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Douglas C-1
Photo: U.S. Air Force · Wikimedia Commons · Public domain Use of this image does not imply endorsement by the U.S. Department of Defense (DoD).
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DouglasC-1

Tactical Transports · United States · 1925
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DouglasC-1

Douglas C-1
Douglas C-1 Photo: U.S. Air Force · Wikimedia Commons · Public domain Use of this image does not imply endorsement by the U.S. Department of Defense (DoD).
* Absolute score — assessed within category · no era adjustment
Payload
30
Short / Rough-Field Capability
40
Range
25
Cargo Versatility
35
Reliability
50
Self-Protection
5
Low-Altitude Capability
60
Versatility
45
Technology
20
Cost-Effectiveness
70
Origin United States
ManufacturerDouglas
CategoryTactical Transports
EraInterwar Period
In service1925–1927
Operators1 countries
Quantity26
Data Quality84%
MASS(Military Archive Scoring System)
37
Tactical Transports MASS Rating
9/11
Interwar Period
201/215
All-Time
Tactical Transports · 10 axes scored
Payload
30
Short / Rough-Field Capability
40
Range
25
Cargo Versatility
35
Reliability
50
Self-Protection
5
Low-Altitude Capability
60
Versatility
45
Technology
20
Cost-Effectiveness
70
ⓘ Regardless of era, the same scoring system applies to all units in the tactical transports category.
01 / Overview
Douglas C-1
Prime contractor
Production
1925–1927
Quantity
26
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
TACTICAL TRANSPORTS · INTERWAR PERIOD
9
PERFORMANCE/PRICE
85
UNIT COST (2025 USD)
—
37
tactical transports category
ⓘ Performance/Price and MASS score are computed across all units in the tactical transports category, regardless of era.
02 / Specs & Design
◎General4MOD.4
  • First Flight1925
  • Service Entry Year1925
  • Crew2
  • Primary Rolecargo/transport aircraft
◈Powerplant3MOD.3
  • Engine TypeLiberty V-1650-1
  • Number of Engines1
  • Power (each, turboprop)324 kW
▣Performance4MOD.4
  • Cruise Speed136.782 km/h
  • Top Speed186.667 km/h
  • Service Ceiling4,526.28 m
  • Maximum Range620 km
◇Cargo & Capacity2MOD.2
  • Maximum Payload1,100 kg
  • Vehicle Capacitysix passengers or about 1,100 kg cargo
◆Aerial Refueling2MOD.2
  • Aerial TankerYes
  • Refueling Method (boom/drogue)air-to-air refueling (as tanker)
▤Dimensions & Weights5MOD.5
  • Length10.668 m
  • Wingspan17.25 m
  • Height4.27 m
  • Empty Weight1,740.01 kg
  • Max Takeoff Weight2,923 kg
⬢Production3MOD.3
  • Total Built26
  • Operators1
  • Variants3
03 / History
SERVICE LIFESPANStill in Service
  1. 1925Production started
  2. 1927Production ended
101
years in service
2
years in production
26
units produced
1
countries operating
ⓘ The producing country still actively operates it.
04 / Operators
Operator Countries1country
📖 TERMS ON THIS PAGE1terms
Aerial tanker: military aircraft equipped to refuel other aircraft in flight using a system of hoses or booms.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Tactical Transports entry →