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366:, had improved performance at low level, being able to sustain 450 hp (340 kW) up to 1,500 ft (460 m) while still matching the SB's power at high altitudes. The SB and T1B2, and later versions of these with similar performance, were the most popular Wasp Junior models. One later development of the T1B2, the
336: in (132 mm), giving a 27% lesser total displacement. The Wasp Junior used many parts from the Wasp and even had the same mounting dimensions, allowing an aircraft to easily use either the smaller or the larger engine. The first run of the Wasp Junior was in 1929, and sales began in 1930. The initial version, the
378:, could sustain 525 hp (391 kW) at an altitude of 9,500 ft (2,900 m) and could produce 600 hp (450 kW) for takeoff. It also included reduction gearing to allow the high-revving engine to drive a propeller at suitable speeds, hence the "-G" suffix. Aviator
1900:. This personal collection of museum aircraft engine photos has R-985 photos under the sections titled "From Canada's National Aviation Museum in Ottawa, ON", "From the SAC Museum in Ashland, NE", and "From the Museum of Flight new galleries in Seattle, WA".
508:
Pratt & Whitney ceased production of the Wasp Junior in 1953, having built 39,037 engines. Many Wasp Junior engines are still in use today in older bush planes and agricultural planes, as well as in antique aircraft. Some antique aircraft, such as the
452:. Military versions of existing Wasp Junior-powered civilian aircraft were also produced, such as the military derivatives of the Beech 18, Beech Staggerwing, Grumman Goose, and Howard DGA-15. The Wasp Junior also powered some versions of the British
297:
Wasp
Juniors have powered numerous smaller civil and military aircraft, including small transports, utility aircraft, trainers, agricultural aircraft, and helicopters. Over 39,000 engines were built, and many are still in service today.
347:, with various suffixes denoting different military engine models. However, Pratt & Whitney never adopted the R-985 designation scheme for its civilian Wasp Juniors, identifying them simply by name and model (e.g. "Wasp Junior A").
362:, which was tuned for best performance at altitude and could sustain 400 hp (300 kW) at altitudes up to 5,000 ft (1,500 m), with 450 hp (340 kW) available for takeoff. A still later model, the
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During the mid-1930s, Pratt & Whitney developed a still greater improvement of the Wasp Junior, the "C series", with an even higher compression ratio and RPM limit. The only type produced in this series, the
398:
Early versions of the Wasp Junior were used in various small civilian and military utility aircraft, but only in limited numbers. The type became more popular later in the 1930s. It was selected for the
358:, which could maintain 420 hp (310 kW) at sea level and could reach 440 hp (330 kW) for takeoff. The TB was tuned for best performance at sea level; it was soon joined by the
310:
to compete in the market for medium-sized aircraft engines. Like its larger brother, the Wasp Junior was an air-cooled, nine-cylinder radial, with its power boosted by a gear-driven single-speed
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525 hp (391 kW) at 2,700 RPM up to 9,500 ft (2,900 m), 600 hp (450 kW) at 2,850 RPM for takeoff
Experimental high-powered version with propeller reduction gearing.
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400 hp (300 kW) at 2,200 RPM up to 5,000 ft (1,500 m), 450 hp (340 kW) at 2,300 RPM for takeoff. Common B-series versions were rated for performance at altitude.
513:, which originally used other engines, have had them replaced with the Wasp Junior to provide more power or for easier maintenance, since parts for the Wasp Junior are readily available.
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Allied
Aircraft Piston Engines of World War II: History and Development of Frontline Aircraft Piston Engines Produced by Great Britain and the United States During World War II
474:
After World War II, many military-surplus aircraft with Wasp Junior engines entered the civilian market. New designs based on the Wasp Junior were also introduced, such as the
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420 hp (310 kW) at 2,200 RPM at sea level, 440 hp (330 kW) at 2,300 RPM for takeoff. Early B-series versions rated for sea-level performance.
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This is the highest altitude at which the engine can achieve its full continuous power rating. Above this altitude, power falls off with height as with a
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of 985 in (16 L); initial versions produced 300 hp (220 kW), while the most widely used versions produce 450 hp (340 kW).
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450 hp (340 kW) at 2,300 RPM up to 1,500 ft (460 m) and for takeoff. Common B-series versions with improved sea-level performance
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471:. However, during the war, the Wasp Junior was far more widely used in aircraft than the R-975, and Wright ceased production of the R-975 in 1945.
