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Budd BB-1 Pioneer

BB-1 Pioneer
The Pioneer in front of the Franklin Institute
Role Experimental flying boat
National origin United States
Manufacturer Budd Company
First flight 1931
Number built 1

The Budd BB-1 Pioneer was an experimental United States flying boat of the 1930s utilizing the Savoia-Marchetti S.56 design. Its framework was constructed entirely of stainless steel, using a newly patented method of welding that alloy.[1]

Contents

  • Development 1
  • Operational history 2
  • Specifications 3
  • References 4

Development

By 1930 the Budd Company was a national leader in construction of railway vehicles containing considerable amounts of stainless steel. Anxious to expand this expertise into other areas, company founder Edward G. Budd hired Enea Bossi to design and construct a flying boat of shot-welded stainless steel sheet and strip. They contracted with the Italian aircraft company Savoia-Marchetti for the use of the SM.56 design. The SM.56 was a single-engine three-seat flying boat.[2] The Italian company granted licenses for construction of three units in the USA, one to Budd and the others to other companies.[3]

The resulting BB-1 was a biplane flying boat, with the lower wing attached near the top of the hull and the upper wing held high above, with a single Kinner C-5 radial engine mounted on the aircraft centerline between the wings. Wheels mounted on the sides of the hull were retracted upwards during water landings. The single tailwheel was not retractable. The pilot and two passengers rode in an open cockpit near the bow.

The prototype BB-1 first flew from the Budd Factory aerodrome, a field northwest of Philadelphia (Latitude 40.11/West Longitude 75.04). The field is still visible, although not used as a landing strip.

Although the Pioneer was the first American airplane to be made of stainless steel, it was not the only one. The Fleetwings BT-12 was a later experiment by the United States Army Air Corps to develop stainless steel aircraft trainers.[4]

Operational history

The BB-1 Pioneer first flew in 1931. Flight tests showed it to be typical in performance and challenging to handle on the water.[5] The aircraft logged about 1,000 flying hours on tours of the USA and Italy.

In 1934 its fabric and lower wing were removed, and it was placed on permanent display outside the Franklin Institute in Philadelphia, Pennsylvania.

Specifications

Data from [2]

General characteristics
  • Length: 25 ft 8 in (7.83 m)
  • Wingspan: 34 ft 2 in (10.42 m)
  • Powerplant: 1 × Kinner C-5 five-cylinder, one-row radial engine, 210 hp (157 kW)

References

  1. ^ American Institute of Aeronautics and Astronautics, Out of the Past
  2. ^ a b Pioneer page
  3. ^ Pioneer webpage of Aerofiles website
  4. ^ Photo of Fleetwings Seabird
  5. ^ Savoia-Marchetti S.56
  • A "Shot Welded" Aircraft
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