170:
40:
289:
220:
212:. The inner surfaces of the fins and rudders were cambered as a conventional tail rudder would be but the outer surfaces were flat. The rudders operated independently, each with its own foot pedal. To turn to port, for example, the pilot would press only the lefthand pedal to swing its rudder outwards where it acted more like an
249:
well above the rear of the wing with its small, metal, two-bladed propeller just beyond the trailing edge significantly altered the fuselage, though it did not lengthen it. A raised roof line continued from the engine housing forward, providing space above the wing for three windows on each side for
275:
The glider version of the Delta I first flew in 1930 and took part in that year's Rhön contest. RRG then converted it into the powered Delta IM and Günther
Groenhoff conducted its first flight in 1931. Though take-offs have been described as "difficult", Groenhoff said it was light on the controls
230:
The fuselage of the original glider was a simple, oval-section, ply-covered nacelle. Its pilot sat in an enclosed cockpit under the wing, with a transparency in the wing edge ahead and another above. A pair of smaller windows on each side provided landing views. Landings were made on a nearly
276:
and capable of any manoeuvres expected of conventional aircraft including a loop. Independent observers at a demonstration did not see the latter but were impressed with its manoeuvrability, its apparent reserves of power, despite the small engine, and its reluctance to
258:
main legs, rubber-sprung mainwheels with low pressure tyres, a shrouded, steerable nosewheel and a little tailwheel. As a result the empty weight increased by 140 kg (310 lb) compared with the glider. The wing remained unchanged. Sometimes known as the
145:
contest in 1921. He was impressed by its initial stability, though a turn led to an uncontrolled spiral dive followed by breakup and the death of its pilot. In response he built several models and also designed the full size but disappointing
700:
843:
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833:
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853:
848:
640:
147:
635:
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155:
680:
670:
611:
250:
the observer and a more conventional, framed cockpit above and forward of the wing. The lower fuselage was modified by a fixed, tricycle
665:
929:
235:
with another transparency above it and a pair of windows on each side. The fuselage tapered to an angled vertical knife-edge.
934:
919:
568:
538:
158:, which was rather like the Espenlaub and was progressively modified. All of these aircraft had wings with sweep on both
442:
924:
17:
604:
176:
Its straight leading edge was swept at 20°. Following the standard practice of the time the wing had a single
151:
169:
39:
492:
243:
288:
939:
781:
597:
346:
219:
264:
189:
204:. As on the Storch, the wing tips were cropped and carried small, roughly triangular, ply-covered
166:. In 1930 his first design with a straight, unswept trailing edge flew; he named it the Delta I.
188:
close to the wing roots and further ply skin strengthened these areas. The rest of the wing was
735:
213:
201:
193:
517:
497:
459:
277:
239:
8:
232:
150:. After some time designing more conventional types and becoming Technical Head of the
620:
370:
192:. The thickness was decreased markedly by the upward slope of the underside, providing
177:
138:
184:
covering ahead of it, forming a torsion resistant D-box. There were diagonal internal
868:
766:
438:
437:(2nd revised ed.). Königswinter: EQIP Werbung & Verlag GmbH. pp. 50–5.
122:
flown in the early 1930s first as a glider and then powered. It was one of the first
119:
255:
373:
2-cylinder air-cooled horizontally-opposed piston engine, 22 kW (30 hp)
655:
888:
883:
873:
298:
Dimensions j2mcl
Planeurs, weights, power and performance Flight (October 1931)
246:
650:
913:
898:
893:
878:
797:
740:
720:
715:
710:
163:
154:
in 1925 he returned to the tailless glider layout. He began in 1927 with the
660:
756:
730:
251:
159:
135:
142:
725:
123:
56:
807:
802:
705:
589:
267:" after the leader of the first East-West North Atlantic crossing.
197:
776:
196:. The Delta's trailing edge was equally divided between outboard
181:
72:
231:
nacelle-length sprung skid. There was a second cockpit at about
134:
The first tailless aircraft that
Alexander Lippisch saw was the
771:
209:
185:
205:
208:
mounting longer, rounded rectangular, fabric covered
911:
280:. It flew until 1933 when it crashed heavily.
605:
283:
216:, turning the glider to port with its drag.
612:
598:
458:Lippisch, Alexander (1–15 February 1930).
460:"Les nouveaux essais d'avions sans queue"
428:
426:
424:
422:
420:
129:
563:
561:
559:
533:
531:
487:
485:
483:
481:
479:
477:
457:
287:
218:
168:
400:140 km/h (87 mph, 76 kn)
394:155 km/h (96 mph, 84 kn)
14:
912:
515:
509:
451:
432:
417:
406:4,700 m (15,400 ft) at least
270:
619:
593:
556:
528:
474:
330:13.24 m (43 ft 5 in)
324:4.25 m (13 ft 11 in)
141:, which flew briefly at the second
24:
25:
951:
342:25.8 m (278 sq ft)
336:4.5 m (14 ft 9 in)
263:, the motorized Delta was named "
646:Djävlar Anamma (Hols der Teufel)
38:
516:Abrial, P. (14 November 1930).
930:Single-engined pusher aircraft
13:
1:
767:Delta IV (DFS 39/Fieseler F3)
518:"Les Planeurs de Performance"
505:(41): 1008–9. 9 October 1931.
