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The Pilatus SB-1 was a single-engined twin-propeller utility transport development project of Pilatus Flugzeugwerke AG from Switzerland, during World War II, (SB - Schweizer Bergflugzeug - Swiss mountain aircraft).

SB-1
A model of the SB-1
Role	Twin-engined utility transport Type of aircraft
National origin	Switzerland
Manufacturer	Pilatus Flugzeugwerke AG

Design and development

The SB-1 was intended as a pure experimental aircraft, designed with a mid-wing monoplane with accommodation for pilot and observer side by side in the cockpit and two passengers in a cabin directly behind the cockpit. The fuselage was to have built-up from welded steel tube covered with light-alloy and fabric. The aircraft would have been powered by a single Argus As 10E / Argus As 410 air-cooled V-8 engine, located at the center of gravity, in the fuselage, below the wing centre-section. The engine drove two-bladed propellers, driven by V-belts and idlers, mounted on the wing leading-edges either side of the fuselage, reducing drag and imbuing favorable low-speed flight characteristics due to the air flow of the propellers acting directly on the leading edge of the wing. The SB-1 was designed with a fixed tail-wheel undercarriage and also had a twin-fin tail unit. A study was also made of two engines mounted in the fuselage, each driving a separate propeller. Development of this project was abandoned before metal was cut.[1]

Pilatus "SB" projects

SB-1

Intended as a pure experimental aircraft, commercial use was not planned.

SB-2 Pelican

The only SB project to be built and flown.

SB-5

An enlargement of the SB-2, abandoned before construction began.

• (Nothing is known about possible SB-3 or SB-4 designs).

Specifications (SB-1)

Data from ^{[citation needed]}

General characteristics

• Crew: one
• Capacity: up to 3 passengers
• Length: 10.3 m (33 ft 10 in)
• Wingspan: 15 m (49 ft 3 in)
• Powerplant: 1 × Argus As 10E / Argus As 410 V-8 air-cooled inverted piston engines, 336 kW (451 hp)

Performance

• Maximum speed: 250 km/h (160 mph, 130 kn)
• Wing loading: 26 kg/m² (5.3 lb/sq ft)

References

Further reading

Wikimedia Commons has media related to Pilatus SB-1.

• Eichenberger, Roland (1989). Pilatus Flugzeuge: 1939–1989 (in German). Stans: Pilatus Flugzeugwerke.

На других языках

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[de] Pilatus SB-1

Die Pilatus SB-1 war ein Entwicklungsprojekt der Schweizer Firma Pilatus Flugzeugwerke AG und der ETH Zürich, von dem aber kein Flugzeug gebaut wurde. Der Name Pilatus SB-1 setzt sich zusammen aus dem Herstellerwerk des Flugzeuges, der Pilatus Flugzeugwerke, das Kürzel SB steht für Schweizer Bergflugzeug.

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- [en] Pilatus SB-1

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