1s had Lawrance J-2 or J-4 engines, and several aircraft had 164kW Wright J-5 engines installed at a later date. Following delivery of the NB-1s an additional 30 were ordered of the NB-2 variant, this differing only by having war-surplus 134kW Wright-Hispano E-4 engines, installed at the US Navy’s request to utilise some of the very large number of these licence-built engines held in naval stores.
Boeing Model 21 / NB-1 Engine: 1 x 149kW Lawrance J-1 radial piston engine Take-Off Weight: 1287 kg / 2837 lb Empty Weight: 969 kg / 2136 lb Wingspan: 11.23 m / 36 ft 10 in Length: 8.76 m / 28 ft 9 in Height: 3.56 m / 11 ft 8 in Wing Area: 31.96 sq.m / 344.01 sq ft Max. Speed: 160 km/h / 99 mph Cruise Speed: 145 km/h / 90 mph Ceiling: 3110 m / 10200 ft Range: 483 km / 300 miles Armament: 1 x 7.62mm machine-gun
NB-2 Engine: 1 x 134kW Wright-Hispano E-4 Wingspan: 11.23 m / 36 ft 10 in Length: 8.76 m / 28 ft 9 in Height: 3.56 m / 11 ft 8 in Wing Area: 31.96 sq.m / 344.01 sq ft Armament: 1 x 7.62mm machine-gun
In April 1925 the USAAC issued a specification for a single-seat fighter to be powered by a new 447kW Packard engine of inverted layout. Boeing’s airframe for this requirement was generally similar to that of the Model 15 family, but incorporated a coolant radiator in the centre-section of the lower wing. Designated XP-8 (Boeing Model 66), this model preceded the XP-7, delivered in July 1927, having been launched as a private venture late in the previous year. Powered by a 600hp Packard 2A-1500 water-cooled engine, the XP-8 utilised an airframe essentially similar to that of the US Navy XF2B-1, but performance failed to meet the requirements of the 1925 USAAC specification which it had been designed to meet, and the aircraft was finally scrapped in June 1929. Armament comprised one 7.62mm and one 12.7mm machine gun.
Engine: 600hp Packard 2A-1500 water-cooled Take-off weight: 1552 kg / 3422 lb Empty weight: 1084 kg / 2390 lb Wingspan: 9.16 m / 30 ft 1 in Length: 6.95 m / 22 ft 10 in Height: 3.27 m / 10 ft 9 in Wing area: 22.57 sq.m / 242.94 sq ft Max. speed: 278 km/h / 173 mph
The last aircraft built by Boeing against an order for 30 PW-9 single-seat fighters was retained by the company at the request of the USAAC for trials with a turbo-supercharged version of the 510hp Packard 1A-1500 water-cooled engine (utilised by the FB-2). The USAAC also requested an increase in wing area, because of the higher weights involved, and while the standard PW-9 upper wing was retained, an enlarged lower wing was introduced, resulting in an equi-span biplane with vertical N-type interplane struts. The standard PW-9 armament of two 7.62mm synchronised machine guns was augmented by a pair of similar-calibre weapons mounted beneath the lower wing outside the propeller arc. With these changes the aircraft was designated XP-4 (Model 58), and delivered on 27 July 1926, but the 6.32sq.m increase in gross wing area by comparison with the PW-9 failed to compensate for the 370kg increase in loaded weight. The XP-4 proved to possess extremely unsatisfactory handling characteristics and after a few hours flying the test programme was abandoned.
