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141:-type carburettors, of which each fed one row of four cylinders separately. It appears that different arrangements for the two carburettors have been tried. Some of the engines had the carburettors located at the back end of the engines, while others had them located between the cylinder rows. Also preheated air could be provided to the carburettors via intake air pipes routed through the exhaust.
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The same engine design was also implemented as 60° V-12 engine. The Rapp 300 hp V-12 was said to produce around 300 hp (224 kW) at about 1,350-1,400 rpm, while weighing about 470–474 kg (1,036–1,045 lb). It appears that different variants with outward-facing and inward-facing
113:
design approximately around 1915. It had eight cylinders with the same bore and stroke of 140 mm × 160 mm (5.51 in × 6.30 in) as the Rapp 100 hp, arranged in two rows of four. The engine was said to produce about 200–205 hp (149–153 kW) at 1,350 rpm, while
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The valve seats, with the exhaust valve seats being water-cooled, were separately built parts which were screwed into the cylinder heads and could be easily removed for maintenance work. Both inlet valves of the cylinder pair, and likewise so both exhaust valves on the other side, were pressed into
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The design of the cylinders and the valvetrain also reflected the design of the Rapp 100 hp four-cylinder. The cylinders of each cylinder row were again arranged in pairs composed of two separate forged steel cylinder liners screwed into the pairwise cast cylinder heads. The cylinder heads had
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six-cylinder engines. The crankshaft was supported by the main journals in the upper part of the crankcase. Lubrication was done by a gear pump which was mounted on the lowest point of the engine. The gear pump fed the oil from two cylindrical oil reservoirs, mounted front and aft below the engine
125:
Each cylinder's exhaust and inlet valves were actuated successively from a single cam lobe on the overhead camshaft via roller tappets and rocker arms. The camshaft of each cylinder row was driven via a vertical timing shaft and bevel gears between the two cylinder pairs. Two magnetos were also
134:
crankcase, to the main journals of the crankshaft. In order to circulate the engine coolant separate geared water pumps were installed on the respective side of the crankcase for each cylinder row.
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The crankcase was cast from aluminum in two pieces, parted at the center line in an upper and a lower part. It was designed in the same manner as the Rapp 100 hp four cylinder and the 150 hp
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their seat by a single pivoted leaf spring. The intake was oriented to inner side of the Vee and the exhaust was oriented to the outer side.
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c.1915, 300 hp (224 kW), 1,350–1,400 rpm, 140 mm × 160 mm (5.5 in × 6.3 in) bore and stroke
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c.1915, 200 hp (149 kW), 1,350–1,400 rpm, 140 mm × 160 mm (5.5 in × 6.3 in) bore and stroke
791:
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505:
Airplane Engine
Encyclopedia: An Alphabetically Arranged Compilation Of All Available Data On The World's Airplane Engines
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488:. Flugmotorenprüfstände der Rapp Motoren-Werke (photo). 60° V-12 in the middle, note the outward-facing exhausts
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engines (from left to right) at the test bench, also note the different size propellers:
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Rapp 300 hp V-12 engine, version with inward-facing exhausts and Pallas carburettors:
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driven from the vertical timing shaft and were located between the two cylinder rows.
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Schiffsmaschinenkunde mit besonderer Berücksichtigung der
Dampfturbinen und Ölmotoren
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exhausts have been tried, the latter variant also depicted with Pallas carburettors.
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The Rapp 200 hp V-8 engine design was derived from the earlier four-cylinder
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integral cooling jackets and were cast from steel in pairs and then machined.
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554:(in German) (3rd ed.). Berlin: R. C. Schmidt & co.
533:(in German) (3rd ed.). Berlin: R.C. Schmidt & Co.
114:weighing about 300–315 kg (661–694 lb).
356:. Achtzylinder Rapp - Flugmotor, 200 PS (photo)
651:"Flugmotorenprüfstände der Rapp Motoren-Werke"
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194:eight-cylinder, water-cooled V-8 piston engine
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593:(2). Berlin: Krayn: 13–16. 20 January 1918.
575:(in German). Berlin: E.S. Mittler und Sohn.
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33:Rapp 200 hp V-8 aircraft engine, side view
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476:. Zwölfzylinder Rapp - Flugmotor, 300 PS.
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628:"Zwölfzylinder Rapp - Flugmotor, 300 PS"
602:"Achtzylinder Rapp - Flugmotor, 200 PS"
335:
286:200 hp (149 kW) at 1,350 rpm
15:
551:Motoren für Flugzeuge und Luftschiffe
7:
408:Huth. 1920. p. 145-147, 130-134
221:19.7 L (1,202 cu in)
14:
676:Rapp 200 hp V-8, 300 hp V-12 and
449:. 20 January 1918. pp. 14-15
583:"Zur Konstruktion der Steuerung"
461:Schwager. 1918. pp. 114–115
173:Specifications (200 hp Rapp V-8)
24:
1:
787:1910s aircraft piston engines
258:-actuated valves per cylinder
618:200 PS 8 cyl. Rappmotor 1915
508:. Otterbein Press. pp.
436:Klamroth. 1916. p. 235
93:was a water-cooled 90° V-8
808:
569:Klamroth, Gerhard (1916).
502:Angle, Glenn Dale (1921).
212:160 mm (6.30 in)
203:140 mm (5.51 in)
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230:300 kg (661 lb)
32:
23:
18:
372:Angle. 1921. p. 402
324:List of aircraft engines
256:single overhead camshaft
186:General characteristics
420:Eyb. 1918. p. 125
105:Design and development
792:Rapp aircraft engines
165:300 hp Rapp V-12
678:125/145 hp Rp II V-8
548:Huth, Fritz (1920).
527:Eyb, Robert (1918).
159:200 hp Rapp V-8
42:Inline piston engine
296:Related development
137:The engine had two
700:BMW Group archives
686:BMW Group archives
655:BMW Group archives
632:BMW Group archives
606:BMW Group archives
486:BMW Group Archives
474:BMW Group Archives
354:BMW Group Archives
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659:. Retrieved
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19:Rapp 200 hp
661:31 December
657:. BMW Group
638:31 December
634:. BMW Group
612:31 December
608:. BMW Group
312:Rapp Rp III
302:Rapp 100 hp
278:Performance
131:Rapp Rp III
111:Rapp 100 hp
91:Rapp 200 hp
82:Rapp 100 hp
781:Categories
756:125/145 hp
696:FF-3380-42
693:FF-3380-41
682:FF-3380-44
330:References
250:Valvetrain
243:Components
226:Dry weight
68:First run
518:23525261M
237:Karl Rapp
234:Designer:
178:Data from
97:built by
291:See also
154:Variants
53:Germany
560:2116726
539:9500053
510:402-404
71:c.1915
766:Rp III
761:200 hp
751:100 hp
649:Rapp.
626:Rapp.
600:Rapp.
558:
537:
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208:Stroke
139:Zenith
192:Type:
181:Angle
38:Type
737:Rapp
663:2020
640:2020
614:2020
556:OCLC
535:OCLC
445:cf.
254:two
199:Bore
89:The
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653:.
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591:21
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514:OL
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466:^
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729:e
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