394:
227:
31:
150:
In 1952 static testing commenced with the
Spectre DSpe.l. The aircraft industry had no precedent for an engine which would gain in thrust with altitude and the required maximum thrust was estimated at between 2,000 lbf (8.9 kN) and 15,000 lbf (67 kN) thrust. The design was based
151:
on a variable thrust which could be throttled from 8,000 lbf (36 kN) to 2,000 lbf (8.9 kN). Design philosophy was matched to the mixed power concept of an aircraft having both a turbojet and rocket engine for maximum operational flexibility.
207:
Development flying of the SR.53 continued through 39 flights operating to Mach 1.33, and to altitudes at 55,000 ft (17,000 m), as research and construction proceeded on the SR.177, until its cancellation in 1958.
195:
engine, thus meeting a full mixed-power aircraft concept. In conjunction with the new engine, development had been undertaken with two major ancillaries, a peroxide starter for the gas turbine and a peroxide
170:
with pump stages both upstream and downstream, gauze catalyst packs, low-loss internal-flow turbine and the use of straight kerosene fuel. The aircraft tanks were to be pressurised to suppress pump
1320:
154:
Primary innovation was as the first to incorporate its turbo pump turbine upstream of its combustion chamber. Described then as low loss. Technological innovation embraced the
181:. From flight approval in Autumn 1956, flight experience again posed altitude starvation problems. Clearance was given for flight in the SR.53 prototype from May 1957.
155:
930:
1315:
1133:
204:
declaring that all future combat would be undertaken by computer-controlled missiles, and that crewed interceptors were now considered obsolete.
575:
147:
it used the same fuel tanks as the turbojet engine and if run at full power was expected to consume the full load in about seven minutes.
188:
to utilise a revised design
Spectre DSpe.5 engine together with a reheated supersonic capability 14,000 lbf (62 kN) thrust
1305:
923:
603:
1126:
645:
111:
in the 1950s. It was one element of the intended mixed power-plant for combination rocket-jet interceptor aircraft of the
310:, another programme subsequently cancelled after a single trial take-off of a Victor from the de Havilland aerodrome at
1211:
916:
291:
nuclear stand off bomb, with two chambers arranged vertically; a fixed thrust D.Sp.4 above a variable thrust D.Sp.5.
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218:
The
Spectre project was cancelled in October 1960, at a reported total cost of £5.75 million.
1171:
1166:
1095:
1111:
184:
In
October 1957 a contract was announced for a more advanced version of the aircraft as the
177:
It went through rig tests commencing in 1953, bench tests from mid-1954, and testing in two
626:
496:
336:
319:
197:
8:
1186:
1074:
1069:
1022:
342:
314:. These two engines were then used in combination to power the development rounds of the
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112:
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200:. Virtually on the heels of the announcement of the contract came the notorious
1237:
1221:
61:
614:
548:
Barske, U. M. (1960). "Development of Some
Unconventional Centrifugal Pumps".
1299:
1206:
1100:
104:
49:
908:
620:
1258:
331:
128:
71:
853:
300:
266:
Development of Dspe.2, constant thrust RDS.15 ATO – "limited quantities".
226:
171:
295:
The conventional
Spectre DSpe.5 had been developed alongside a DSpe.4
764:
670:(15th ed.). London: Sir Isaac Pitman & Sons Ltd. p. 40.
778:
368:
Preserved
Spectre engines are on display at the following museums:
307:
287:
A doubled version of this engine, used for early flight-testing of
192:
132:
30:
278:
10,000 lbf (44,000 N) thrust version intended for the
471:
835:
139:. The power could be controlled from 10–100% delivering 8,000
1141:
235:
144:
1321:
Rocket engines using hot cycle hydrogen peroxide propellant
1284:
728:
576:"Enterprise in Rocketry Activity at De Havilland Engine Co"
296:
211:
After merging of interests in 1959, it was manufactured by
140:
746:
717:
817:
803:
871:
792:
889:
1297:
685:
272:Further development of Dspe.1, variable thrust.
143:(35.7 kN) of thrust at full power. In the
1127:
938:
924:
476:8,000 lbf (36,000 N) (full power)
819:"British Aero Engines, 1957 : Spectre"
318:stand-off bomb, together with the peroxide
260:Development of Dspe.1 with variable thrust.
1134:
1120:
931:
917:
701:
412:
388:
1142:Aviation rocket engines and rocket motors
665:
322:, from its first flight in October 1959.
