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were made and performance tests were done, but this engine was not adopted due to its very complex engineering. Nakajima continued testing different cylinder designs. In 1929, the "AH" design, with bore and stroke of 146 × 160 mm and a total displacement of 24.1 L, was completed. This was
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clearance, spiral piping for even intake distribution, and a four-valve intake and exhaust system. He acquired a manufacturing license for the
Jupiter in 1925. In 1927, after inviting two production engineer instructors from the Bristol company, the Jupiter Type 6 of 420 PS and Type 7 of
91:. In 1918 they built their first airplane; the "Nakajima Type 1" with a U.S.A. made engine. In 1920 the company sent Kimihei Nakajima to France to study European advances, and in 1922 started their own engine factory in Tokyo. This led to production of engines based on the
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design of the Wasp. Nakajima then produced a series of engine types, named "AA", "AB", "AC", and "AD", as engineering exercises. The next engine design, the "AE", was innovative, with a bore of 160 mm and a stroke of 170 mm.
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carrier plane. Nakajima had designed the first
Japanese originally designed air-cooled 9-cylinder engine, the 450 PS "Kotobuki". In December 1931, this engine was approved and adopted by the Navy as the Ha-1 Ko for the
180:(light)" engine with the bore and stroke expanded to the limit of the cylinder (160 × 180 mm for a displacement of 32.6 L), with the power was increased to 720 PS. The "Hikari" was used in
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In June 1930 the first prototype of was completed and it passed the durability test for the type approval in the summer. Then flight tests were started using a
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9-cylinder radial, Nakajima tried to combine the good points found in
Jupiter design with the
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In search of more power the basic design was extended into a 14-cylinder 2-row engine, the "
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engine, which was an advanced design for the era with an automatic adjustment device for
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450 PS with a supercharger were put into production at the
Nakajima factory.
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At the time the
Lawrence was an oddity. Most air-cooled engines at that time were
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In 1917, Chikuhei
Nakajima set up the "Airplane Institute" at
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The "Kotobuki" engine was improved and developed into the "
71:. It was a radial piston developed under licence from the
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The first radial engine Pratt & Whitney R-1340 Wasp
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to be the final version of this basic engine design.
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two-cylinder air-cooled horizontally opposed engine.
983:. If you have a source, you can help Knowledge by
67:(寿, "Longevity") was an aero-engine developed by
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102:Bristol Jupiter VII on display at the
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16:1930s Japanese piston aircraft engine
454:World Encyclopaedia of Aero Engines
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612:Imperial Japanese Army Air Service
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390:550–780 hp (410–580 kW)
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475:. Sandomierz, Poland: MMPBooks.
473:Japanese Aero-Engines 1910-1945
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316:9-cylinder radial piston engine
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117:that rotated together with the
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186:Type 96 Carrier Attack Plane
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219:710 hp (529 kW)
213:610 hp (455 kW)
207:585 hp (436 kW)
44:Nakajima Aircraft Company
21:
614:aero engine designations
406:List of aircraft engines
182:Type 95 carrier fighters
147:Pratt & Whitney Wasp
308:General characteristics
171:Type 97 carrier fighter
104:Shuttleworth Collection
822:Imperial Japanese Navy
343:24.1 L (1,471.1 cu in)
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79:Design and development
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65:Nakajima Ha1 Kotobuki
442:Gunston 1989, p.104.
145:After studying the
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51:Major applications
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248:Mitsubishi Ki-18
123:Gloster Gamecock
89:Gunma Prefecture
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375:Cooling system:
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364:350 kg (772 lb)
334:160 mm (6.3 in)
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388:Power output:
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339:Displacement
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278:Nakajima E8N
273:Nakajima E4N
258:Nakajima A2N
237:Applications
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166:Nakajima A2N
163:
156:
144:
108:
93:Lawrance A-3
82:
64:
62:
985:adding them
550:Ha-8 Hikari
382:Performance
998:Categories
869:Mitsubishi
412:References
377:Air-cooled
369:Components
360:Dry weight
195:" series.
158:Prototypes
85:Ojima Town
353:Diameter:
299:Data from
119:propeller
115:cylinders
22:Kotobuki
953:Kamikaze
922:Kotobuki
905:Nakajima
521:Nakajima
395:See also
355:1,280 mm
349:1.021 mm
199:Variants
151:rational
69:Nakajima
948:Amakaze
891:Shinten
860:Type 94
855:Type 91
702:101-200
347:Length:
302:Gunston
210:2-Kai-3
204:2-Kai-1
927:Mamoru
917:Homare
912:Hikari
896:Zuisei
881:Kinsei
839:Atsuta
780:Ha-505
775:Ha-217
770:Ha-214
765:Ha-211
760:Ha-201
744:Ha-140
739:Ha-115
734:Ha-112
729:Ha-105
724:Ha-104
719:Ha-103
714:Ha-102
709:Ha-101
681:51-100
570:Ha-219
479:
330:Stroke
178:Hikari
131:tappet
113:using
31:Piston
975:This
932:Sakae
876:Kasei
832:Aichi
693:Ha-70
688:Ha-60
672:Ha-45
667:Ha-44
662:Ha-40
657:Ha-35
652:Ha-26
647:Ha-25
560:Sakae
314:Type:
216:3-Kai
27:Type
753:200-
642:Ha-9
637:Ha-6
632:Ha-5
627:Ha-1
620:1-50
545:Ha-5
477:ISBN
321:Bore
230:Ha1b
227:Ha1a
184:and
63:The
886:MK9
222:Ha1
87:in
1000::
420:^
188:.
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