410:
935:Tailless delta-wing aircraft
920:Aircraft first flown in 1930
27:German two-seat glider, 1930
7:
493:"The New German "Tailless""
363:520 kg (1,146 lb)
242:, 30 hp (22 kW),
10:
956:
238:The addition in 1931 of a
118:was a German experimental
816:
790:
749:
628:
357:320 kg (705 lb)
284:Specifications (Delta IM)
46:
37:
32:
226:: the motorized Delta IM
925:1930s German sailplanes
433:Simons, Martin (2006).
303:General characteristics
47:The motorized Delta IM
791:Ground effect vehicles
736:Jacobs Hols der Teufel
522:L'Aérophile-Salon 1930
292:
227:
173:
130:Design and development
291:
254:with closely spaced,
222:
172:
435:Sailplanes 1920-1945
244:horizontally opposed
240:pusher configuration
569:"Lippisch Delta IM"
271:Operational history
90:Alexander Lippisch
539:"Lippisch Delta I"
371:Bristol Cherub III
293:
247:Bristol Cherub III
228:
174:
940:Lippisch aircraft
907:
906:
261:Lippisch Delta IM
120:tailless aircraft
112:
111:
16:(Redirected from
947:
772:Delta V (DFS 40)
750:Powered aircraft
614:
607:
600:
591:
590:
584:
583:
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579:
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507:
506:
489:
472:
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455:
449:
448:
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404:Service ceiling:
387:
305:
105:
69:
61:Type of aircraft
42:
30:
29:
21:
18:Lippisch Delta I
955:
954:
950:
949:
948:
946:
945:
944:
910:
909:
908:
903:
869:P.11 (Delta VI)
812:
786:
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588:
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547:
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68:National origin
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62:
28:
23:
22:
15:
12:
11:
5:
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573:j2mcl Planeurs
555:
543:j2mcl Planeurs
527:
508:
473:
450:
443:
415:
414:
412:
409:
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407:
401:
395:
392:Maximum speed:
381:
380:
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364:
358:
352:
343:
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331:
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319:
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285:
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190:fabric covered
164:trailing edges
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35:
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26:
9:
6:
4:
3:
2:
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798:Collins X-112
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654:
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649:
647:
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642:
641:Espenlaub E.2
639:
637:
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631:
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622:
615:
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444:3-9806773-4-6
440:
436:
429:
427:
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405:
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398:Cruise speed:
396:
393:
390:
389:
388:
386:
378:
375:
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368:
365:
362:
361:Gross weight:
359:
356:
355:Empty weight:
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252:undercarriage
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157:
153:
149:
148:Espenlaub E 2
144:
140:
137:
127:
125:
121:
117:
107:
102:
101:
97:
95:First flight
94:
93:
89:
86:
85:
81:
79:Manufacturer
78:
77:
74:
71:
66:
65:
58:
55:experimental
54:
51:
50:
45:
41:
36:
31:
19:
761:
690:
636:Falke (1921)
578:29 September
576:. Retrieved
572:
548:25 September
546:. Retrieved
542:
521:
511:
502:
496:
470:(3–4): 35–9.
467:
463:
453:
434:
403:
397:
391:
384:
382:
376:
366:
360:
354:
347:Aspect ratio
345:
339:
333:
327:
321:
318:one observer
315:
309:
302:
300:
295:
294:
274:
265:Hermann Kohl
260:
237:
229:
223:
200:and inboard
175:
136:Weltensegler
133:
115:
113:
104:Number built
686:Storch VIII
464:L'Aérophile
385:Performance
377:Propellers:
367:Powerplant:
116:RRG Delta I
914:Categories
676:Storch III
661:Grüne Post
411:References
340:Wing area:
156:RRG Storch
126:aircraft.
124:delta wing
57:delta wing
808:RFB X-114
803:RFB X-113
711:Professor
701:Delta III
681:Storch IV
671:Storch II
328:Wingspan:
316:Capacity:
296:Data from
256:trousered
233:mid-chord
202:elevators
87:Designer
844:P.01-118
839:P.01-117
834:P.01-116
829:P.01-115
824:P.01-111
817:Projects
762:Delta IM
757:Storch V
731:Fafnir 2
696:Delta II
666:Storch I
656:Prüfling
623:aircraft
621:Lippisch
379:2-bladed
214:airbrake
198:ailerons
194:dihedral
59:aircraft
33:Delta I
777:DFS 194
691:Delta I
651:Zögling
629:Gliders
334:Height:
322:Length:
210:rudders
182:plywood
180:, with
160:leading
73:Germany
782:Me 163
726:Fafnir
498:Flight
441:
186:struts
139:glider
889:P.13b
884:P.13a
706:Falke
524:: 80.
503:XXIII
310:Crew:
278:stall
224:above
98:1930
52:Role
899:P.20
894:P.15
879:P.13
874:P.12
864:P.10
859:P.09
854:P.08
849:P.04
741:DM-1
716:Wien
580:2019
550:2019
439:ISBN
369:1 ×
206:fins
178:spar
162:and
143:Rhön
114:The
82:RRG
721:Obs
351:6.8
312:one
152:RRG
916::
571:.
558:^
541:.
530:^
520:.
501:.
495:.
476:^
468:38
466:.
462:.
419:^
108:1
613:e
606:t
599:v
582:.
552:.
447:.
349::
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
