31:
237:
terms it, "the result was an under-powered sailplane". The 25 hp (19 kW) engine gave the
Dragonfly a sea level climb rate of just 235 fpm (1.19 m/s) and a take-off run of 900 ft (274 m). As a result of the performance deficiencies only seven were produced. Three Dragonflys
177:, with the wooden two bladed 42 in (107 cm) propeller below the metal tail boom. The fuel tank holds 3 U.S. gallons (11 L; 2.5 imp gal), enough for self-launching, but not for cross-country powered flight.
696:
481:
899:
735:
730:
720:
689:
837:
682:
873:
577:
506:
421:
214:. The type certificate indicates that neither the engine nor the propeller need be certified. The type certificate specifies that the
814:
945:
920:
631:
935:
180:
The
Dragonfly shares the Baby Albatross's molded plywood fuselage pod, aluminium tube tail boom and strut-braced double
653:
573:
477:
203:
807:
755:
745:
740:
657:
139:
111:
241:
In March 2011 there were still four BB-1s registered in the US, two of which had been transferred to the
207:
847:
309:
222:
254:
930:
925:
800:
38:
A Bowlus/Nelson BB-1 Dragonfly in storage at the Steven F. Udvar-Hazy Center in Dulles, Virginia.
623:
510:
259:
242:
425:
940:
725:
894:
760:
705:
193:
158:
174:
8:
674:
598:
233:
In operational use the Nelson powerplant proved heavy and lacking in power and, as the
142:
627:
238:
were sold to private owners in the
Seattle region after having their engines removed.
555:
550:
534:
458:
30:
823:
781:
765:
389:
185:
181:
914:
559:
146:
124:
81:
71:
61:
197:
192:
is a plywood D-cell. The aircraft features dual controls and a retractable
189:
135:
128:
46:
878:
868:
863:
339:
215:
162:
343:
166:
196:
with a steerable nose wheel. The engine is started by a ratchet-wire
132:
538:, page 123. Soaring Society of America, November 1983. USPS 499-920
462:, page 118. Soaring Society of America, November 1983. USPS 499-920
170:
792:
200:
system that allows restarts in flight, as well as on the ground.
273:
Sailplane
Directory, Soaring and FAA Type Certificate Data Sheet
652:
572:
476:
221:
The
Dragonfly was later replaced in production by the improved
206:
certification of the type was achieved on 21 April 1947, with
352:
2-bladed wooden, 3 ft 6 in (1.07 m) diameter
210:
as the certificate holder and the type officially known as
704:
218:
engine of 28 hp (21 kW) may also be installed.
622:
548:
Bungey, Lloyd M. (May 1986). "Canada's Hidden Museum".
157:
The development of the
Dragonfly was sponsored by the
169:engine. The engine was mounted in the rear of the
332:3 U.S. gallons (11 L; 2.5 imp gal)
912:
554:. Vol. 30, no. 5. pp. 248–249.
504:
451:
449:
447:
445:
443:
419:
808:
690:
525:
265:
616:
482:"Aircraft Type Certificate Data Sheet GTC19"
440:
815:
801:
697:
683:
152:
379:5.56 lb/sq ft (27.1 kg/m)
472:
470:
468:
913:
646:
566:
547:
248:
228:
165:25 hp (19 kW) four cylinder
796:
678:
465:
415:
413:
411:
409:
407:
822:
299:47 ft 4 in (14.43 m)
13:
498:
212:Nelson Auxiliary Power Glider BB-1
14:
957:
404:
305:169 sq ft (15.7 m)
634:from the original on May 9, 2021
29:
746:BA-102 Two-Place Baby Albatross
654:Federal Aviation Administration
574:Federal Aviation Administration
478:Federal Aviation Administration
373:235 ft/min (1.19 m/s)
204:Federal Aviation Administration
946:Single-engined pusher aircraft
921:1940s United States sailplanes
658:"Make / Model Inquiry Results"
628:"Sailplanes in Our Collection"
591:
578:"Make / Model Inquiry Results"
541:
1:
397:
936:Aircraft first flown in 1947
507:"Hummingbird PG-185B Nelson"
161:to promote the use of their
140:Bowlus BA-100 Baby Albatross
138:that was developed from the
121:Bowlus/Nelson BB-1 Dragonfly
112:Bowlus BA-100 Baby Albatross
7:
383:
208:Nelson Aircraft Corporation
10:
962:
533:1983 Sailplane Directory,
457:1983 Sailplane Directory,
266:Specifications (Dragonfly)
223:Nelson Hummingbird PG-185B
887:
856:
830:
774:
766:1-S-2100 Senior Albatross
713:
422:"Dragonfly Bowlus Nelson"
346:, 25 hp (19 kW)
326:940 lb (426 kg)
320:580 lb (263 kg)
255:Canadian Museum of Flight
37:
28:
23:
184:wooden wing, covered in
624:National Soaring Museum
505:Activate Media (2006).
