204:. The shroud was intended to protect the propeller from the rotor downwash, to guard the propeller from objects on the ground and protect ground staff from the propeller. Air deflected from the blades balanced rotor torque automatically, using information from a hydraulic torque sensor, and also controlled
230:
suggests the helicopter continued to be tested through 1949 and that its control system worked well, though it was damaged in two accidents, after which development ended. Thus the intended production machines, with more refined cockpit glazing, faired rotor gear and incorporating lessons learned
181:
could be trimmed out by longitudinal movements of the hub. The servo blades also served as rotor speed governors; restrained by springs, they could slide outward as the rotor speed began to increase, increasing the pitch and the associated
173:, those on the Norélic were themselves flappable and were intended to control both cyclic pitch and the flapping amplitude of the main rotors. Thus the cockpit cyclic pitch control was absent, and instead
235:
which shared a similar control system, though horizontal surfaces were added within the shroud for pitch control. This first flew in July 1950 but just a year later was itself abandoned after accidents.
177:
was produced by sideways motion of the hub via its parallel support pillars, which separated the centres of lift and gravity. Effects due to variations in the position of the
193:
was conical, tapering to the tail. Instead of a side-mounted anti-torque tail rotor the Nord used a system patented by its designer where an axially driven
186:
to decrease the speed. Collective pitch was thus primarily determined by throttle setting, though there was a collective pitch override lever.
122:
497:
905:
519:
910:
209:
205:
174:
451:
399:
101:
with several novel control features. Only one prototype was built, though it was intended to lead to series production.
231:
from the prototype, never appeared. Instead Bruel designed a smaller, lighter, less powerful, single seat machine, the
900:
374:
117:
control. Its two crew sat side by side with large, single curvature transparencies in front of them but with open
200:, rotating within a circular shroud, forced air through four rotatable, vertical airfoils mounted on the shroud
527:
512:
428:
559:
146:
197:
137:
helicopter with its engine in this orientation. The driveshaft rose through the fuselage to the
895:
505:
584:
813:
554:
456:
433:
404:
194:
294:
138:
8:
169:
mounted on rods at right-angles to the rotors. Though reminiscent of the servos on the
792:
248:
Flight, 8 April 1948, p.393 (estimated performance) and Flight, 9 March 1950, pp.310-1
818:
766:
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370:
178:
150:
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110:
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183:
889:
823:
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682:
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634:
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201:
126:
54:
849:
771:
761:
619:
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216:
114:
740:
589:
162:
336:
3,000 m (9,842 ft) ;hover ceiling 1,524 m (5,000 ft)
870:
220:
170:
130:
98:
28:
797:
756:
724:
708:
703:
649:
644:
639:
629:
604:
212:). In addition the propeller provided thrust for forward propulsion.
145:
support. The Norélic had a two-blade articulated rotor with undamped
549:
190:
154:
141:, which was slightly offset forwards on a two side-by-side pillar,
166:
118:
529:
Société nationale de constructions aéronautiques du Nord (SNCAN)
113:
helicopter with an unusual anti-torque system, without a manual
475:. London: Sampson, Low, Marston and Co. Ltd. pp. 149–150c.
460:. Vol. LIX, no. 2191. 18 January 1951. pp. 80–2.
134:
43:
437:. Vol. LVII, no. 2150. 9 March 1950. pp. 310–1.
865:
528:
408:. Vol. LIII, no. 2050. 8 April 1948. p. 393.
208:. Two horizontal surfaces controlled fore and aft motion (
157:
from hub to tip and were each built around a single solid
226:
The Norélic made its first flight on 17 November 1947.
161:
with ribs and a thin metal skin, all clamped together.
223:
legs and a tailheel mounted on the propeller shroud.
165:
was automatically controlled by small servo or pilot
324:
155 km/h (96 mph, 84 kn) at 75% power
887:
513:
109:The Norélic was a prototype two-seat, single
429:"Helicopter development in France:Nord 1700"
360:
358:
356:
520:
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446:
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423:
421:
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394:
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390:
388:
386:
479:
318:185 km/h (115 mph, 100 kn)
104:
485:
470:
364:
353:
473:Jane's All the World's Aircraft 1950-51
441:
412:
383:
330:400 km (250 mi, 220 nmi)
888:
129:was immediately behind them, with its
121:sides. The 119 kW (160 hp)
501:
464:
303:10.00 m (32 ft 10 in)
133:vertical; the Norélic was the first
369:. Paris: Éditions EPA. p. 65.