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450 hp (340 kW) at 2,300 RPM up to 2,300 ft (700 m) and for takeoff
Vertically mounted development of T1B3, for helicopters
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Aviacionnye motory voennykh vozdushnykh sil inostrannykh gosudarstv (Авиационные моторы военных воздушных сил иностранных государств)
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400 hp (300 kW) at 2,200 RPM up to 5,000 ft (1,500 m); 450 hp (340 kW) at 2,300 RPM for takeoff
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Image
Galleries by Gary and Janet Brossett: Experimental Aircraft Association AirVenture Museum - Oshkosh, WI
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Pratt & Whitney followed the Wasp Junior A with more powerful models in the "A series". These had higher
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U.S. military versions: R-985-13, -17, -23, -33, -48, -50; R-985-AN-2, -4, -6, -6B, -8, -10, -12, -12B, -14B
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twin-engined trainers. The demands of World War II led to the production of many thousands of Wasp
Juniors.
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Image
Galleries by Gary and Janet Brossett: National Museum of Naval Aviation in Pensacola, Florida
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300 hp (220 kW) at 2,000 RPM at sea level and for takeoff. First production version.
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http://neam.org/index.php?option=com_content&view=article&layout=edit&id=1075
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twin-engined airliner, as well as for other small twin-engined civil transports like the
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Image
Galleries by Gary and Janet Brossett: Pima Air and Space Museum in Tucson, Arizona
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with this engine in 1937, setting a speed and altitude record and placing third in the
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data sheet for the Wasp Junior SB; dimensions from Pratt & Whitney (1956), p. A2.
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2315:: Gosudarstvennoe voennoe izdatelstvo Narkomata Oborony Soyuza SSR. Archived from
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Image
Galleries by Gary and Janet Brossett: Hill Aerospace Museum near Ogden, Utah
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Pratt & Whitney developed the R-985 Wasp Junior as a smaller version of the
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U.S. military versions: R-985-25, -27, -39, -39A; R-985-AN-1, -1A, -3, -3A
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As World War II arrived, the U.S. military chose the Wasp Junior for the
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World
Encyclopedia of Aero Engines: From the Pioneers to the Present Day
2068:
1989:
1917:
418:. It was also used in single-engined civilian utility aircraft like the
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Image Galleries by Gary and Janet Brossett: Images from RAF Cosford
463:
Until the end of the war, the Wasp Junior's closest competitor was
290:
Aircraft Company from the 1930s to the 1950s. These engines have a
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370:, was especially designed for vertical mounting in helicopters.
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29:
1638:
FAA Type Certificate Data Sheet TC 5E-1, see notes 5 and 6.
887:: This engine has been sectioned and motorized for display.
390:. However, the SC-G never got past the experimental stage.
2297:. Available from the Aircraft Engine Historical Society's
845:
A Pratt & Whitney R-985 Wasp Junior on display at the
1206:
Specifications for different R-985 Wasp Junior variants
867:
Some museums which have Wasp Junior engines on display:
1029:
9-cylinder supercharged air-cooled radial piston engine
2332:
2258:. Warrendale, Pennsylvania: SAE International, 1995.
548:
U.S. military versions: R-985-9, -11, -11A, -21, -46
343:
The U.S. military designated the Wasp Junior as the
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60:. Unsourced material may be challenged and removed.
967:(formerly the Strategic Air Command Museum) near
2275:Index of Wasp Jr. & R-985 Designated Engines
2001:. The section "Images from Gary Brossett" has
1951:National Museum of the United States Air Force
928:National Museum of the United States Air Force
314:. Its cylinders were smaller, however, with a
3197:
2450:
8:
2212:Queensland Air Museum: The Engine Collection
149:Pratt & Whitney R-985 AN-1 mounted in a
1441:Pratt & Whitney R-1535 Twin Wasp Junior
268:Pratt & Whitney R-1535 Twin Wasp Junior
3204:
3190:
3182:
2457:
2443:
2435:
2331:data sheets, all available from the FAA's
1876:
1874:
1872:
279:is a series of nine-cylinder, air-cooled,
3958:Aircraft air-cooled radial piston engines
2024:. "Pratt & Whitney R-985 Wasp Junior"
1713:Pratt & Whitney Wasp Jr. R-985-AN-14B
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1557:
722:(LC-DW Solution, LC-DW300 Super Solution)
120:Learn how and when to remove this message
2244:. 5th edition, Stroud, UK: Sutton, 2006.
1204:
856:Pratt & Whitney R-985 on display at
1688:FAA Type Certificate Data Sheet TC 5E-1
1583:
1581:
1579:
1525:
1523:
1490:
1395:
881:Washington Dulles International Airport
575:U.S. military versions: R-985-AN-5, -7.
