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    • Year
      1906
      2018
    • Length
      20 m
      32 m
    • Height
      6 m
      10 m
    • Width
      1 m
      8 m
    • Diameter
      3 m
      9 m
    • Wing area
      114 m2
      172 m2
    • Wingspan (Beam)
      26 m
      40 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
      21228 kg
      31843 kg
    • Max. takeoff weight (Gross weight)
      37230 kg
      55847 kg
    • Loaded weight
      5 kg
      242500 kg
    • Crew
      2 per.
      4 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
      614 km/h
      922 km/h
    • Max. Speed
      672 km/h
      1010 km/h
    • Сruise Speed
      569 km/h
      855 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
      0 hp
      60000 hp
    • Thrust
      81 kN
      123 kN
    • Service ceiling
      9607 m
      14411 m
    • Static ceiling
      3 m
      5485 m
    • Range (Ferry range)
      2320 km
      3481 km
    • Range PTB (Ferry range)
      720 km
      10000 km
    • Сombat radius
      1024 km
      1536 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
      1024 m/min
      1537 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
      1 qt
      3 qt
    • Bombs
      1 qt
      2 qt
    • Missiles
      1 qt
      24 qt
    • Rockets
      1 qt
      76 qt
    • Torpedoes
      1 qt
      4 qt
    • Bombs weight
      2 kg
      39000 kg
    • Rockets weight
      1 kg
      48 kg
    • Number built
      1 qt
      3 qt
    • Price
      9200000 USD
      13800000 USD

Martin XB-48

TypeAircraft
Company

Glenn L. Martin Company

Scheme

High wing

Monoplane

Geometry
Length (m)
1.9
 
26.1
88.7
Height (m)
0.6
 
8.1
50.1
Wings
Wing area (m2)
1.1
 
142.7
925
Wingspan (Beam) (m)
0.1
 
33.0
95
Weights
Empty weight (kg)
8
 
26,535.2
276,800
Max. takeoff weight (Gross weight) (kg)
154
 
46,538.6
575,000
Capacity
Crew (per.)
1
 
3
112
pilot, co-pilot, and bomber-navigator
Speeds
Ground Speed (km/h)
96.6
 
768
1,500
Max. Speed (km/h)
25
 
841
28,165
Сruise Speed (km/h)
52
 
712
3,087
Power
Thrust (kN)
1.5
 
102
1,914
6 powerplants 17 kN each
Performance
Service ceiling (m)
0.6
 
12,009.1
161,544
Range (Ferry range) (km)
4
 
2,900.2
40,700
Сombat radius (km)
277
 
1,280
7,210
Dynamic Performance
Rate of climb (m/min)
1.9
 
1,280.2
36,000
Combat
Guns (qt)
1
 
2
18
.50 in (12.7 mm) M7 machine guns in tail turret (proposed)
Bombs (qt)
1
 
1
250
9,980 kg of bombs
Stat
Number built (qt)
0
 
2
43,000
Price (USD)
41.5
 
11.5 million
750.0 million
Introduction 1947
First flight 22.06.1947

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