122:
1316:Rocket engines using kerosene propellant
659:
397:Spectre rocket engine on display at the
392:
254:Constant thrust version, simpler design.
230:Double Spectre engine on display at the
225:
622:"Cancelled projects: the list up-dated"
38:de Havilland Spectre on display at the
1298:
547:
408:Aircraft engines of the World 1959/60.
1115:
912:
668:Aircraft engines of the World 1959/60
363:
16:1950s British aircraft rocket engine
891:"Aero engines, 1961 : Spectre"
873:"Aero engines, 1959 : Spectre"
13:
867:(2599): 765–766. 14 November 1958.
678:
14:
1332:
849:(2559): 178–179. 7 February 1958.
562:10.1243/PIME_PROC_1960_174_037_02
162:, as formerly researched in the
29:
533:"More About the Super Sprite".
325:
742:(2432): 395. 2 September 1955.
638:
596:
585:. 4 March 1955. Archived from
568:
541:
526:
464:
373:Royal Air Force Museum Cosford
1:
1306:De Havilland aircraft engines
519:
452:
431:56.4 in (1,430 mm)
855:"Development of the Spectre"
831:(2536): 336. 30 August 1957.
634:(3049): 262. 17 August 1967.
399:de Havilland Aircraft Museum
378:De Havilland Aircraft Museum
299:variant, the latter for the
40:de Havilland Aircraft Museum
7:
1192:Armstrong Siddeley Screamer
885:(2617): 392. 20 March 1959.
780:"de Havilland engines 1957"
666:Wilkinson, Paul H. (1959).
485:
448:Hydrogen peroxide/Kerosene
221:
109:de Havilland Engine Company
10:
1337:
1197:Armstrong Siddeley Snarler
748:"At Farnborough Next Week"
232:Rolls-Royce Heritage Trust
1267:
1246:
1230:
1147:
1088:
1062:
1041:
1010:
949:
903:(2732): 79. 20 July 1961.
760:(2432). 2 September 1955.
437:27 in (690 mm)
190:de Havilland Gyron Junior
158:high-speed open-impeller
37:
28:
23:
1285:Rocket assisted take off
1275:List of aircraft engines
788:: 297–298. 8 March 1957.
774:: 450. 9 September 1955.
648:. Skomer. Archived from
606:. Skomer. Archived from
514:List of aircraft engines
423:Liquid-propellant rocket
202:1957 Defence White Paper
1311:Aircraft rocket engines
1280:List of rocket aircraft
1177:Bristol Siddeley BS.605
687:"Britain's New Engines"
413:General characteristics
389:Specifications (D.Sp.5)
284:DSpe.D.1 Double Spectre
1254:Type 4 Mark 1 Model 20
1042:Turboprops/turboshafts
813:: 245. 23 August 1957.
421:fully variable thrust
401:
383:East Midlands Aeropark
238:
123:Design and development
107:that was built by the
1096:Geoffrey de Havilland
550:Proc. Inst. Mech. Eng
396:
229:
1182:de Havilland Spectre
766:"Tomorrow's Engines"
627:Flight International
592:on 15 February 2006.
497:Bristol Siddeley 605
198:auxiliary power unit
168:regenerative cooling
101:de Havilland Spectre
1187:de Havilland Sprite
610:on 2 December 2008.
343:Handley Page Victor
305:Handley-Page Victor
280:Saunders-Roe SR.177
241:Variants included:
117:Saunders-Roe SR.177
1217:Walter HWK 109-509
1212:Dushkin D-1-A-1100
837:"Spectre ATO unit"
695:: 572. 6 May 1955.
491:Comparable engines
402:
364:Engines on display
353:Saunders-Roe SR.53
337:Blue Steel missile
316:Blue Steel missile
239:
127:The Spectre was a
92:Saunders-Roe SR.53
87:Major applications
1293:
1292:
1231:Hybrid propellant
1109:
1108:
160:centrifugal pumps
137:hydrogen peroxide
97:
96:
1328:
1268:Related articles
1247:Solid propellant
1222:Toku-Ro.2 (KR10)
1136:
1129:
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799:. 5 August 1957.
789:
775:
761:
743:
725:
724:. 5 August 1955.
712:
696:
672:
671:
663:
657:
656:
654:
646:"Double Spectre"
642:
636:
635:
618:
612:
611:
600:
594:
593:
591:
580:
572:
566:
565:
545:
539:
538:
530:
358:Vickers Type 559
349:only for trials)
248:Initial version.