69:"Pratt & Whitney R-985 Wasp Junior"
3173:Pratt & Whitney Canada aeroengines
1684:
1682:
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1623:
1621:
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1617:
1615:
1613:
1611:
1609:
1607:
1597:
1595:
1593:
1587:FAA Type Certificate Data Sheet ATC 39
1376:600 hp (450 kW) at 2,850 RPM
1370:525 hp (391 kW) at 2,700 RPM
1344:450 hp (340 kW) at 2,300 RPM
1318:450 hp (340 kW) at 2,300 RPM
1298:450 hp (340 kW) at 2,300 RPM
1292:400 hp (300 kW) at 2,200 RPM
1272:440 hp (330 kW) at 2,300 RPM
1266:420 hp (310 kW) at 2,200 RPM
1240:300 hp (220 kW) at 2,000 RPM
340:, produced 300 hp (224 kW).
131:
2040:Pratt & Whitney R-985 Wasp Junior
1697:Pratt & Whitney (1956), pp. A2-A3
1629:FAA Type Certificate Data Sheet E-123
1601:FAA Type Certificate Data Sheet TC 85
1004:Specifications (R-985 Wasp Junior SB)
277:Pratt & Whitney R-985 Wasp Junior
7:
3963:Pratt & Whitney aircraft engines
2169:Aircraft Engine Historical Society,
2143:Pratt & Whitney R385 Wasp Junior
2061:Aircraft Engine Historical Society,
1982:Aircraft Engine Historical Society,
1910:Aircraft Engine Historical Society,
1836:Aircraft Engine Historical Society,
1734:Aircraft Engine Historical Society,
1536:Pratt & Whitney - R-985 Wasp Jr.
1508:. January 10, 1930. pp. 101–102
58:adding citations to reliable sources
3927:US military gas turbine aeroengines
2397:Type Certificate Data Sheet TC 5E-1
1143:driven at 10 times crankshaft speed
769:helicopter (and S-51 civil version)
2343:Type Certificate Data Sheet ATC 39
731:Lockheed Model 12-A Electra Junior
25:
2379:Type Certificate Data Sheet TC 85
2361:Type Certificate Data Sheet E-123
2159:. (Note page title has an error.)
1674:Pratt & Whitney (1956), p. A1
1656:Pratt & Whitney (1956), p. A3
1573:Pratt & Whitney (1956), p. A2
919:National Museum of Naval Aviation
405:Lockheed Model 12A Electra Junior
1794:) of its R-985 teardown display.
974:Canada Aviation and Space Museum
661:de Havilland Canada DHC-2 Beaver
480:de Havilland Canada DHC-2 Beaver
210:de Havilland Canada DHC-2 Beaver
140:
34:
2333:Regulatory and Guidance Library
2326:Federal Aviation Administration
1436:Pratt & Whitney R-1340 Wasp
1424:Pratt & Whitney Wasp series
256:Pratt & Whitney R-1340 Wasp
45:needs additional citations for
27:9-cylinder radial engine family
3108:Pratt & Whitney Rocketdyne
1123:per cylinder, pushrod-actuated
983:Royal Air Force Museum Cosford
965:Strategic Air and Space Museum
663:and L-20/U-6 military versions
536:U.S. military version: R-985-1
1:
3953:1920s aircraft piston engines
3166:Joint development aeroengines
2190:a photo of the museum's R-985
2003:a photo of the museum's R-985
1931:a photo of the museum's R-985
1857:a photo of the museum's R-985
1755:a photo of the museum's R-985
1708:National Air and Space Museum
1408:Supercharger#Altitude effects
1094:45.75 in (1,162 mm)
1088:41.59 in (1,056 mm)
873:National Air and Space Museum
312:centrifugal type supercharger
3932:Piston engine configurations
2116:Pratt & Whitney R-985-14
1373:9,500 ft (2,900 m)
1295:5,000 ft (1,500 m)
748:(in aftermarket conversions)
736:Max Holste MH.1521 Broussard
647:(in aftermarket conversions)
388:Bendix transcontinental race
2035:Pima Air & Space Museum
1985:National Museum of the USAF
946:Pima Air & Space Museum
877:Steven F. Udvar-Hazy Center
726:Lockheed Model 10-A Electra
382:flew a special Model D-17W
3979:
3103:Pratt & Whitney Canada
2393:Wasp Jr. military models:
1404:naturally aspirated engine
1388:864 lb (392 kg)
1362:684 lb (310 kg)
1347:2,300 ft (700 m)
1336:653 lb (296 kg)
1321:1,500 ft (460 m)
1310:640 lb (290 kg)
1284:640 lb (290 kg)
1258:565 lb (256 kg)
1082:985 in (16.14 L)
941:Windsor Locks, Connecticut
847:Frontiers of Flight Museum
746:Naval Aircraft Factory N3N
401:Lockheed Model 10A Electra
3914:
3162:
2111:Southern Museum of Flight
1956:Pratt & Whitney R-985
1132:Single-speed gear-driven
1103:640 lb (290 kg)
955:Southern Museum of Flight
148:
139:
134:
3149:Richard "Dick" Soderberg
2645:Free-piston gas turbines
2100:) of the museum's R-985.
