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C-137 Stratoliner
Photo: Unknown author · Wikimedia Commons · Public domain
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C-137Stratoliner

Tactical Transports · United States · 1959
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C-137Stratoliner

C-137 Stratoliner
C-137 Stratoliner Photo: Unknown author · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Payload
60
Short / Rough-Field Capability
30
Range
75
Cargo Versatility
50
Reliability
85
Self-Protection
10
Low-Altitude Capability
50
Versatility
40
Technology
65
Cost-Effectiveness
70
Origin United States
CategoryTactical Transports
EraEarly Cold War
In service1959–1965
Operators4 countries
Quantity7
Data Quality87%
MASS(Military Archive Scoring System)
53
Tactical Transports MASS Rating
50/60
Early Cold War
161/215
All-Time
Tactical Transports · 10 axes scored
Payload
60
Short / Rough-Field Capability
30
Range
75
Cargo Versatility
50
Reliability
85
Self-Protection
10
Low-Altitude Capability
50
Versatility
40
Technology
65
Cost-Effectiveness
70
ⓘ Regardless of era, the same scoring system applies to all units in the tactical transports category.
01 / Overview
C-137 Stratoliner
Production
1959–1965
Quantity
7
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
TACTICAL TRANSPORTS · EARLY COLD WAR
50
PERFORMANCE/PRICE
75
UNIT COST (2025 USD)
—
53
tactical transports category
ⓘ Performance/Price and MASS score are computed across all units in the tactical transports category, regardless of era.
02 / Specs & Design
◎General5MOD.5
  • First Flight1958
  • Service Entry Year1959
  • Crew4
  • Primary RoleVIP transport
  • In ServiceNo
◈Powerplant4MOD.4
  • Engine TypePratt & Whitney TF33-PW-102 turbofan engines
  • Number of Engines4
  • Thrust (each)80
  • Power (each, turboprop)11,186 kW
▣Performance7MOD.7
  • Cruise Speed965.52 km/h
  • Top Speed1,008.968 km/h
  • Service Ceiling15,240 m
  • Maximum Range11,800 km
  • Range with Max Payload10,000 km
  • Takeoff Run3,000 m
  • Unpaved / Short FieldNo
◇Cargo & Capacity6MOD.6
  • Maximum Payload20,000 kg
  • Cargo Hold Volume100
  • Troop Capacity22
  • Paratroop Capacity0
  • Pallet Positions0
  • Rear Loading RampNo
◆Aerial Refueling3MOD.3
▤Dimensions & Weights5MOD.5
  • Length46.33 m
  • Wingspan44.196 m
  • Height12.802 m
  • Empty Weight44,664.178 kg
  • Max Takeoff Weight134,719.2 kg
⬢Production3MOD.3
  • Total Built7
  • Operators4
  • Variants137
▲Service History3MOD.3
  • Retirement Year2001
  • Production Start1959
  • Operational StatusRetired
03 / History
SERVICE LIFESPANStill in Service
  1. 1957Entered service
  2. 1959Production started
  3. 1965Production ended
67
years in service
6
years in production
7
units produced
3
countries operating
ⓘ The producing country still actively operates it. 1 countries retired it.
04 / Operators
📚 Sources
📖 ENCYCLOPEDIA Browse the Tactical Transports entry →