Engine: turbo-supercharged Packard 1A-1500, 510hp Take-off weight: 1656 kg / 3651 lb Empty weight: 1262 kg / 2782 lb Wingspan: 9.75 m / 31 ft 12 in Length: 7.29 m / 23 ft 11 in Height: 2.69 m / 8 ft 10 in Wing area: 28.71 sq.m / 309.03 sq ft Max. speed: 259 km/h / 161 mph Range: 603 km / 375 miles
With experience gained from sub-contract production of a aircraft designed by other manufacturers, in particular, the Thomas-Morse MB-3A, Boeing began the private-venture development of a single-seat fighter under the designation Boeing Model 15. First flown on 2 June 1923, it was a single-bay biplane with wings of unequal span, the lower wing also being of reduced span and chord. The wings were of wooden construction, fabric-covered, but the fuselage was of welded steel tube. The braced tail unit was also of wood, and incorporated a variable-incidence tailplane that could be adjusted in flight. Landing gear was of fixed tailskid, with through-axle main units, and power was provided by a 324kW / 375 hp Curtiss D-12 inline engine. The design featured an underslung sloping core radiator with small frontal area, and an elliptical lower wing and tapered upper wing. The US Army became interested in the Model 15 before it was flown, and was evaluated by the US Army at McCook Field, under the designation XPW-9. It was flown in competition against a Fokker XPW-7 and Curtiss XPW-8A, wining an order for two extra XPW-9s for more extensive evaluation; these were delivered in May 1924. The third of the aircraft differed by having divided-axle instead of through-axle main landing gear units, and it was this type of landing gear that was chosen for the 30 examples of the production PW-9 ordered in two batches (12 and 18) in September and December 1925 respectively.
PW-9 25-301
The US Navy was as keen as the US Army to acquire examples of Boeing’s new fighter, and the first of an order of 14 for service with the US Marine Corps, under the designation FB-1, were delivered on 1 December 1925 to the shore-based fighter squadrons VF 1M, 2M and 3M. They were used in 1927 and 1928 by the US Expeditionary Force in China. Only 10 were produced as FB-1s, these being virtually identical to the US Army’s PW-9 (Boeing Model 15), having the same 435 hp Curtiss D 12 engine and two gun armament. The 11th and 12th aircraft on this order introduced the 380kW Packard 1A-1500 inline engine, and were equipped with through-axle landing gear and an arrester hook for operation from aircraft-carriers. The change resulted in redesignation by the US Navy to FB-2 (Boeing Model 53); the 13th aircraft was identical to the FB-2, except for twin, float landing gear, and was designated FB-3 (Boeing Model 55); and the 14th and last of the US Navy’s initial order also had twin floats, but introduced a 336kW Wright P-1 radial engine, becoming redesignated FB-4 (Boeing Model 54) or FB-6 with the 298kW Pratt & Whitney Wasp. The development ultimately led to the FB-5 produced during 1926-27. The FB 5 for the US Navy (Boeing Model 67), differed from the FB 1 in having a 520 hp Packard 2A 1500 engine, increased wing stagger, and a balanced rudder. Twenty seven were deli¬vered in January 1927 to Marine fighter squadrons VF 1B and VF 6B for service aboard the Langley.
Boeing Model 15 / XPW-9 Engine: 324kW / 375 hp Curtiss D-12 inline
Boeing Model 15 / PW-9 / FB-1 Engine: 435 hp Curtiss D 12 Span: 9.75 m (32 ft) Length: 7.14 m (23 ft 5 in) Empty Weight: 1,936lbs (878kg) Maximum Take-Off Weight: 3,120lbs (1,415kg) Maximum Speed: 159mph (256kmh; 138kts) Maximum Range: 390miles (628km) Service Ceiling: 18,924ft (5,768m) Armament: 1 x 7.62mm mg, 1 x 12.7mm machine gun Accommodation: 1
PW-9C Engine: One 400 h.p. Curtiss D.12 Length 23.6ft (7.2m) Wingspan 32ft (9.75m) Weight 3,043 lb (1,380 kg) Seats: 1 Max speed: 163 mph (262 kph) Ceiling: 20,000 ft (6,000m) fully loaded.
