プラット・アンド・ホイットニー R-2800

R-2800(通称:ダブルワスプエンジン)は、アメリカプラット・アンド・ホイットニーによって開発・製造された空冷二重(複列)星型18気筒の航空用エンジン第二次世界大戦期において、F4UコルセアP-47サンダーボルトF6Fヘルキャットなどのアメリカの主力戦闘機やA-26インベーダーなどの爆撃機に採用され大いに活躍した。

R-2800-21

特筆すべき事項として、大出力発揮に比例して生じる往復運動質量起因の二次振動を打ち消すために、クランク軸の前後両端に2倍の速さで逆回転するダイナミックバランサー(慣性平衡装置)を取り付けることでその問題を解決したことが挙げられる。

主要諸元

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R-2800-CB[1][2]

  • タイプ:空冷星型18気筒
  • ボア:5.75in (146mm)
  • ストローク:6in (152mm)
  • 全長:81.4in (2,068mm)
  • 直径:52.8in (1,341mm)
  • 排気量:45.9ℓ (2,800in³)
  • 乾燥重量:2,350lbs (1,066kg)
  • 過給機:遠心式スーパーチャージャー1段2速
  • 燃料供給方式:キャブレター
  • 離昇馬力:2,400Bhp/1,790kW/2,800rpm

派生型

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Pratt & Whitney R-2800 Double Wasp[3]
型式 乾燥重量 離昇出力 最大出力/高度 搭載機
R-2800-8[4] 2,300lbs (1,043kg) 2,000Bhp/S.L. 2,000Bhp/S.L.-1,000ft 1,650Bhp/15,600-22,500ft F4U-1、FG-1、F4U-2
R-2800-8W[5] 2,480lbs (1,125kg) 2,000Bhp/S.L. 2,250Bhp/S.L. 1,975Bhp/16,900ft F4U-1A/1D、FG-1A/1D
R-2800-10W[6] 2,480lbs (1,125kg) 2,000Bhp/S.L. 2,135Bhp/S.L.-12,400ft 1,940Bhp/18,000ft F6F-3/5
R-2800-14W[7] 2,315lbs (1,050kg) 2,100Bhp/S.L. 2,600Bhp/S.L.-28,200ft FG-3
R-2800-16[8] 2,265lbs (1,027kg) 2,000Bhp/S.L. 2,000Bhp/S.L.-30,000ft XF4U-3
R-2800-18W[9] 2,560lbs (1,161kg) 2,100Bhp/S.L. 2,800Bhp/S.L. 2,050Bhp/23,300ft[10] F4U-4XF6F-6
R-2800-20[11] 2,300lbs (1,043kg) 2,000Bhp/S.L. 2,000Bhp/S.L.-1,600ft 1,600Bhp/8,000-11,800ft TBY-1
R-2800-21[12] 2,265lbs (1,027kg) 2,000Bhp/S.L. 2,000Bhp/S.L.-30,000ft XF6F-2
R-2800-22[13] 2,359lbs (1,070kg) 2,100Bhp/S.L. 2,100Bhp/S.L.-4,000ft 1,600Bhp/12,000-16,400ft TBY-2
R-2800-22W[14] 2,359lbs (1,070kg) 2,100Bhp/S.L. 2,380Bhp/1,000ft 1,850Bhp/14,000ft F7F-1/2
R-2800-23 2,377lbs (1,078kg) 2,200Bhp/S.L. XC-123
R-2800-27[15] 2,300lbs (1,043kg) 2,000Bhp/S.L. 2,000Bhp/S.L.-1,500ft 1,600Bhp/7,800-13,500ft A-26BXF6F-4XB-28A
R-2800-29 2,377lbs (1,078kg) 2,000Bhp/S.L. XP-56
R-2800-30W[16] 2,560lbs (1,161kg) 2,250Bhp/S.L. 2,500Bhp/S.L. 1,800Bhp/23,250ft F8F-2XF15C
R-2800-31[17] 2,280lbs (1,034kg) 2,000Bhp/S.L. 2,000Bhp/S.L.-1,500ft 1,600Bhp/7,400-13,500ft PV-1
