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プラット・アンド・ホイットニー R-2800

R-2800-21

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・製造された空冷星型複列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。

特筆すべき事項として、大出力発揮に比例して生じるクランク・シャフトの二次元的振動を、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)を取り付けて解決させたことが挙げられる。

目次

主要諸元編集

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

派生型編集

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

採用機編集

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]

ワスプシリーズ編集

  • 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

脚注編集

  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

関連項目編集