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The Baumann Brigadier was a prototype American light transport aircraft of the late 1940s. It was a twin-engined monoplane, which, unusually, was of pusher configuration. Only two were built, plans for production never coming to fruition.

B-290 Brigadier
Role	Light transport Type of aircraft
National origin	United States
Manufacturer	Baumann Aircraft Corporation
Designer	Jack Boyer Baumann
First flight	June 1947
Number built	2
Developed into	Custer CCW-5

Development and design

Jack Baumann, who had worked for the Taylor Aircraft Company (later to become Piper Aircraft) and Lockheed,[1][2] set up the Baumann Aircraft Corporation in Pacoima, Los Angeles, California in 1945.[3] His first design for the new company was the B-250 Brigadier, a twin-engined pusher monoplane intended as an executive transport. It was of all-metal construction, with cantilever shoulder mounted wings, and with the pusher engines mounted in nacelles on the wing. An enclosed cabin accommodated a pilot and four passengers, while the aircraft was fitted with a retractable nosewheel undercarriage.[3]

The first prototype, powered by two 125 hp (93 kW) engines (hence the B-250 designation) flew on 20 June 1947.[4] Piper Aircraft was interested in building a tractor version of the Brigadier, and purchased the B-250 prototype and its drawings, designating it the PA-21,[4][5] with some sources [4] claiming that the B-250 formed the basis of the Piper Apache, although other sources state that Piper abandoned work on the PA-21 and that the Apache was unrelated.[5]

Baumann continued development of the pusher Brigadier, with the second example, the B-290, being fitted with 145 hp (108 kW) Continental C-145 engines but was otherwise similar to the B-250. The B-290, registered N90616, crash-landed at Pacoima on January 8, 1953, heavily damaging the fuselage and injuring pilot Ward C. Vettel and flight engineer Thomas Cox.[6] Production at a rate of one aircraft per month was planned for the B-290.[3] The Brigadier was chosen by Willard Ray Custer as the basis of his Custer CCW-5, which used the fuselage and tail of the Brigadier, but had a modified wing with the engines sitting in U-shaped ducts,[7] but other than the two CCW-5s no production of the B-290 followed. Baumann continued to propose more powerful versions of the Brigadier, but no airframes resulted.[4]

Variants

B-250 Brigadier

Initial prototype. Two 125 hp (93 kW) engines.

B-290 Brigadier

More powerful second prototype (two 145 hp (108 kW) engines).

B-360 Brigadier

Planned version with 180 hp (130 kW) Lycoming engines.[8]

B-480 Super Brigadier

Planned enlarged version with 240 hp (180 kW) Continental O-470 engines.[8]

Piper PA-21

Tractor-engined version, abandoned.

Specifications (B-290)

Data from Jane's All The World's Aircraft 1953–54.[3]

General characteristics

• Crew: 1
• Capacity: 4 passengers
• Length: 27 ft 5 in (8.36 m)
• Wingspan: 41 ft (12 m)
• Height: 10 ft 2 in (3.10 m)
• Wing area: 207 sq ft (19.2 m²)
• Empty weight: 2,200 lb (998 kg)
• Gross weight: 3,500 lb (1,588 kg)
• Fuel capacity: 78 US gallons (300 L)
• Powerplant: 2 × Continental C145-H air-cooled Flat-six engine, 145 hp (108 kW) each
• Propellers: 2-bladed Sensenich

Performance

• Maximum speed: 190 mph (310 km/h, 170 kn)
• Cruise speed: 165 mph (266 km/h, 143 kn) (75% power)
• Stall speed: 45 mph (72 km/h, 39 kn) (power on)
• Range: 750 mi (1,210 km, 650 nmi)
• Service ceiling: 18,000 ft (5,500 m)
• Rate of climb: 1,250 ft/min (6.4 m/s)

See also

Related development

• Custer CCW-5

Notes

References

Further reading

• Bridgman, Leonard, ed. (1947). Jane's all the World's Aircraft 1947. London: Sampson Low, Marston & Co. p. 179c.

External links

• "Baumann B290 Brigadier". edcoatescollection
• "One Engine Keeps It Flying" , April 1949, Popular Science see bottom of page

На других языках

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[de] Baumann Brigadier

Die Baumann Brigadier war der Prototyp eines leichten Transportflugzeugs des US-amerikanischen Flugzeugherstellers Baumann Aircraft Corporation. Einer der Prototypen wurde einschließlich der Konstruktionspläne an die Piper Aircraft Corporation verkauft, die ihn unter der Bezeichnung PA-21 weiterentwickeln wollte.

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- [en] Baumann Brigadier

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[fr] Baumann Brigadier

Le Baumann Brigadier était un avion bimoteur américain de transport léger à hélice propulsive dont trois exemplaires seulement furent construits. Cet appareil est surtout connu pour avoir servi de base au Custer CCW-5 (en) et peut-être au Piper Apache.

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