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    • Year
      1906
      2018
    • Length
      20 m
      32 m
    • Height
      4 m
      7 m
    • Width
      1 m
      8 m
    • Diameter
      3 m
      9 m
    • Wing area
      40 m2
      62 m2
    • Wingspan (Beam)
      12 m
      20 m
    • Wing loading
      3 kg/m2
      829 kg/m2
    • Swept
      4 m
      10 m
    • Sweep
      25 deg
      68 deg
    • Aspect ratio
      1
      26
    • Disc area
      1 m2
      460 m2
    • Main rotor diameter
      1 m
      62 m
    • Rotor number
      1 qt
      8 qt
    • Blades per rotor
      4 qt
      5 qt
    • Disc loading
      17 kg/m2
      73 kg/m2
    • Tail rotor diameter
      0 m
      5 m
    • Empty weight
      10735 kg
      16103 kg
    • Max. takeoff weight (Gross weight)
      22664 kg
      33997 kg
    • Loaded weight
      5 kg
      242500 kg
    • Crew
      1 per.
      3 per.
    • Useful load
      26 kg
      90700 kg
    • Payload
      23 kg
      122470 kg
    • Capacity passengers
      1 per.
      400 per.
    • Hardpoints
      1 qt
      2576 qt
    • Ground Speed
      96 km/h
      1500 km/h
    • Max. Speed
      832 km/h
      1248 km/h
    • Сruise Speed
      684 km/h
      1028 km/h
    • Stall Speed
      40 km/h
      258 km/h
    • Landing Speed
      68 km/h
      270 km/h
    • Minimum control speed
      24 km/h
      113 km/h
    • Never exceed speed
      107 km/h
      1050 km/h
    • Fuel Capacity
      23 l
      320000 l
    • Fuel External
      142 l
      10025 l
    • Power/mass
      0 hp/kg
      23 hp/kg
    • Thrust/weight
      0 kN/kg
      1 kN/kg
    • Afterburning thrust
      29 kN/kg
      980 kN/kg
    • Total Power
      0 hp
      60000 hp
    • Thrust
      1 kN
      1914 kN
    • Service ceiling
      9875 m
      14814 m
    • Static ceiling
      3 m
      5485 m
    • Range (Ferry range)
      1384 km
      2076 km
    • Range PTB (Ferry range)
      720 km
      10000 km
    • Сombat radius
      277 km
      7210 km
    • Endurance
      0 h
      150 h
    • Takeoff roll
      20 m
      3200 m
    • Landing roll
      20 m
      2570 m
    • Maximum glide ratio
      7
      43
    • Load factor from
      2 G
      9 G
    • Rate of climb
      1702 m/min
      2553 m/min
    • Rate of sink
      36 m/min
      56 m/min
    • Time to altitude
      0 min
      105 min
    • Propellers
      1 qt
      8 qt
    • Prop diameter
      1 m
      6 m
    • Prop blade number
      1 qt
      8 qt
    • Guns
      6 qt
      10 qt
    • Bombs
      1 qt
      250 qt
    • Missiles
      1 qt
      24 qt
    • Rockets
      6 qt
      10 qt
    • Torpedoes
      1 qt
      4 qt
    • Bombs weight
      8320 kg
      12480 kg
    • Rockets weight
      1 kg
      48 kg
    • Number built
      1 qt
      3 qt
    • Price
      10080000 USD
      15120000 USD

Martin XB-51

TypeAircraft
Company

Glenn L. Martin Company

Scheme

Midwing

Monoplane

Geometry
Length (m)
1.9
 
25.9
88.7
Height (m)
0.6
 
5.3
50.1
Wings
Wing area (m2)
1.1
 
50.9
925
Wingspan (Beam) (m)
0.1
 
16.2
95
Weights
Empty weight (kg)
8
 
13,419.1
276,800
Max. takeoff weight (Gross weight) (kg)
154
 
28,330.0
575,000
Capacity
Crew (per.)
1
 
2
112
Speeds
Max. Speed (km/h)
25
 
1,040
28,165
Сruise Speed (km/h)
52
 
856
3,087
Power
Thrust/weight (kN/kg)
0.0
 
0.3
2.1
Performance
Service ceiling (m)
0.6
 
12,344.4
161,544
Range (Ferry range) (km)
4
 
1,730
40,700
Dynamic Performance
Rate of climb (m/min)
1.9
 
2,127.5
36,000
Combat
Guns (qt)
1
 
8
18
20 mm Pontiac M39A1 (0.79 in) cannon
Rockets (qt)
1
 
8
76
High Velocity Aerial Rockets
Bombs weight (kg)
2
 
10,400
39,000
Stat
Number built (qt)
0
 
2
43,000
Price (USD)
41.5
 
12.6 million
750.0 million
Introduction 1949
First flight 28.10.1949
Stop production 25.03.1956

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