2080:. This page has photos (
1475:List of aircraft engines
1201:0.625 hp/lb (1.03 kW/kg)
1183:0.406 hp/in³ (18.5 kW/L)
830:Wedell-Williams Model 44
741:McDonnell XHJH Whirlaway
645:Boeing-Stearman Model 75
620:and military derivatives
554:Wasp Junior SB, SB2, SB3
511:Boeing-Stearman Model 75
3898:W-configuration inline)
3227:H-configuration inline)
3215:piston aircraft engine
2357:Wasp Jr. SB, T1B2, B4:
2209:Queensland Air Museum,
1226:Supercharger gear ratio
1021:General characteristics
442:basic training aircraft
18:Pratt and Whitney R-985
3878:VG (inverted-V inline)
3303:L (single-bank inline)
3275:IV (inverted-V inline)
3213:United States military
2138:Royal Air Force Museum
1463:Wright R-975 Whirlwind
1073: in (132 mm)
1051: in (132 mm)
937:New England Air Museum
864:
849:
800:Vought OS2U Kingfisher
624:Beechcraft Staggerwing
563:Wasp Junior T1B2, T1B3
524:
446:Vought OS2U Kingfisher
420:Beechcraft Staggerwing
384:Beechcraft Staggerwing
302:Design and development
222:Vought OS2U Kingfisher
160:Air-cooled 9-cylinder
3855:V (inverted-V inline)
1805:Hill Aerospace Museum
1197:Power-to-weight ratio
993:Queensland Air Museum
900:Hill Aerospace Museum
891:EAA AirVenture Museum
855:
844:
784:SIAI-Marchetti SM.102
519:
491:agricultural aircraft
3777:V (upright-V inline)
3144:Frederick Rentschler
2422:. Covington Aircraft
1810:"Wasp Junior" Engine
1764:and several photos (
1744:on December 12, 2008
1543:on February 10, 2010
820:Weatherly 201 series
805:Vultee BT-13 Valiant
789:Spartan Executive 7W
752:North American BT-14
710:(Rimowa F13 replica)
687:Grumman G-164 Ag Cat
667:Douglas C-26 Dolphin
484:Max Holste Broussard
439:North American BT-14
435:Vultee BT-13 Valiant
226:Vultee BT-13 Valiant
162:radial piston engine
54:improve this article
3067:Aeroderivative gas
2466:Pratt & Whitney
2288:on October 31, 2010
2270:Pratt & Whitney
2179:on October 13, 2008
1531:Pratt & Whitney
1499:"The 'Wasp Junior'"
1430:Related development
1207:
1139:supercharger, with
959:Birmingham, Alabama
914:Seattle, Washington
815:Waco SRE Aristocrat
618:Beechcraft Model 18
545:Wasp Junior TB, TB2
465:Wright Aeronautical
416:amphibious aircraft
409:Beechcraft Model 18
394:Operational history
288:Pratt & Whitney
206:Beechcraft Model 18
202:Beechcraft Model 17
182:Pratt & Whitney
3217:designation system
2577:Twin Wasp (R-2000)
2572:Twin Wasp (R-1830)
2219:on October 4, 2009
2195:2011-04-11 at the
2096:2011-04-11 at the
2086:2011-04-11 at the
2071:on August 27, 2009
2008:2011-04-10 at the
1936:2011-04-11 at the
1920:on August 27, 2009
1862:2011-04-11 at the
1846:on August 27, 2009
1790:2011-04-11 at the
1780:2011-04-11 at the
1770:2011-04-11 at the
1760:2011-04-11 at the
1447:Comparable engines
1205:
923:Pensacola, Florida
895:Oshkosh, Wisconsin
865:
858:Museum of Aviation
850:
837:Engines on display
779:Snow S-2B and S-2C
693:Grumman G-21 Goose
613:Barkley-Grow T8P-1
602:Air Tractor AT-300
525:
520:R-985 fitted to a
495:Snow S-2B and S-2C
380:Jacqueline Cochran
352:compression ratios
214:Grumman G-21 Goose
197:Major applications
135:R-985 Wasp Junior
3940:
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3179:
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2635:XH-3130 (XH-3730)
2305:Tsygulev (1939).
