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The Eland has a single shaft so the silver-coloured output shaft is connected to the compressor using gears inside the red-painted gearbox. The gears reduce the compressor speed to that required for a propeller of diameter 12 to 16 feet. For a helicopter application the output shaft goes into the
181:. The Rotodyne operated as an autogyro in forward flight using the Eland turboprops. For vertical flight the rotor was driven using an auxiliary compressor clutched to each Eland. They supplied compressed air to a combustion chamber at each rotor tip.
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154:. The military and civil operators had perpetual trouble with the engines which were considered complex. Due to their unreliability
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3,765 hp (2,808 kW) + 610 lbf (2.71 kN) residual thrust, static at sea level ICAN conditions.
207:
2,805 hp (2,092 kW) + 500 lbf (2.22 kN) residual thrust, static at sea level ICAN conditions.
193:
2,690 hp (2,010 kW) + 825 lbf (3.67 kN) residual thrust, static at sea level ICAN conditions.
507:
335:
helicopter gearbox for further speed reduction required by a large diameter rotor, 72 feet for the
Westminster.
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455:
431:
159:
800:
143:
91:
715:
Napier Eland A New
Turboprop For Fixed- And Rotary-Wing Applications,Flight magazine 23 July 1954,p.114
426:
3,500 hp (2,600 kW) (eshp - equivalent shaft horse-power - adding power from residual thrust)
269:
171:
115:
in the early 1950s. Production of the Eland ceased in 1961 when the Napier company was taken over by
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piston engine. Potential production applications which were subsequently cancelled were the
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aircraft. Further flight proving was carried out from 1955 using the first production
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The 504 adapted to helicopter / convertiplane, compressed air generator use.
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The only production applications for the engine were two variants of the
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2. The Eland was dropped from production when Napier was acquired by
796:
Atlantic Canada
Aviation Museum - Napier Eland 504 information sheet
203:
driving the propeller and an auxiliary compressor to feed the rotor
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250:
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The 504 adapted for mechanically driven helicopter rotors.
759:. Cambridge, England. Patrick Stephens Limited, 1989.
960:
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897:
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127:The Eland was first tested in flight in 1953 in a
594:Pickler, Ronald Arthur; Milberry, Larry (1995).
166:turboprop and the CV540 was re-engined with the
162:. The CC-106 had its Elands replaced with the
826:
686:. London: Sampson Low, Marston & Co. Ltd.
677:
675:
673:
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662:. London: Sampson, Low, Marston & Co Ltd.
581:"Power: The Pratt & Whitney Canada Story"
8:
772:British Civil Aircraft since 1919 - Volume I
305:(one aircraft as an engine test bed in 1954)
833:
819:
811:
653:
651:
649:
658:Taylor, John W.R. FRHistS. ARAeS (1955).
242:504 with increased max continuous rating.
314:A turboshaft Eland is on display at the
16:1950s British aircraft turboshaft engine
697:The Helicopter Museum - Fairey Rotodyne
684:Jane's all the World's Aircraft 1959–60
660:Jane's All the World's Aircraft 1955-56
567:
524:
539:
537:
168:Pratt & Whitney R-2800 Double Wasp
20:
7:
999:Axial-compressor gas turbine engines
757:World Encyclopedia of Aero Engines
597:Canadair : The first 50 years
14:
622:"A History of Fairey Engineering"
29:
682:Bridgman, Leonard, ed. (1959).