Boeing Model 53 / FB-2 Engine: 380kW Packard 1A-1500 inline Length 23.6ft (7.2m) Wingspan 32ft (9.75m) Seats: 1
The first product, B & W Seaplane of 1916, was designed by William Boeing in conjunction with Conrad Westervelt. The company secured the first of many military contracts in June 1916, when it received an order from the Navy Department to build 50 HS-2L flying boats. First production order was for Model C seaplane trainer for U.S. Navy (first flown 1916), followed by Model EA land trainer of 1916 for U.S. Army. Name changed to Boeing Airplane Company April 26,1917. Improved Model C of 1918 was first mass-produced Boeing aircraft, built alongside Boeing-constructed Curtiss HS-2L flying-boats. First post-First World War design was the B-1 three-seat flying-boat (first flown December 1919), while in 1920 the first flight took place of the first of many Boeing-built DH-4s (based on British Airco D.H.4). Built ten U.S. Army-designed GA-1 armored ground attack triplanes (first flown May 1921) but just two GA-2s, followed by 200 Thomas-Morse MB- 3A pursuit aircraft (first flown 1922). The Boeing company has contracted with Thomas Morse to build the MB-3 fighter. With this experience Boeing undertook the development of their own PW-9 pursuit aircraft. Bid successfully for the San-Francisco-Chicago airmail route in 1927 and formed subsidiary Boeing Air Transport to operate the route. In 1928, Boeing Airplane and Transportation Corporation went pub¬lic and the stock sold quickly. As other airlines were acquired, this became Boeing Air Transport System. Merged with Pratt & Whitney, Standard Steel Propeller Co, and two small aircraft manufacturers to form United Aircraft & Transport Corporation in 1929. All continued to operate under original identities. Encouraged, Boeing formed the United Aircraft and Transport Corporation, which included Boeing Airplane Company, Pratt & Whitney, Chance Vought, Sikorsky, Hamilton Propeller, Pacific Air Transport. First real success with own-design military aircraft came in 1923, with the PW-9/FB-1 series, which had a fabric-covered welded-steel-tube fuselage. Other aircraft followed in quick succession, types of particular note including the Boeing Model 40, designed for carriage of airmail plus two (and later four) passengers, used by new Boeing Air Transport. Model 80 12-passenger transports with three Pratt & Whitney Wasp engines introduced by Boeing Air Transport in 1928. World’s first airline stewardesses introduced on these aircraft 1930. In 1929 Lloyd Stearman sold his Stearman Aircraft Company to the ‘United Aircraft and Transport Corporation’. Model 80A with more powerful Hornet engines and seats for 18 passengers followed. Biggest military order to that date (other than MB-3As) came in 1931, when U.S. Army ordered 135 P-12E single-seat fighters, and U.S. Navy 113 of the similar F4B-3: total of 586 aircraft in this series built by 1933 (prototype Model 83 for P-12 series had flown June 1928). Boeing Model 200 Monomail, mail/cargo aircraft, first flew May 1930; revolutionary aircraft with cantilever allmetal monoplane wing, retractable main landing gear and a specially designed antidrag cowling for its single Hornet engine. A second Monomail, Model 221, had six-seat passenger cabin. Military development of this aircraft resulted in YB-9 bomber (first flown April 1931), forcing evolution of new fighter types. Boeing produced P-26 single-seat all-metal monoplane fighter (first flown March 1932), of which 136 bought by U.S. Army. Biggest step forward came with the Model 247 (first flown February 1933), most advanced conception of a transport aircraft anywhere in the world at that time. Introduced wing and tail unit leading- edge de-icing, control surface trim tabs and, in production aircraft, controllable-pitch propellers and autopilot. It was the first twin-engined monoplane transport that could climb with a full load on the power of one engine. In 1934 legislation prevented aircraft and engine manufacturers from operating airlines. Boeing resigned as chairman, sold out his stock and the corporation was divided into three new companies in September 1934 United Air Lines to handle air transport, United Aircraft Corporation to take over the eastern manufacturing firms and Boeing Airplane Company to manage Western operations, together with Stearman, a wholly owned subsidiary. The name Boeing Airplane Company was readopted in 1948. In May 1961, following acquisition of Vertol in 1960, became known as The Boeing Company, which remained the name in 1999. Changes in the company structure took place in 1996, when on