1881:Michel Charette,
1392:
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1223:Compression ratio
1217:Critical altitude
1214:Power, continuous
1188:Compression ratio
1151:aviation gasoline
969:Ashland, Nebraska
682:Griffon Lionheart
640:Berliner-Joyce OJ
428:Spartan Executive
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16:(Redirected from
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2622:H piston engines
2587:Twin Wasp Junior
2469:aircraft engines
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1884:Aircraft Engines
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989:, United Kingdom
910:Museum of Flight
796:SR-9F and SR-10F
714:Koolhoven F.K.51
672:Fleetwings BT-12
626:D17S, D17W, G17S
598:(AS.46 Oxford V)
581:Wasp Junior SC-G
478:helicopter, the
376:Wasp Junior SC-G
364:Wasp Junior T1B2
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2324:The following
2322:
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2319:on 2009-03-24.
2311:(in Russian).
2302:
2299:reference page
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2014:
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503:Weatherley 201
499:Grumman Ag Cat
487:bush airplanes
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368:Wasp Junior B4
360:Wasp Junior SB
356:Wasp Junior TB
303:
300:
271:
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263:Developed into
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2900:
2898:
2895:
2893:
2890:
2888:
2885:
2883:
2880:
2879:
2875:
2872:
2869:
2866:
2864:
2861:
2858:
2855:
2853:
2850:
2848:
2845:
2843:
2840:
2838:
2835:
2833:
2830:
2828:
2825:
2823:
2820:
2818:
2815:
2813:
2810:
2808:
2805:
2803:
2800:
2798:
2795:
2793:
2790:
2788:
2785:
2783:
2780:
2778:
2775:
2773:
2770:
2767:
2764:
2763:
2761:
2759:
2755:
2749:
2746:
2744:
2741:
2739:
2736:
2734:
2731:
2729:
2726:
2724:
2721:
2719:
2716:
2714:
2711:
2710:
2707:
2704:
2702:
2699:
2697:
2694:
2692:
2689:
2687:
2684:
2682:
2679:
2677:
2674:
2672:
2669:
2668:
2666:
2664:
2660:
2654:
2651:
2650:
2648:
2646:
2642:
2636:
2633:
2631:
2628:
2627:
2625:
2623:
2619:
2613:
2612:Yellow Jacket
2610:
2608:
2605:
2603:
2600:
2598:
2595:
2593:
2590:
2588:
2585:
2583:
2580:
2578:
2575:
2573:
2570:
2568:
2565:
2563:
2560:
2558:
2555:
2553:
2550:
2549:
2546:
2543:
2541:
2538:
2536:
2533:
2531:
2528:
2526:
2523:
2521:
2518:
2516:
2513:
2511:
2508:
2506:
2503:
2501:
2498:
2496:
2493:
2491:
2488:
2486:
2483:
2482:
2480:
2478:
2474:
2470:
2467:
2460:
2455:
2453:
2448:
2446:
2441:
2440:
2437:
2421:
2417:
2416:
2412:
2399:
2398:
2392:
2381:
2380:
2375:Wasp Jr. TB:
2374:
2363:
2362:
2356:
2345:
2344:
2338:
2337:
2336:
2334:
2330:
2327:
2318:
2314:
2310:
2309:
2303:
2300:
2284:
2277:
2276:
2271:
2267:
2265:
2264:1-56091-655-9
2261:
2257:
2253:
2251:
2250:0-7509-4479-X
2247:
2243:
2239:
2238:
2234:
2218:
2214:
2213:
2205:
2202:
2198:
2194:
2191:
2178:
2174:
2173:
2165:
2162:
2149:
2145:
2144:
2139:
2133:
2130:
2118:
2117:
2112:
2106:
2103:
2099:
2095:
2092:
2089:
2085:
2082:
2070:
2066:
2065:
2057:
2054:
2042:
2041:
2036:
2030:
2027:
2023:
2018:
2015:
2011:
2007:
2004:
1991:
1987:
1986:
1978:
1975:
1962:
1958:
1957:
1952:
1946:
1943:
1939:
1935:
1932:
1919:
1915:
1914:
1906:
1903:
1890:
1886:
1885:
1877:
1875:
1873:
1869:
1865:
1861:
1858:
1845:
1841:
1840:
1832:
1829:
1816:
1812:
1811:
1806:
1800:
1797:
1793:
1789:
1786:
1783:
1779:
1776:
1773:
1769:
1766:
1763:
1759:
1756:
1743:
1739:
1738:
1730:
1727:
1715:
1714:
1709:
1703:
1700:
1694:
1691:
1685:
1683:
1681:
1677:
1671:
1669:
1667:
1665:
1663:
1659:
1653:
1651:
1649:
1647:
1645:
1641:
1635:
1632:
1626:
1624:
1622:
1620:
1618:
1616:
1614:
1612:
1610:
1608:
1604:
1598:
1596:
1594:
1590:
1584:
1582:
1580:
1576:
1570:
1568:
1566:
1564:
1562:
1560:
1558:
1554:
1542:
1538:
1537:
1532:
1526:
1524:
1520:
1507:
1500:
1494:
1491:
1485:
1480:
1476:
1473:
1472:
1471:
1470:
1469:Related lists
1464:
1461:
1459:
1456:
1454:
1451:
1450:
1449:
1448:
1442:
1439:
1437:
1434:
1433:
1432:
1431:
1425:
1422:
1421:
1417:
1409:
1405:
1399:
1396:
1387:
1384:
1381:
1378:
1375:
1372:
1369:
1366:
1365:
1361:
1358:
1355:
1352:
1349:
1346:
1343:
1340:
1339:
1335:
1332:
1329:
1326:
1323:
1320:
1317:
1314:
1313:
1309:
1306:
1303:
1300:
1297:
1294:
1291:
1288:
1287:
1283:
1280:
1277:
1274:
1271:
1268:
1265:
1262:
1261:
1257:
1254:
1251:
1248:
1245:
1242:
1239:
1236:
1235:
1231:
1229:Octane rating
1228:
1225:
1222:
1219:
1216:
1213:
1210:
1209:
1200:
1198:
1194:
1191:
1189:
1185:
1182:
1180:
1176:
1173:
1172:Power output:
1170:
1169:
1165:
1160:
1158:
1154:
1152:
1148:
1145:
1142:
1138:
1135:
1131:
1129:
1125:
1122:
1118:
1116:
1112:
1111:
1107:
1102:
1100:
1096:
1093:
1090:
1087:
1084:
1081:
1079:
1075:
1059:
1057:
1053:
1037:
1035:
1031:
1028:
1025:
1024:
1020:
1018:
1016:
1013:
1010:
1003:
999:, Queensland.
998:
994:
991:
988:
987:Wolverhampton
984:
981:
979:
975:
972:
970:
966:
963:
960:
956:
953:
951:
947:
944:
942:
938:
935:
933:
929:
926:
924:
920:
917:
915:
911:
908:
905:
901:
898:
896:
892:
889:
886:
882:
878:
874:
870:
869:
868:
863:
859:
854:
848:
843:
836:
831:
828:
826:
825:Weatherly 620
823:
821:
818:
816:
813:
811:
808:
806:
803:
801:
798:
795:
792:
790:
787:
785:
782:
780:
777:
774:
773:Sikorsky S-39
771:
768:
765:
763:
762:Seversky BT-8
760:
758:
755:
753:
750:
747:
744:
742:
739:
737:
734:
732:
729:
727:
724:
721:
718:
716:(some models)
715:
712:
709:
706:
704:
701:
699:
698:Howard DGA-11
696:
694:
691:
689:(some models)
688:
685:
683:
680:
678:
675:
673:
670:
668:
665:
662:
659:
657:
654:
652:
651:Bratukhin G-3
649:
646:
643:
641:
638:
636:
633:
631:
628:
625:
622:
619:
616:
614:
611:
608:
605:
603:
600:
597:
594:
593:
588:
583:
580:
577:
574:
571:
568:
565:
562:
559:
556:
553:
550:
547:
544:
541:
538:
535:
533:Wasp Junior A
532:
531:
527:
523:
518:
514:
512:
506:
504:
500:
496:
492:
488:
485:
481:
477:
472:
470:
466:
461:
459:
455:
451:
447:
443:
440:
436:
431:
429:
425:
424:Howard DGA-15
421:
417:
414:
413:Grumman Goose
410:
406:
402:
393:
391:
389:
385:
381:
377:
371:
369:
365:
361:
357:
353:
348:
346:
341:
339:
338:Wasp Junior A
321:
317:
313:
309:
301:
299:
295:
293:
289:
286:built by the
285:
282:
278:
269:
266:
261:
260:
257:
254:
249:
248:
244:
239:
238:
234:
231:
230:
227:
223:
219:
215:
211:
207:
203:
200:
195:
194:
190:
187:
186:
183:
180:
178:Manufacturer
177:
176:
172:
167:
166:
163:
159:
156:
155:
152:
147:
143:
138:
133:
124:
121:
113:
102:
99:
95:
92:
88:
85:
81:
78:
74:
71: –
70:
66:
65:Find sources:
59:
55:
49:
48:
43:This article
41:
37:
32:
31:
19:
3918:
3651:
3169:
3096:Subsidiaries
2601:
2484:
2424:. Retrieved
2401:, retrieved
2396:
2383:, retrieved
2378:
2367:December 21,
2365:, retrieved
2360:
2349:December 21,
2347:, retrieved
2342:
2339:Wasp Jr. A:
2323:
2317:the original
2307:
2292:December 21,
2290:, retrieved
2283:the original
2274:
2255:
2241:
2235:Bibliography
2223:December 25,
2221:, retrieved
2217:the original
2211:
2204:
2183:December 25,
2181:, retrieved
2177:the original
2171:
2164:
2154:December 25,
2152:, retrieved
2148:the original
2142:
2132:
2122:December 25,
2120:, retrieved
2115:
2105:
2075:December 25,
2073:, retrieved
2069:the original
2063:
2056:
2046:December 25,
2044:, retrieved
2039:
2029:
2017:
1996:December 25,
1994:, retrieved
1990:the original
1984:
1977:
1967:December 25,
1965:, retrieved
1961:the original
1955:
1945:
1924:December 25,
1922:, retrieved
1918:the original
1912:
1905:
1895:December 25,
1893:, retrieved
1889:the original
1883:
1850:December 25,
1848:, retrieved
1844:the original
1838:
1831:
1821:December 25,
1819:, retrieved
1815:the original
1809:
1799:
1748:December 25,
1746:, retrieved
1742:the original
1736:
1729:
1719:December 25,
1717:, retrieved
1712:
1702:
1693:
1634:
1547:December 20,
1545:, retrieved
1541:the original
1535:
1512:December 23,
1510:. Retrieved
1505:
1493:
1468:
1467:
1446:
1445:
1429:
1428:
1410:for details.