420:Activate Media (2006).
278:General characteristics
260:National Soaring Museum
243:National Soaring Museum
756:BS-100 Super Albatross
153:Design and development
895:William Hawley Bowlus
741:BA-100 Baby Albatross
706:William Hawley Bowlus
194:tricycle landing gear
188:aft of the spar. The
159:Nelson Engine Company
365:Maximum glide ratio:
175:pusher configuration
16:American motorglider
848:Hummingbird PG-185B
249:Aircraft on display
235:Sailplane Directory
229:Operational history
603:canadianflight.org
599:"Nelson Dragonfly"
908:
907:
790:
789:
551:Air International
117:
116:
953:
817:
810:
803:
794:
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708:aircraft designs
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535:Soaring Magazine
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523:
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518:
513:on July 15, 2011
509:. Archived from
502:
496:
495:
493:
491:
486:
474:
463:
459:Soaring Magazine
453:
438:
437:
435:
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428:on July 15, 2011
424:. Archived from
417:
360:
280:
108:
98:
58:
50:Type of aircraft
33:
21:
20:
961:
960:
956:
955:
954:
952:
951:
950:
931:Nelson aircraft
926:Bowlus aircraft
911:
910:
909:
904:
883:
852:
826:
824:Nelson Aircraft
821:
791:
786:
782:Nelson Aircraft
770:
726:Super Sailplane
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405:
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390:List of gliders
386:
356:
342:four cylinder,
276:
268:
251:
231:
186:aircraft fabric
155:
106:
96:
57:National origin
56:
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17:
12:
11:
5:
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843:BB-1 Dragonfly
840:
834:
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819:
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805:
797:
788:
787:
785:
784:
778:
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769:
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763:
761:SP-1 Paperwing
758:
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733:
728:
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694:
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679:
671:
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656:(March 2011).
645:
615:
590:
576:(March 2011).
565:
540:
524:
497:
480:(April 1947).
464:
439:
402:
401:
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396:
393:
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385:
382:
381:
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374:
371:Rate of climb:
368:
354:
353:
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333:
330:Fuel capacity:
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267:
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107:Developed from
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34:
26:
25:
15:
9:
6:
4:
3:
2:
958:
947:
944:
942:
941:Motor gliders
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378:
377:Wing loading:
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337:
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331:
328:
325:
324:Gross weight:
322:
319:
318:Empty weight:
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293:one passenger
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147:Hawley Bowlus
144:
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137:
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113:
110:
105:
104:
100:
95:
94:
90:
88:Introduction
87:
86:
83:
82:Hawley Bowlus
80:
77:
76:
73:
72:Hawley Bowlus
70:
68:Manufacturer
67:
66:
63:
62:United States
60:
55:
54:
48:
45:
42:
41:
36:
32:
27:
22:
19:
842:
750:
661:. Retrieved
648:
638:November 29,
636:. Retrieved
618:
606:. Retrieved
602:
593:
581:. Retrieved
568:
549:
543:
532:
527:
515:. Retrieved
511:the original
500:
488:. Retrieved
456:
430:. Retrieved
426:the original
394:
376:
370:
364:
357:
355:
349:
335:
329:
323:
317:
310:Aspect ratio
308:
302:
296:
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277:
275:
270:
269:
240:
234:
232:
220:
211:
202:
198:recoil start
190:leading edge
179:
156:
136:motor glider
129:strut-braced
127:, two seat,
120:
118:
97:Number built
47:Motor glider
18:
736:Albatross 2
731:Albatross 1
721:1912 glider
608:October 14,
531:Said, Bob:
455:Said, Bob:
358:Performance
350:Propellers:
340:Nelson H-44
336:Powerplant:
216:Nelson H-49
915:Categories
900:Ted Nelson
398:References
344:two stroke
303:Wing area:
167:two-stroke
24:Dragonfly
838:Bumblebee
775:Companies
751:Dragonfly
663:March 10,
583:March 10,
560:0306-5634
517:March 12,
490:March 10,
432:March 10,
297:Wingspan:
291:Capacity:
271:Data from
133:high-wing
78:Designer
831:Aircraft
714:Aircraft
632:Archived
626:(2011).
384:See also
173:pod, in
171:fuselage
125:American
857:Engines
888:People
558:
143:glider
123:is an
485:(PDF)
314:13.25
285:Crew:
91:1947
43:Role
879:H-63
874:H-59
869:H-49
864:H-44
665:2011
640:2021
610:2015
585:2011
556:ISSN
519:2011
492:2011
434:2011
367:18:1
338:1 ×
182:spar
163:H-44
119:The
287:one
145:by
917::
630:.
601:.
467:^
442:^
406:^
245:.
225:.
149:.
131:,
101:7
816:e
809:t
802:v
698:e
691:t
684:v
667:.
642:.
612:.
587:.
562:.
521:.
494:.
436:.
312::
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