December 15 it was announced that a merger had been agreed with McDonnell Douglas. The two large organizations began operating as a single company from August 4,1997, under the Boeing name. Also in December 1996 Boeing purchased Rockwell International’s aerospace and defense units, these being retitled Boeing North American Inc. and subsequently becoming part of Boeing’s Space Systems business unit. Several internal restructures of the Boeing organization followed, the set-up comprising three main groups, namely, Information, Space, and Defense systems Group (ISDS), Boeing Commercial Airplane Group (BCAG), and Boeing Shared Services Group; the latter for information management and computing resources. Within ISDS are various business units comprising Aircraft and Missile Systems (to undertake Boeing’s military airplane and helicopter programs, plus oversee tactical missile development), Boeing Space Systems (to oversee Boeing’s space programs for DoD and NASA), Information and Communication Systems (programs include AWACS surveillance systems, communications systems and more), Phantom Works (a previous McDonnell Douglas unit for advanced research and development, with programs including research into hypersonic aircraft), and Business Resources. BCAG is headquartered at Renton but has units in various other locations. This group comprises Customer Services, Douglas Products Division (for manufacturing airliners that originated from McDonnell Douglas, such as the MD-80, MD-90, MD-11, and B717), Engineering Division, Fabrication Division (constructing components), Materiel Division (made responsible for materials and subcontracted components), Propulsion Systems Division (engine preparation for airliners), 737/757 Programs, 747/767 Programs, 777 Program, and Wichita Division (components and subassemblies). Significant military aircraft since the early 1930s have included the B-17 Flying Fortress bomber (first flown July 1935), of which 12,731 examples were built; B-29 Superfortress bomber (first flown September 1942); B-47 Stratojet medium jet bomber (first flown December 1947); B-52 Stratofortress intercontinental strategic bomber (first flown April 1952); E-4 National Airborne Operations Center aircraft (first flown June 1973); E-3 Sentry airborne early warning and control system aircraft (delivered from March 1977); E-6 Mercury survivable airborne communications system aircraft for the U.S. Navy (first flown February 1987); and EC-18 advanced range instrumentation and cruise missile control aircraft. The B-52H Stratofortress continues to form a major component of the USAF, and proposals were made in 1998 to re-engine 71 examples of this eight-engined bomber with four very powerful Rolls- Royce RB211-535E-4 turbofans each. Continuing military programs in 1999 include work in developing the AL-1A Airborne Laser aircraft based on the Model 747 Freighter; development of Boeing’s contender for the Joint Strike Fighter program to produce a multipurpose combat aircraft with CTOL/STOVL flight characteristics to replace a range of present warplanes from about the year 2008; new AWACS aircraft for export based on 737 and 767 airframes (first flight of an E-767 AWACS with structural AWACS features for Japan, August 1996); and production of the F-15 Eagle, F/A-18 Hornet and Super Hornet, Harrier II and II Plus, and T-45 Goshawk (all ex-McDonnell Douglas). Aircraft which have made important contributions to global air transport, in addition to those previously mentioned, include the Model 314 flying-boat (first flown June 1938); Model 307 Stratoliner with pressurization (first flown December 1938); Model 377 Stratocruiser (first flown November 1944 as XC-97 military transport); Model 367-80 turbojet transport (first flown July 1954) which was put into production as a military tanker-transport for the USAF as the KC-135 Stratotanker and as the Model 707 commercial airliner; Model 727 tri-jet short/medium-range airliner (first flown February 1963); Model 737 twin turbofan short-range airliner (first flown April 1967 and still in production in 1999 in advanced and Next Generation versions, with development continuing and over 4,000 sold); Model 747 four-jet wide-body high-capacity airliner (first flown February 1969 and given the press nickname “Jumbo Jet”; still in production in 1999 in latest 747-400 series versions, with new versions under development); Model 757 twin-jet medium-range airliner (first flown February 1982); Model 767 twin-jet wide-body medium/longrange airliner (first flown September 1981); and Model 777 twin-jet wide-body long-range airliner.