1398:
1341:Wasp Jr. B4
1289:Wasp Jr. SB
1263:Wasp Jr. TB
1195:
1186:
1177:
1171:
1161:Direct drive
1155:
1149:80/87 grade
1146:
1128:Supercharger
1126:
1113:
1097:
1091:
1085:
1078:Displacement
1076:
1054:
1032:
1026:
1008:
1007:
932:Dayton, Ohio
866:
767:Sikorsky H-5
589:Applications
522:DHC-2 Beaver
507:
493:such as the
476:Sikorsky H-5
473:
462:
448:observation
444:and for the
432:
397:
375:
372:
367:
363:
359:
355:
349:
344:
342:
337:
305:
296:
292:displacement
276:
274:
241:Number built
218:Sikorsky H-5
116:
107:
97:
90:
83:
76:
64:
52:Please help
47:verification
44:
3356:O (opposed)
3139:Perry Pratt
2947:Turboshafts
2602:Wasp Junior
2592:Wasp series
2582:Twin Wasp E
2567:Twin Hornet
2552:Double Wasp
2426:October 26,
1237:Wasp Jr. A
1232:Dry weight
1166:Performance
1137:centrifugal
904:Ogden, Utah
708:Junkers F13
656:CAC Winjeel
308:R-1340 Wasp
3947:Categories
3868:V-1650 (L)
3830:V-1650 (P)
3552:R-370 (LB)
3529:R (radial)
3117:Key people
2943:Turboprops
2607:Wasp Major
2557:Hornet (A)
2403:January 7,
2385:January 7,
1481:References
1147:Fuel type:
1115:Valvetrain
1108:Components
1099:Dry weight
862:Robins AFB
607:Avro Anson
454:Avro Anson
450:floatplane
426:, and the
411:, and the
235:1929-1953
188:First run
110:April 2018
80:newspapers
3919:See also:
3582:R-540 (K)
3577:R-540 (W)
3557:R-370 (K)
3499:O-540 (L)
3494:O-540 (F)
3459:O-360 (L)
3454:O-360 (C)
3424:O-200 (F)
3419:O-200 (C)
3170:See also:
2758:Turbofans
2663:Turbojets
1269:sea level
1243:sea level
1092:Diameter:
1009:Data from
997:Caloundra
810:Waco S3HD
775:amphibian
757:PWS-24bis
630:Bell XV-3
232:Produced
3030:Propfans
3013:T800-APW
2868:SuperFan
2562:Hornet B
2530:R-2180-E
2525:R-2180-A
2272:(1956),
2193:Archived
2094:Archived
2084:Archived
2006:Archived
1934:Archived
1860:Archived
1788:Archived
1778:Archived
1768:Archived
1758:Archived
1418:See also
1141:impeller
885:Virginia
528:Variants
3886:VG-1410
3767:XR-7755
3293:IV-2220
3288:IV-2040
3283:IV-1430
3260:XH-3730
3255:XH-3130
3250:XH-2600
3245:XH-2470
3240:XH-2240
3082:GG4/FT4
3077:GG3/FT3
2857:RTF-180
2827:PW1000G
1086:Length:
1068:⁄
1046:⁄
985:, near
331:⁄
245:39,037
94:scholar
3922:X-1800
3906:W-2779
3845:V-3420
3840:V-1950
3835:V-1710
3825:V-1570
3820:V-1560
3815:V-1510
3810:V-1460
3805:V-1440
3800:V-1400
3795:V-1237
3790:V-1150
3762:R-4360
3757:R-4090
3752:R-3350
3747:R-2800
3742:R-2600
3737:R-2180
3732:R-2160
3727:R-2060
3722:R-2000
3717:R-1860
3712:R-1830
3707:R-1820
3702:R-1750
3697:R-1690
3692:R-1670
3687:R-1640
3682:R-1535
3677:R-1510
3672:R-1454
3667:R-1340
3662:R-1300
3657:R-1044
3647:DR-980
3519:O-1230
3265:H-4070