R-2800-32W[18] 2,690lbs (1,220kg) 2,300Bhp/S.L. 2,760Bhp/S.L. 2,440Bhp/23,000ft F4U-5/5N
R-2800-34[19] 2,359lbs (1,070kg) 2,100Bhp/S.L. 2,100Bhp/S.L.-3,000ft 1,700Bhp/1,6000ft PBM-5
R-2800-34W[20] 2,359lbs (1,070kg) 2,100Bhp/S.L. 2,750Bhp/S.L. 2,450Bhp/9,600ft F7F-3/4F8F-1
R-2800-39 2,300lbs (1,043kg) 2,000Bhp/S.L. 2-0-2
R-2800-41 2,300lbs (1,043kg) 2,000Bhp/S.L. B-26B-2
R-2800-43[21] 2,300lbs (1,043kg) 2,000Bhp/S.L. 2,000Bhp/S.L.-1,800ft 1,600Bhp/7,800-11,900ft B-26B/C/E/F/GC-46
R-2800-44W[22] 2,344lbs (1,063kg) 2,300Bhp/S.L. 2,300Bhp/S.L.-30,000ft AJ-1/2
R-2800-46(W)[23] 2,327lbs (1,056kg) 2,300Bhp/S.L. 2,300Bhp/S.L.-600ft XTB3F-1S
R-2800-48[24] 2,367lbs (1,074kg) 2,300Bhp/S.L. 2,300Bhp/3,500ft AF-2
R-2800-51[25] 2,300lbs (1,043kg) 2,000Bhp/S.L. 2,000Bhp/S.L.-1,500ft 1,600Bhp/13,500ft R5C-1
R-2800-52W[26] 2,390lbs (1,084kg) 2,500Bhp/S.L. 2,500Bhp/S.L.-2,500ft C-118AR4Y-1/2
R-2800-53 2,580lbs (1,170kg) 2,000Bhp/S.L. XP-60C
R-2800-54[27] 2,300lbs (1,043kg) 2,100Bhp/S.L. CH-37A/B、HR2S-1/1W
R-2800-57[28] 2,315lbs (1,050kg) 2,060Bhp/S.L. 2,660Bhp/S.L. 2,800Bhp/25,000ft[29] P-47N
R-2800-59(W) 2,290lbs (1,039kg) 2,300Bhp/S.L. P-47B/C/D
R-2800-65 2,508lbs (1,138kg) 2,000Bhp/S.L. P-61A-5
R-2800-65W 2,508lbs (1,138kg) 2,250Bhp/S.L. P-61B
R-2800-73 2,351lbs (1,066kg) 2,800Bhp/S.L. P-61CF-15A
R-2800-75[30] 2,325lbs (1,055kg) 2,000Bhp/S.L. 2,000Bhp/S.L.-1,500ft 1,600Bhp/13,500ft C-46
R-2800-79[31] 2,325lbs (1,055kg) 2,000Bhp/S.L. 2,350Bhp/S.L. 1,600Bhp/13,500ft B-26
R-2800-83 2,384lbs (1,081kg) 2,100Bhp/S.L. CL-215
R-2800-83WA[32] 2,384lbs (1,081kg) 2,300Bhp/S.L. 2,800Bhp/S.L. 2,270Bhp/11,000ft AU-1
R-2800-85[33] 2,376lbs (1,078kg) 2,100Bhp/S.L. 2,100Bhp/3,000ft 1,700Bhp/16,000ft C-82A
R-2800-99W[34] 2,390lbs (1,084kg) 2,500Bhp/S.L. C-131A
R-2800-103W[35] 2,390lbs (1,084kg) 2,500Bhp/S.L. C-131B
R-2800-CB15 2,390lbs (1,084kg) 2,500Bhp/S.L. 2,500Bhp/S.L.-2,500ft 1,700Bhp/14,500ft XC-123
R-2800-CB16 2,390lbs (1,084kg) 2,400Bhp/S.L. 2,400Bhp/S.L.-4,000ft 1,950Bhp/8,000ft DC-6、C-1184-0-4
R-2800-CB17 2,390lbs (1,084kg) 2,500Bhp/S.L. 2,500Bhp/S.L.-2,500ft 1,900Bhp/13,000ft R6DHoward 500