Since the merger with McDonnell Douglas, the Boeing aircraft range also includes the Model 717 (first flown 1998; formerly the McDonnell Douglas MD- 95), C-17A Globemaster III military heavy-lift and longrange transport (first flown September 1991; commercial version proposed as the MD-17); MD-11 medium/long-range tri-jet airliner (first flown January 1990); MD-80 twin-jet short/medium-range airliner (first flown October 1979 as follow-on to similar but older DC-9); MD-90 twin-jet medium-range airliner (first flown February 1993 as longer and advanced development of MD-80); F-15 Eagle; F/A- 18 Hornet and Super Hornet; Harrier II and II Plus; T-45 Goshawk; and various helicopters. Since taking over Rockwell International’s aerospace and defense units, the B-1B Lancer long-range variable-geometry strategic bomber is technically also a Boeing type, although production of 100 ended in 1988. Since the merger of Boeing and McDonnell Douglas, Boeing’s helicopter range has grown. However, Boeing took the strategic decision to concentrate on military helicopter programs and sold its 49% share in the Model 609 civil tilt-rotor transport to its development partner Bell Helicopter Textron (now called BA 609; the MD 500/520/530/Defender and MD 600N helicopter ranges thereafter (plus MD 900/902 Explorer/Combat Explorer not selected by Bell) remained for sale elsewhere, some using the unique NOTAR antitorque system. Boeing has sold its civil helicopter production line, formerly manufactured by McDonnell Douglas, to Dutch company MD Helicopters on 19 February 1999. The sale, coming only two years after Boeing themselves purchased the range through a merger. The sale includes the MD500E, 520N, 530F and 600N models, as well as the twin-engined MD Explorer and the licence to incorporate the no tail rotor (NOTAR) system on future aircraft. Boeing does, however, keep the ownership of the NOTAR technology. Boeing continued to produce the machines, under contract to the new Dutch owners, until early 2000. However, Boeing continued its partnership with Bell over development and production of the V-22 Osprey military tilt-rotor transport and multipurpose aircraft for the U.S. forces (first flown March 1989). Not for sale was the inherited AH-64 Apache attack helicopter, produced also in the U.K. in AH-64D Apache Longbow form. Boeing’s own H-47 Chinook continued in production, and Boeing remained partnered with Sikorsky in the development of the RAH-66 Comanche multirole battlefield helicopter for the U.S. Army (first flown January 1996).
Boeing enhanced its space prowess through the merger in 1997 with McDonnell Douglas and the acquisition the year before of the defense and space units of Rockwell International.
In 1998 Boeing was under contract to the United Space Alliance for shuttle orbiter production, modifications and operations, and for overall shuttle system and payload integration services, with additional responsibility for launch and mission support.
In 1999 Boeing operations were located in 27 states, and the company had employees in more than 60 countries. The company was organized into three major business segments: Boeing Commercial Airptane Group, Military Aircraft and, Missile Systems Group, and Space and Communications Group.
In 1930 Avions Bodiansky produced an advanced two-seat light monoplane, the Bodiansky 20 monoplane, which featured a welded steel-tube fuselage structure, as well as manually and automatically operated leading-edge slots and trailing-edge flaps.
France In 1930 Avions Bodiansky produced an advanced two-seat light monoplane, the Bodiansky 20 monoplane, which featured a welded steel-tube fuselage structure, as well as manually and automatically operated leading-edge slots and trailing-edge flaps.
A full-size replica of the 1918 Royal Aircraft Factory BE.2c was built at Sywell, UK, for a ‘Biggles’ film in 1968 by Charles Boddington using Tiger Moth components and a Gipsy Major 10-1.
Registered G-AWYI cn 1 it flew with the serial 2984.
It was later sold in the USA as N1914B.
Engine: Gipsy Major 10-1 Wingspan: 37.00 ft Length: 27.03 ft
The Military monoplane designed by Ing. Philipp Enders [System Enders] was announced in Flugsport 1911 to be constructed by the Flug Technische Gesellschaft Nürnberg-Fürth E.V., yet in the same issue a drawing infers that it was to be constructed by the Nürnberger Motoren und Maschinenfabrik. In the end the steel-constructed machine was exposited in the Berlin ALA (Algemeinen Luftfahrt Ausstellung) 1912 as a finished machine of the Bayerische Motoren- und Flugzeugwerke Nürnberg.
The third monoplane of the BMFW, it was powered by a 50/55 hp BMFW Sylphe engine of own design.