275:3.30 m (10 ft 10 in)
13:
488:Les Avions Francais de 1944 à 1964
367:Les Avions Francais de 1944 à 1964
14:
922:
906:Single-engined piston helicopters
342:5.36 m/s (1,056 ft/min)
297:radial, 120 kW (160 hp)
269:7.0 m (23 ft 0 in)
239:
1:
346:
911:Aircraft first flown in 1947
281:510 kg (1,124 lb)
7:
287:948 kg (2,090 lb)
10:
927:
471:Bridgman, Leonard (1950).
149:; the blades had the same
858:
832:
806:
780:
749:
733:
717:
691:
665:
658:
540:
486:Gaillard, Pierre (1990).
365:Gaillard, Pierre (1990).
18:
901:1940s French helicopters
400:"The Nord 1700 Norelic"
254:General characteristics
189:Behind the engine the
105:Design and development
301:Main rotor diameter:
95:SNCAN N.1700 Norélic
285:Max takeoff weight:
27:Prototype two seat
219:had mainwheels on
883:
882:
879:
878:
179:centre of gravity
91:Nord 1700 Norélic
87:
86:
73:17 November 1947
918:
718:Army Observation
663:
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522:
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499:
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477:
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468:
462:
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452:"The Helicopter"
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334:Service ceiling:
311:
256:
80:
40:
32:Type of aircraft
16:
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917:
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886:
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734:Maritime patrol
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666:Light transport
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147:flapping hinges
125:seven-cylinder
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39:National origin
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490:. p. 110.
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340:Rate of climb:
337:
331:
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319:
316:Maximum speed:
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241:
240:Specifications
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53:SNCA du Nord (
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9:
6:
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2:
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896:Nord aircraft
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781:Target drones
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533:Nord Aviation
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376:2 85120 350 9
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322:Cruise speed:
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279:Empty weight:
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202:trailing edge
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127:radial engine
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100:
97:was a French
96:
92:
82:
77:
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72:
70:First flight
69:
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56:
55:Nord Aviation
52:
50:Manufacturer
49:
48:
45:
42:
37:
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26:
23:
22:
17:
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543:designations
541:Manufacturer
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455:
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403:
366:
339:
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327:
321:
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260:
253:
251:
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244:
243:
232:
227:
225:
217:landing gear
214:
188:
115:cyclic pitch
108:
94:
90:
88:
79:Number built
65:André Bruel
833:Helicopters
309:Performance
291:Powerplant:
163:Blade pitch
123:Mathis G.7R
890:Categories
807:Transports
347:References
295:Mathis GR7
221:cantilever
171:Hiller 360
131:crankshaft
99:helicopter
29:helicopter
245:Data from
233:Nord 1710
198:propeller
139:rotor hub
62:Designer
859:Missiles
824:Noratlas
750:Research
692:Trainers
683:Pingouin
678:Norécrin
673:Noralpha
535:aircraft
191:fuselage
167:airfoils
155:aerofoil
19:Norélic
850:Norelfe
840:Norélic
819:Norazur
772:Norelfe
767:Griffon
762:Gerfaut
699:Norélan
659:By role
273:Height:
267:Length:
119:cockpit
741:Noroit
457:Flight
434:Flight
405:Flight
373:
328:Range:
228:Flight
195:pusher
143:faired
135:French
44:France
871:AA.20
866:SS.10
798:CT 41
793:CT 20
788:CT 10
261:Crew:
210:pitch
151:chord
111:rotor
24:Role
845:1710
757:1601
725:3400
709:3200
704:2800
650:3400
645:3200
640:2800
635:2500
630:2200
625:2100
620:1750
615:1710
610:1700
605:1601
600:1500
595:1405
590:1400
585:1300
580:1220
575:1200
570:1100
565:1000
371:ISBN
293:1 ×
215:Its
184:drag
175:roll
159:spar
153:and
89:The
814:262
560:500
555:262
550:260
263:Two
206:yaw
93:or
892::
454:.
443:^
431:.
414:^
402:.
385:^
355:^
83:1
57:)
531:/
521:e
514:t
507:v
379:.
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