Ki-84 vs P-51

Ki-84 Hayate versus P-51 Mustang

Airplane Ki-84 Hayate P-51 Mustang
Country Japan USA
Type of aircraft Fighter Fighter-Bomber
First Flight 1943 1940
Introduction 1943 1942
Crew 1 1
Number built 3515 16000

Airplanes dogfight compare

Lethality points 77 60
Lethality level High High
Firing Time pts (main gun) 11 20
Firing Time pts (secondary guns) 26 30
Firing Time pts (total) 37 50
Main gun Rate of fire (round/min) 900 850
Main gun Effective range (yd) 2000 2000
Main gun Effective range (m) 1829 1829
Turn Radius (No flaps) 595 777
Turn Radius (Full flaps) 445 633
Speed/Accele./Agility pts 77 59
Acceleration (0-150 ft (ft/s)) 8,00 10,00
Acceleration (0-150 ft (m/s)) 2,44 3,05
Acceleration (250-300 ft (ft/s)) 21,50 22,30
Acceleration (250-300 ft (m/s)) 6,55 6,80
Wing Loading (lb/sq ft) 35 39
Wing Loading (kg/sq m) 171 190
Max Power/mass (hp/lb) 0,337 0,225
Max Power/mass (hp/kg) 0,742 0,497
Min Power/mass (hp/lb) 0,231 0,143
Min Power/mass (hp/kg) 0,509 0,316
Climb Rate (ft/min) 3815 3200
Climb Rate (m/min) 1163 975

Ki-84 vs P-51Airplanes Size/Power/Specs

Length (ft) 32,60 32,30
Length (m) 9,94 9,85
Width (ft) 36,90 37,00
Width (m) 11,25 11,28
Height (ft) 11,10 13,40
Height (m) 3,38 4,08
Wing Area (sq ft) 226 235
Wing Area (sq m) 21,0 21,8
Empty Weight (lb) 5910 7630
Empty Weight (kg) 2681 3461
Max. Take Off (lb) 8615 12000
Max. Take Off (kg) 3908 5443
Engine Power (hp) 1990 1720
Engine 1 × Nakajima Ha-45-21 Homare 1 × Packard V-1650-7
Max Speed (mph) 429 437
Max Speed (km/h) 690 703
Max Speed (Mach) 0,56 0,57
Max Range (miles) 1335 1650
Max Range (km) 2148 2655
Service Ceiling (ft) 34500 42000
Service Ceiling (m) 10516 12802

Airplanes armament and equipment

2 x 12.7mm Ho-103 machine guns in fuselage nose
2 x 20mm Ho-5 cannons in wings
2 x 551lb bombs under wings 
4 x 20mm long-barrel Hispano-Suiza cannons in wings,
2 x 12.7mm machine guns in nose
4 x 12.7mm machine guns in wings
P-51D:
6 x .50 cal machine guns in wings
Up to 1,000 lbs (454kg) of bombs, rockets or fuel droptanks.

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2 Comments
  1. dubbs says

    Wow. Its amazing that so many acft of WW2 were “superior” ( on paper) to the P-51 mustang, YET got out performed by the Mustang! Spitfire IX ? Short range slower speed. Ditto the FW 190 D. And the Ki 84 in the pacific? In the hands of a veteran against novice P-51 drivers , victory for the Ki 84.”BUT” against. Guys like Preddy or Gentile? Flaming japanese junk! No matter who’s arguing, the reality is that the P-51 is the best of WW2!

  2. Kenshui says

    In tests Ki-84 Hayate easily compared with its foes the p-47n thunderbolt,p-51d mustang,f6f5 hellcat,p-38l lightning up to 20000ft its real weakness was its high altitude performance.
    Also talking about aces like Hiroyoshi Nishizawa (80+ kills) or Tetsuzō Iwamoto (80+ kills) would also blow any of those american fatboys to blown scrap!
    P-51 was good fighter,but not exceptional poor manoeuvrability,bad low altitude performance, heavy and weak design especially its liquid cooled engine couldn’t take the beating like an air cooled radial Ki-84.

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