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.[1]
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.[1] The S-4, registeredPH-OST, first flew on 6 October 1933.[1]
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.[2][3] It was ready to leave on 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.[1][2][3]
Specifications
Data from Flight 5 October 1933, The "Aerial Phost",[4] Jane's all the World's Aircraft 1934,[5] Pander S.4 Postjager Trimotor Mailplane[3]
General characteristics
Crew: 3
Capacity: 500 kg
Length: 12.5 m (41 ft 0 in)
Wingspan: 16.6 m (54 ft 6 in)
Height: 2.9 m (9 ft 6 in)
Wing area: 44.98 m2 (484.2 sq ft)
Empty weight: 3,025 kg (6,669 lb)
Gross weight: 5,500 kg (12,125 lb)
Fuel capacity: Fuel:2,100 L (550 US gal; 460 imp gal); Oil:130 L (34 US gal; 29 imp gal)
^ ab"Pander machine destroyed". News. The Times. No. 46896. London. 27 October 1934. col A, p. 11.
^ abc"Pander S.4 Postjager Trimotor Mailplane". Old Machine Press. 5 November 2016. Retrieved 17 September 2018.
^"The "Aerial Phost"". Flight. XXCV no.40 (1293): 992. 5 October 1933. Retrieved 17 September 2018.
^Grey, C.G., ed. (1934). Jane's all the World's Aircraft 1934. London: Sampson Low, Marston & company, ltd. pp. 178c–179c.
Further reading
Hazewinkel, H. J. (July 1971). "Pander "Postjager"". Le album de fanatique de l'Aviation (in French) (24): 7–9. ISSN 0757-4169.
"Some Head-On Contrasts Among the Australia Race Entries". Flight. No. 18 October 1934. pp. 1082–1083.
January 07, 2023
pander, postjager, 1930s, dutch, three, engined, mailplane, designed, built, pander, only, built, which, destroyed, during, macrobertson, race, postjager, allahabadrole, mailplanenational, origin, netherlandsmanufacturer, pander, sondesigner, theo, slotfirst, . The Pander S 4 Postjager was a 1930s Dutch three engined mailplane designed and built by Pander amp Son Only one was built which was destroyed during the MacRobertson Air Race 1 Pander S 4 PostjagerPostjager at AllahabadRole MailplaneNational origin NetherlandsManufacturer Pander amp SonDesigner Theo SlotFirst flight 6 October 1933Status DestroyedNumber built 1 Contents 1 Design and development 2 Operational history 3 Specifications 4 References 4 1 Further readingDesign and development EditThe 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 1 The S 4 registered PH OST first flew on 6 October 1933 1 Operational history EditIn 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 2 3 It was ready to leave on 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 1 2 3 Specifications EditData from Flight 5 October 1933 The Aerial Phost 4 Jane s all the World s Aircraft 1934 5 Pander S 4 Postjager Trimotor Mailplane 3 General characteristicsCrew 3 Capacity 500 kg Length 12 5 m 41 ft 0 in Wingspan 16 6 m 54 ft 6 in Height 2 9 m 9 ft 6 in Wing area 44 98 m2 484 2 sq ft Empty weight 3 025 kg 6 669 lb Gross weight 5 500 kg 12 125 lb Fuel capacity Fuel 2 100 L 550 US gal 460 imp gal Oil 130 L 34 US gal 29 imp gal Powerplant 3 Wright Whirlwind 9 cylinder air cooled radial engines 310 kW 420 hp eachPerformance Maximum speed 370 km h 230 mph 200 kn Cruise speed 300 km h 190 mph 160 kn Landing speed 95 100 km h 59 62 mph 51 54 kn Flaps down Range 2 430 km 1 510 mi 1 310 nmi Service ceiling 5 400 m 17 700 ft References Edit a b c d The Illustrated Encyclopedia of Aircraft Part Work 1982 1985 Orbis Publishing a b Pander machine destroyed News The Times No 46896 London 27 October 1934 col A p 11 a b c Pander S 4 Postjager Trimotor Mailplane Old Machine Press 5 November 2016 Retrieved 17 September 2018 The Aerial Phost Flight XXCV no 40 1293 992 5 October 1933 Retrieved 17 September 2018 Grey C G ed 1934 Jane s all the World s Aircraft 1934 London Sampson Low Marston amp company ltd pp 178c 179c Further reading Edit Hazewinkel H J July 1971 Pander Postjager Le album de fanatique de l Aviation in French 24 7 9 ISSN 0757 4169 Some Head On Contrasts Among the Australia Race Entries Flight No 18 October 1934 pp 1082 1083 Retrieved from https en wikipedia org w index php title Pander S 4 Postjager amp oldid 1126582644, wikipedia, wiki, book, books, library,