213:Bristol Siddeley
88:
58:
33:
21:
20:
1336:
1335:
1331:
1330:
1329:
1327:
1326:
1325:
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1294:
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1202:Napier Scorpion
1143:
1140:
1110:
1105:
1084:
1058:
1037:
1006:
945:
937:
907:
730:"Rocket Motors"
681:
679:Further reading
676:
675:
664:
660:
655:on 5 June 2011.
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556:(11): 437–461.
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537:. 29 July 1955.
532:
531:
527:
522:
502:Napier Scorpion
488:
467:
455:
415:
391:
366:
328:
224:
131:engine burning
125:
113:Royal Air Force
86:
57:National origin
56:
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11:
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1238:RocketMotorTwo
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950:Piston engines
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166:organisation,
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115:, such as the
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62:United Kingdom
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1207:Dushkin S-155
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1101:Frank Halford
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584:
583:The Aeroplane
577:
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563:
559:
555:
551:
544:
536:
535:The Aeroplane
529:
525:
515:
512:
511:
510:
509:
508:Related lists
503:
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494:
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105:rocket engine
102:
93:
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85:
84:
80:
77:
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73:
70:
68:Manufacturer
67:
66:
63:
60:
55:
54:
51:
50:Rocket engine
48:
45:
44:
41:
36:
32:
27:
22:
19:
1259:Jetex engine
1181:
1079:
1075:Super Sprite
1033:Gyron Junior
992:Gipsy Twelve
967:Gipsy Junior
943:aero engines
940:de Havilland
900:
894:
882:
876:
864:
858:
846:
840:
828:
822:
808:
794:
783:
769:
757:
751:
739:
733:
719:
711:: 838. 1955.
706:
703:"Paris Show"
690:
667:
661:
650:the original
640:
631:
625:
616:
608:the original
598:
587:the original
582:
570:
553:
549:
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534:
528:
507:
506:
490:
489:
479:
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458:
445:
440:
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428:
418:
407:
404:
403:
367:
346:
332:Aerfer Leone
326:Applications
294:
240:
217:
210:
206:
183:
176:
153:
149:
129:bipropellant
126:
100:
98:
72:de Havilland
18:
1149:Liquid fuel
987:Gipsy Queen
977:Gipsy Major
972:Gipsy Minor
793:"Spectre".
718:"Spectre".
465:Performance
441:Dry weight:
301:Avro Vulcan
1300:Categories
997:Gipsy King
520:References
480:Burn time:
453:Components
289:Blue Steel
174:problems.
172:cavitation
78:First run
1089:Designers
1011:Turbojets
982:Gipsy Six
805:"Spectre"
604:"Spectre"
435:Diameter:
405:Data from
308:V bombers
179:Canberras
486:See also
312:Hatfield
222:Variants
193:turbojet
133:kerosene
24:Spectre
1162:XR-4K14
1080:Spectre
1063:Rockets
653:(image)
429:Length:
425:engine
275:DSpe.5A
1157:XR-4A3
1070:Sprite
1023:Goblin
896:Flight
878:Flight
860:Flight
842:Flight
824:Flight
810:Flight
796:Flight
785:Flight
771:Flight
753:Flight
735:Flight
721:Flight
708:Flight
692:Flight
472:Thrust
459:Pumps:
339:(Avro)
269:DSpe.5
263:DSpe.4
257:DSpe.3
251:DSpe.2
245:DSpe.1
186:SR.177
164:Walter
156:Barske
1172:XLR99
1167:XLR11
1049:Gnome
1028:Gyron
1018:Ghost
962:Gipsy
957:Ghost
590:(PDF)
579:(PDF)
446:Fuel:
419:Type:
347:XA930
236:Derby
145:SR.53
103:is a
81:1952
46:Type
1002:Iris
303:and
297:RATO
135:and
99:The
1054:Gem
558:doi
554:174
320:APU
141:lbf
1302::
901:80
899:.
893:.
883:75
881:.
875:.
865:74
863:.
857:.
847:73
845:.
839:.
829:72
827:.
821:.
807:.
782:.
768:.
758:68
756:.
750:.
740:68
738:.
732:.
705:.
689:.
632:92
630:.
624:.
581:.
552:.
234:,
215:.
119:.
1135:e
1128:t
1121:v
932:e
925:t
918:v
564:.
560::
474::
345:(
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