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Pander S 4 Postjager

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Top speed
  
370 km/h

Length
  
11 m

Manufacturer
  
Pander & Son

Wingspan
  
16 m

First flight
  
October 6, 1933

Pander S-4 Postjager httpsuploadwikimediaorgwikipediacommonsthu

The Pander S-4 Postjager was a 1930s Dutch three-engined mailplane designed and built by Pander & Son. Only one was built which was destroyed during the MacRobertson Air Race.

Contents

Design and development

The S-4 was designed as a fast mailplane for the service between the Netherlands and the Dutch East Indies. It was a three-seat low-wing monoplane powered by three 420 hp (313 kW) Wright Whirlwind radial engines. It had a conventional retractable landing gear with a tailwheel. The S-4, registered PH-OST, first flew on 6 October 1933.

Operational history

In December 1933 it flew a mail flight to Batavia. In 1934 the S-4 was entered into the MacRobertson Air Race between London and Melbourne. It left Mildenhall in England on 20 October 1934 and after 36 hours arrived at Allahabad, India. The aircraft was delayed when the landing gear was badly damaged on arrival at Allahabad. It was ready to leave on the 26 October but while taxiing for departure it hit a motor car and burst into flames and was destroyed; the crew jumped out and escaped injury.

Specifications

Data from The "Aerial Phost"

General characteristics

  • Crew: 3
  • Capacity: 500 kg
  • Length: 11 m (36 ft 1 in)
  • Wingspan: 16.4 m (53 ft 10 in)
  • Height: 2.9 m (9 ft 6 in)
  • Wing area: 45.0 m2 (484 sq ft)
  • Gross weight: 5,000 kg (11,023 lb)
  • Powerplant: 3 × Wright Whirlwind air-cooled radial engine, 340 kW (450 hp) each

    • Performance

  • Maximum speed: 370 km/h (230 mph; 200 kn)
  • Cruise speed: 300 km/h (186 mph; 162 kn)
  • Range: 2,430 km (1,510 mi; 1,312 nmi)
  • Service ceiling: 5,400 m (17,700 ft)

    • References

    Pander S-4 Postjager Wikipedia
    (Text) CC BY-SA


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