3235:H-1640
3038:578-DX
2961:JFTD12
2863:STF200
2852:PW6000
2847:PW5000
2842:PW4000
2837:PW2000
2832:PW1120
2797:JTF10A
2766:GP7000
2545:R-4360
2540:R-2800
2535:R-2270
2520:R-2060
2515:R-2000
2510:R-1860
2505:R-1830
2500:R-1690
2495:R-1535
2490:R-1340
2313:Moscow
2262:
2248:
1506:Flight
1406:. See
1211:Engine
1056:Stroke
609:(Mk V)
501:, and
489:, and
482:, and
422:, the
407:, the
320:stroke
281:radial
96:
89:
82:
75:
67:
3863:V-770
3785:V-720
3652:R-985
3642:R-975
3637:R-915
3632:R-830
3627:R-790
3622:R-760
3617:R-755
3612:R-720
3607:R-680
3602:R-670
3597:R-600
3592:R-550
3587:R-545
3572:R-500
3567:R-440
3562:R-420
3547:R-270
3542:R-265
3537:R-250
3514:O-805
3509:O-580
3504:O-550
3489:O-520
3484:O-480
3479:O-470
3474:O-435
3469:O-425
3464:O-405
3449:O-335
3444:O-300
3439:O-290
3434:O-235
3429:O-205
3414:O-190
3409:O-180
3404:O-175
3399:O-170
3394:O-150
3389:O-145
3384:O-100
3346:L-825
3341:L-510
3336:L-440
3331:L-410
3326:L-390
3321:L-375
3316:L-365
3311:L-330
2955:APW34
2933:XA103
2928:XA101
2874:V2500
2822:JTF22
2817:JTF17
2812:JTF16
2807:JTF14
2802:JT10D
2792:JTF10
2485:R-985
2286:(PDF)
2279:(PDF)
1502:(PDF)
1486:Notes
1379:6.7:1
1359:80/87
1353:6.0:1
1333:80/87
1327:6.0:1
1307:80/87
1301:6.0:1
1275:6.0:1
1249:5.0:1
1192:6.0:1
1027:Type:
930:near
921:near
902:near
879:near
345:R-985
191:1929
157:Type
101:JSTOR
87:books
3379:O-90
3374:O-45
3369:O-40
3364:O-15
3057:RL10
3019:T900
3003:XT57
2993:XT45
2923:TF33
2918:TF30
2907:F401
2902:F135
2897:F119
2892:F117
2887:F105
2882:F100
2787:JT9D
2782:JT8D
2777:JT4D
2772:JT3D
2706:JT12
2701:JT11
2691:JT8A
2676:JT4A
2671:JT3C
2597:Wasp
2428:2019
2405:2010
2387:2010
2369:2009
2351:2009
2294:2009
2260:ISBN
2246:ISBN
2225:2009
2185:2009
2156:2009
2124:2009
2077:2009
2048:2009
1998:2009
1969:2009
1926:2009
1897:2009
1852:2009
1823:2009
1750:2009
1721:2009
1549:2009
1514:2009
1382:10:1
1356:10:1
1350:same
1330:10:1
1324:same
1304:10:1
1246:same
1119:Two
1034:Bore
871:The
456:and
437:and
318:and
316:bore
275:The
73:news
3087:FT8
3008:T73
2998:T52
2988:T34
2981:PT5
2976:PT4
2971:PT3
2966:PT2
2912:RM8
2748:J91
2743:J75
2738:J60
2733:J58
2728:J57
2723:J52
2718:J48
2713:J42
2696:JT9
2686:JT7
2681:JT6
2653:PT1
1385:100
1278:8:1
1252:7:1
1012:FAA
995:in
976:in
957:in
948:in
939:in
912:in
893:in
883:in
875:'s
467:'s
322:of
56:by
3949::
3164:†
2335::
2140:,
2113:,
2090:,
2037:,
1953:,
1871:^
1807:,
1784:,
1774:,
1710:,
1679:^
1661:^
1643:^
1606:^
1592:^
1578:^
1556:^
1533:,
1522:^
1504:.
1281:80
1255:68
1070:16
1048:16
860:,
505:.
497:,
430:.
333:16
3205:e
3198:t
3191:v
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