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both upper and lower wings. It had a biplane horizontal stabilizer with three rudders, and ailerons on all four wings. No fin was provided for the center rudder. All controls were given generous aerodynamic counterbalances to reduce control forces. The initial six-wheel undercarriage was later modified to four-wheels, and the radiator for the center engine was moved from in front of the pilot to between the engine and the propeller.
175:
400 hp (300 kW) engine in the nose, and were fabricated from laminated wood in the same manner as had been used in prior LWF fuselage designs, with three thin layers of wood laid at an angle to each other and separated with fabric. The four bay biplane wings were fitted with ailerons on
236:
in
September 1923, but it does not appear that this actually occurred. The sole prototype was scrapped in 1923. Two prototypes of the XNBS-2, a scaled-down twin-engine derivative of the Owl, were ordered in 1923, but this order was cancelled before construction began.
171:
It had a center nacelle with room for three crew members suspended on struts between the wings and flanked on either side by similarly braced tail booms. All three fuselages had a
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Although built for night air mail service (hence being named Owl), it failed to interest the Post Office.
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735:
NASA Technical
Memorandum 87611 : Some Comparisons of US and USSR Aircraft Design Developments
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LWF Model H Owl in its later form, with simplified undercarriage and relocated center radiator
188:
LWF model H Owl A.S.64012 showing off its twin booms and biplane tail with triple rudders.
630:
219:
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Between 1921 and 1922, the United States Army Air
Service evaluated it as a bomber at
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in 1920, but after being rejected for that role, the single prototype was sold to the
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891:
273:
211:
197:
396:
2-bladed LWF fixed pitch wood propellers, 9 ft 6 in (2.90 m) diameter
901:
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387:
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717:. Washington D.C.: Office of Air Force History, U.S. Air Force. pp. 124–126.
218:, however its performance was described as “adequate but not impressive.” General
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Scaled down twin-engined version. Order for two cancelled and none built.
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109 mph (175 km/h; 95 kn) at 6,000 ft (1,800 m)
691:
349:
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54:
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planned to evaluate the design during the bombing tests to sink the
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183:
128:
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V-12 water-cooled piston engines, 400 hp (300 kW) each
214:
in
Virginia when it was allocated Army Air Service serial number
543:
763:
741:. Hampton, Virginia 23665: Langley Research Center. p. 5.
163:
for evaluation as a bomber but failed to secure any orders.
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106 ft 8 in (32.51 m) (equal span wings)
411:
110 mph (180 km/h, 96 kn) at sea level
884:
798:
472:
Aircraft of comparable role, configuration, and era
663:Manufacturer's Aircraft Association, 1921, p.191
775:
8:
677:Manufacturer's Aircraft Association (1921).
587:
585:
583:
428:1,100 mi (1,800 km, 960 nmi)
593:"L-W-F Model H "OWL" - The Flying Dutchman"
537:
535:
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440:10 minutes to 6,000 ft (1,800 m)
686:. Boston: Small, Maynard. p. 191.
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744:
631:"1908-1921 USASC-USAAS Serial Numbers"
615:
613:
446:10.4 lb/sq ft (51 kg/m)
422:56 mph (90 km/h, 49 kn)
320:53 ft 9.5 in (16.396 m)
29:
462:400 ft (122 m) fully loaded
7:
732:Spearman, M. Leroy (December 1985).
715:Aviation in the U.S. Army, 1919-1939
345:2,216 sq ft (205.9 m)
249:biplane mailplane/bomber, one built.
928:1920s United States bomber aircraft
455:0.057 hp/lb (0.094 kW/kg)
791:Lowe, Willard & Fowler (L-W-F)
542:Eckland, K.O. (2 September 2008).
339:17 ft 6 in (5.33 m)
333:11 ft 0 in (3.35 m)
25:
568:Ficke, George (14 January 2000).
574:The Early Birds of Aviation, Inc
266:
38:
713:Maurer, Maurer (10 June 2004).
366:21,186 lb (9,610 kg)
360:13,386 lb (6,072 kg)
293:LWF model H Owl 3-view drawing
279:United States Army Air Service
161:United States Army Air Service
112:United States Army Air Service
1:
544:"American airplanes: Lo - Lu"
434:15,000 ft (4,600 m)
373:7,800 lb (3,500 kg)
204:, New York, on 22 May 1920.
938:Aircraft first flown in 1920
285:Specifications (model H Owl)
192:The Owl was first flown by
959:
505:List of Twin-boom aircraft
37:
32:
751:: CS1 maint: location (
654:Maurer, 2004, pp.124-126
680:Aircraft Year Book 1921
380:0.00 m (0 ft)
305:General characteristics
300:Aircraft Year Book 1921
483:Grahame-White Ganymede
294:
189:
167:Design and development
151:designed and built by
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27:1920s American biplane
292:
187:
141:was a large American
132:
378:Undercarriage track:
885:Built under licence
619:Spearman, 1985, p.5
597:www.buehlfield.info
180:Operational history
836:F-7 Reconnaissance
635:www.joebaugher.com
295:
190:
135:
108:Primary user
910:
909:
500:List of Trimotors
488:Thomas-Morse MB-4
438:Time to altitude:
139:L-W-F Model H Owl
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16:(Redirected from
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902:Martin/LWF NBS-1
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58:Type of aircraft
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570:"LWF OWL, 1919"
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153:LWF Engineering
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78:LWF Engineering
65:National origin
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409:Maximum speed:
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724:0-912799-38-2
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701:on 2020-01-02
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494:Related lists
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460:Take-off run:
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897:Douglas DT-2
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826:VH-1 Seagull
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703:. Retrieved
696:the original
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671:Bibliography
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638:. Retrieved
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600:. Retrieved
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551:. Retrieved
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478:Caproni Ca.5
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420:Stall speed:
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388:Liberty L-12
383:
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371:Useful load:
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173:Liberty L-12
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138:
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119:Number built
87:22 May 1920
33:Model H Owl
18:L-W-F XNBS-2
861:L Butterfly
856:J-2 Twin DH
799:LWF designs
640:12 February
602:12 February
553:12 February
402:Performance
394:Propellers:
384:Powerplant:
331:Wing chord:
246:Model H Owl
202:Long Island
917:Categories
705:2020-03-03
692:B000KIBI6C
511:References
451:Power/mass
343:Wing area:
226:New Jersey
157:mail plane
51:Mail plane
943:Trimotors
841:Mailplane
747:cite book
516:Citations
324:Wingspan:
298:Data from
260:Operators
231:USS
224:USS
143:twin-boom
933:Biplanes
793:aircraft
467:See also
241:Variants
233:Virginia
229:and the
146:trimotor
100:Retired
350:Airfoil
337:Height:
318:Length:
149:biplane
876:XNBS-2
721:
690:
426:Range:
271:
55:bomber
851:H Owl
739:(PDF)
699:(PDF)
684:(PDF)
354:USA 6
314:Three
312:Crew:
252:NBS-2
216:64012
200:, on
196:from
155:as a
103:1923
95:1920
47:Role
871:XT-3
866:MO-1
753:link
719:ISBN
688:ASIN
642:2020
604:2020
555:2020
386:3 Ă—
137:The
821:V-3
816:V-2
811:V-1
919::
749:}}
745:{{
633:.
612:^
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846:G
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806:V
783:e
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769:v
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727:.
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576:.
557:.
453::
352::
20:)
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