549:Atlantic Canada Aviation Museum
146:, the Royal Canadian Air Force
174:heavy-lift helicopter and the
40:the Helicopter Museum (Weston)
1:
326:Specifications (Eland N.El.6)
259:at Farnborough SBAC Show 1955
774:, Putnam & Company Ltd,
287:Canadair CC-109 Cosmopolitan
148:Canadair CC-109 Cosmopolitan
111:gas-turbine engine built by
726:"British Aero Engines 1958"
442:31 lb/s (14 kg/s)
374:1,735 lb (787 kg)
362:120 in (3,000 mm)
343:Flight 29 August 1958 p.340
156:The Department of Transport
38:Napier Eland on display at
1015:
447:Specific fuel consumption
37:
28:
23:
994:1950s turboshaft engines
702:26 December 2007 at the
508:List of aircraft engines
368:36 in (910 mm)
989:Napier aircraft engines
706:Retrieved: 28 July 2009
460:2.0 eshp/lb (3.3 kW/kg)
348:General characteristics
255:Napier's Eland testbed
898:Turboprop / Turboshaft
770:Jackson, A.J. (1973),
456:Thrust-to-weight ratio
432:Overall pressure ratio
356:Single-shaft turboprop
336:
260:
160:time between overhauls
123:Design and development
732:: 340. 29 August 1958
424:Maximum power output:
333:
254:
144:Convair CV-240 family
583:. CANAV Books. 1989.
531:Gunston 1989, p.107.
270:Westland Westminster
172:Westland Westminster
545:"Napier Eland 504A"
387:10-stage axial flow
282:Airspeed Ambassador
257:Airspeed Ambassador
199:Powerplant for the
137:Rolls-Royce Limited
133:Airspeed Ambassador
470:Comparable engines
337:
310:Engines on display
261:
83:Major applications
976:
975:
607:978-0-921022-07-7
451:0.595 lb/h (eshp)
320:Weston-super-Mare
316:Helicopter Museum
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113:Napier & Son
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68:Napier & Son
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303:Vickers Varsity
298:Fairey Rotodyne
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201:Fairey Rotodyne
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176:Fairey Rotodyne
129:Vickers Varsity
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88:Fairey Rotodyne
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152:Convair CV-540
150:and the civil
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905:Coupled Naiad
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502:Related lists
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845:aero engines
804:
801:"Eland 1959"
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749:Bibliography
734:. Retrieved
729:
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692:
683:
659:
637:, retrieved
630:the original
625:
616:
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575:
570:, p. 26
568:Jackson 1973
563:
552:, retrieved
548:
527:
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491:Lycoming T55
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247:Applications
221:Eland N.El.7
216:Eland N.El.6
210:Eland N.El.4
196:Eland N.El.3
190:Eland N.El.1
158:reduced the
141:
126:
101:Napier Eland
100:
98:
18:
736:18 December
476:Allison T56
418:Performance
385:Compressor:
372:Dry weight:
227:Eland E.211
164:Allison T56
117:Rolls-Royce
58:aero-engine
983:Categories
626:WFEL.co.uk
514:References
409:Fuel type:
396:6 chambers
392:Combustors
379:Components
264:Turboshaft
105:turboshaft
74:First run
51:Turboshaft
366:Diameter:
340:Data from
276:Turboprop
239:Eland 508
233:Eland 504
139:in 1961.
109:turboprop
55:turboprop
968:Scorpion
864:Culverin
700:Archived
465:See also
412:Jet fuel
236:(N.El.6)
205:tip jets
185:Variants
179:gyrodyne
915:Gazelle
874:Javelin
807:article
803:a 1959
405:3-stage
401:Turbine
360:Length:
289:(CL-66)
961:Rocket
884:Rapier
869:Dagger
842:Napier
805:Flight
778:
763:
730:Flight
639:26 May
604:
554:26 May
24:Eland
936:Nomad
920:Naiad
910:Eland
889:Sabre
633:(doc)
519:Notes
354:Type:
77:1953
47:Type
952:Oryx
879:Lion
776:ISBN
761:ISBN
738:2017
641:2008
602:ISBN
556:2008
99:The
859:Cub
436:7:1
107:or
985::
728:.
668:^
648:^
624:,
547:,
536:^
322:.
318:,
119:.
42:.
834:e
827:t
820:v
740:.
610:.
458::
449::
434::
403::
394::
53:/
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