採用機

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製造元 機体名
Curtiss Wright C-46 (R5C)、P-60A/E、XC-113、XF15C、SB2C-6
Douglas A-26、JD-1、XC-112A、DC-6 (C-118, R6D)
Fairchild C-82、C-123B
Goodyear FG-1/3/4
Grumman F6F、F7F、F8F、AF-2W/S
Lockheed RB-24 (PV-1)、PV-2、C-69E
Martin B-26 (JM-1/2)、AT-23、PBM-5、Model 202,A、4-0-4 (RM-1)
North American XB-28、AJ-1/2
Northrop XP-56、P-61 (F2T)、F-15F (RF-61)
Republic P-47
Vought AU-1、F4U、XTBU-1

その他Aero Nord、Aero Sud-Ouest、Bell、Breguet、Brewster、Chase、Consolidated Vultee、Eastern、Fairchild、Hughes、Sikorsky、Stroukoff、Warwick、Vulteeなどに提供され、1939年から1960年の間に125,334機の生産が行われた。[36]

ワスプシリーズ

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  • R-1340 ワスプ
  • R-985 ワスプ・ジュニア
  • R-1535 ツインワスプ・ジュニア
  • R-1830 ツインワスプ
  • R-4360 ワスプ・メジャー

脚注

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  1. ^ Pratt & Whitney Double Wasp R-2800 CB16, 2-Row, Radial 18 Engine National Air and Space Museum
  2. ^ MAINTENANCE MANUAL
    DOUBLE WASP (R-2800) CA ENGINES
    DOUBLE WASP (R-2800) CB ENGINES
  3. ^ R-2800-65W AIR VICTORY MUSEUM
    INDEX OF DOUBLE WASP & R-2800 DESIGNATED ENGINES
  4. ^ XF4U-2 Corsair Specifications BU. OF AERO., NAVY DEPT. PERFORMANCE DATA
  5. ^ F4U-1D Corsair Specifications AIRPLANE CHARACTERISTICS & PERFORMANCE
  6. ^ F6F-5 Hellcat Specifications STANDARD AIRCRAFT CHARACTERISTICS
    F6F-5N Hellcat Specifications AIRPLANE CHARACTERISTICS & PERFORMANCE
  7. ^ FG-3 Corsair Specifications AIRPLANE CHARACTERISTICS & PERFORMANCE
  8. ^ XF4U-3 Corsair Specifications BU. OF AERO., NAVY DEPT. PERFORMANCE DATA
  9. ^ F4U-4 Corsair Specifications(1) STANDARD AIRCRAFT CHARACTERISTICS
    F4U-4 Corsair Specifications(2) AIRPLANE CHARACTERISTICS & PERFORMANCE
    Measurements in Flight of the Flying Qualities of a Chance Vought F4U-4 Airplane: TED No. NACA 2388
  10. ^ 2,050-2,080Bhp/19,500-23,300ft
  11. ^ TBY-1 Sea Wolf Specifications BU. OF AERO., NAVY DEPT. PERFORMANCE DATA
  12. ^ XF6F-2 Hellcat Specifications BU. OF AERO., NAVY DEPT. PERFORMANCE DATA
  13. ^ TBY-2 Sea Wolf Specifications AIRPLANE CHARACTERISTICS & PERFORMANCE
  14. ^ F7F-1 Tigercat Specifications AIRPLANE CHARACTERISTICS & PERFORMANCE
    F7F-2N Tigercat Specifications AIRPLANE CHARACTERISTICS & PERFORMANCE
  15. ^ XF6F-4 Hellcat Specifications BU. OF AERO., NAVY DEPT. PERFORMANCE DATA
  16. ^ F8F-2 Bearcat Specifications STANDARD AIRCRAFT CHARACTERISTICS
  17. ^ PV-1 Ventura Specifications AIRPLANE CHARACTERISTICS & PERFORMANCE
  18. ^ Corsair 5 - F4U-5 Information manual
    CALIBRATION OF PRATT AND WHITNEY R-2800-32W ENGINE DEFENSE TECHNICAL INFORMATION CENTER
  19. ^ PBM-5 Mariner Specifications STANDARD AIRCRAFT CHARACTERISTICS
  20. ^ F8F-1 Bearcat Specifications STANDARD AIRCRAFT CHARACTERISTICS
  21. ^ Pratt & Whitney Double Wasp R-2800-43, 2-Row, Radial 18 Engine National Air and Space Museum
    JM-1 Marauder Specifications AIRPLANE CHARACTERISTICS & PERFORMANCE
  22. ^ AJ-2 Savage Specifications STANDARD AIRCRAFT CHARACTERISTICS
  23. ^ XTB3F-1S Guardian Specifications AIRPLANE CHARACTERISTICS & PERFORMANCE
    XTB3F-2S Guardian Specifications AIRPLANE CHARACTERISTICS & PERFORMANCE
  24. ^ AF-2S Guardian Specifications STANDARD AIRCRAFT CHARACTERISTICS
  25. ^ R5C-1 Commando Specifications STANDARD AIRCRAFT CHARACTERISTICS
  26. ^ C-118A Liftmaster Specifications Characteristics Summary
    R4Y-2 Samaritan Specifications STANDARD AIRCRAFT CHARACTERISTICS
    R6D-1 Specifications STANDARD AIRCRAFT CHARACTERISTICS
  27. ^ HR2S-1 Mojave Specifications STANDARD AIRCRAFT CHARACTERISTICS
  28. ^ F-47N Thunderbolt Specifications STANDARD AIRCRAFT CHARACTERISTICS
  29. ^ 2,610Bhp/36,500ft
  30. ^ C-46F Commando Specifications Characteristics Summary
  31. ^ B-26B Invader Specifications Characteristics Summary
  32. ^ AU-1 Corsair Specifications STANDARD AIRCRAFT CHARACTERISTICS
  33. ^ C-82A Packet Specifications Characteristics Summary
  34. ^ C-131A Samaritan Specifications Characteristics Summary
  35. ^ C-131B Samaritan Specifications Characteristics Summary
  36. ^ R-2800 DOUBLE WASP ENGINE Web Archive

関連項目

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