Search filter

    • Year
      1906
      2018
    • Length
      15 m
      23 m
    • Height
      3 m
      6 m
    • Width
      1 m
      8 m
    • Diameter
      3 m
      9 m
    • Wing area
      83 m2
      125 m2
    • Wingspan (Beam)
      23 m
      35 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
      2 qt
      4 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
      6924 kg
      10387 kg
    • Max. takeoff weight (Gross weight)
      14514 kg
      21773 kg
    • Loaded weight
      9889 kg
      14835 kg
    • Crew
      6 per.
      10 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
      283 km/h
      425 km/h
    • Сruise Speed
      244 km/h
      367 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
      3 kN/kg
    • Afterburning thrust
      29 kN/kg
      980 kN/kg
    • Total Power
      1920 hp
      2880 hp
    • Thrust
      1 kN
      1914 kN
    • Service ceiling
      6096 m
      9144 m
    • Static ceiling
      3 m
      5485 m
    • Range (Ferry range)
      2523 km
      3785 km
    • Range PTB (Ferry range)
      720 km
      10000 km
    • Сombat radius
      772 km
      1159 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
      1 m/min
      36000 m/min
    • Rate of sink
      36 m/min
      56 m/min
    • Time to altitude
      8 min
      12 min
    • Propellers
      1 qt
      3 qt
    • Prop diameter
      1 m
      6 m
    • Prop blade number
      1 qt
      8 qt
    • Guns
      5 qt
      9 qt
    • Bombs
      1 qt
      250 qt
    • Missiles
      1 qt
      24 qt
    • Rockets
      1 qt
      76 qt
    • Torpedoes
      1 qt
      4 qt
    • Bombs weight
      3600 kg
      5400 kg
    • Rockets weight
      1 kg
      48 kg
    • Number built
      0 qt
      2 qt
    • Price
      97600 USD
      146400 USD

North American Aviation XB-21

TypeAircraft
Company

North American Aviation

Scheme

Midwing

Monoplane

Geometry
Length (m)
1.9
 
18.8
88.7
Height (m)
0.6
 
4.5
50.1
Wings
Wing area (m2)
1.1
 
104
925
Wingspan (Beam) (m)
0.1
 
29.0
95
Rotors
Rotor number (qt)
1
 
3
8
Weights
Empty weight (kg)
8
 
8,655.5
276,800
Max. takeoff weight (Gross weight) (kg)
154
 
18,143.7
575,000
Loaded weight (kg)
5
 
12,361.8
242,500
Capacity
Crew (per.)
1
 
8
112
Six to eight
Speeds
Max. Speed (km/h)
25
 
354.1
28,165
at 3000 m
Сruise Speed (km/h)
52
 
305.8
3,087
Power
Total Power (hp)
0.4
 
2,400
60,000
2 powerplants 1200 hp each
Performance
Service ceiling (m)
0.6
 
7,620
161,544
Range (Ferry range) (km)
4
 
3,154
40,700
with 1000 kg of bombs
Сombat radius (km)
277
 
965.6
7,210
with 4500 kg of bombs
Dynamic Performance
Time to altitude (min)
0.6
 
10
105
to 3000 m
Propellers
Propellers (qt)
1
 
2
8
Combat
Guns (qt)
1
 
7
18
5 x .30-calibre machine guns, mounted in single turrets in the nose and dorsal positions, and single manually operated mounts in the waist and ventral positions
Bombs weight (kg)
2
 
4,500
39,000
in internal bay
Stat
Number built (qt)
0
 
1
43,000
Price (USD)
41.5
 
122,000
750.0 million
Introduction 1938
First flight 22.12.1936

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