| 词条 | Short Scylla | |||||||||||||||||
| 释义 |
The Short L.17 Scylla was a British four-engined 39-seat biplane airliner designed and built by Short Brothers at the request of Imperial Airways to supplement the Handley Page H.P.42 fleet already in service after Handley Page quoted an excessive price for two additional H.P.42s. Imperial Airways used the Scylla for scheduled flights from London to Paris and other European cities. Two aircraft were built, Scylla (G-ACJJ) and Syrinx (G-ACJK). Both served with the airline until its merger into BOAC in 1939 and both were taken out of service the following year. Design and developmentThe Scylla was a land-based development of the Short Kent (S.17) flying boat, essentially using the Kent's aerostructure above a redesigned fuselage.[1] It was an all-metal biplane (wingspan of 113 ft, 34,44 m) powered originally by four Bristol Jupiter XFBM radial engines mounted on vertical struts between the upper and lower planes. The square-section braced-framed fuselage was below the lower wing; the tail had a single vertical stabilizer and a horizontal stabilizer at about one quarter height. The Scylla was originally fitted with a Flettner-type servo tab trim control[2] to ease the forces on the rudder controls. An experimental servo tab on the rudder was tested on G-ACJJ Scylla for a time. Experience gained with the latter possibly contributed to a later patent application submitted jointly by Shorts and Dudley Lloyd Parkes on 7 August 1936.[3] The main undercarriage had one fixed wheel on each side, mounted on three diagonally-braced struts, one to the upper and two to the lower edge of the fuselage; there was a single tailwheel. Ailerons were fitted to both upper and lower wings. The engine nacelles were designed to receive Bristol Jupiter, Pegasus or Perseus engines without modification,[1] a far-sighted provision which later enabled e.g. the two inboard Jupiters of G-ACJK Syrinx readily to be replaced with Perseus IIL sleeve valve engines, to test their performance in airline conditions. When Syrinx was re-built (after it had been severely damaged when blown over by sidewinds while taxiing at Brussels airport), it was fitted with four Pegasus XC engines. Operators
Specifications{{Aircraft specs|ref=[4] |prime units?=imp
The two L.17 aircraft, G-ACJJ Scylla and G-ACJK Syrinx, had at different times three different engine configurations between them:
See also{{aircontent|related=
|similar aircraft= |lists= |see also= }} Notes1. ^1 Cassidy, p. 22 2. ^Flettner trimming aerofoil clearly visible aft of the rudder here www.century-of-flight.net 3. ^Cassidy, p. 31 4. ^Barnes and James 1988, p.278. 5. ^Gunston 1980,p.85. 6. ^Jackson 1988, p. 300. References
External links{{commons category-inline|Short Scylla}}{{Short Brothers aircraft}} 6 : British airliners 1930–1939|Biplanes|Short Brothers aircraft|Four-engined tractor aircraft|Aircraft first flown in 1934|Four-engined piston aircraft |
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