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ST-1
Photo: Unknown author · Wikimedia Commons · Public domain
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ST-1

Tactical / Medium Bombers · United States · 1920
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ST-1

ST-1
ST-1 Photo: Unknown author · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Payload
45
Range
30
Accuracy
35
Speed
30
Survivability
25
Versatility
30
Avionics
20
Reliability
30
Technology
50
Cost-Effectiveness
30
Origin United States
ManufacturerStout Metal Airplane
CategoryTactical / Medium Bombers
EraInterwar Period
In service1920–1922
Operators1 countries
Quantity1
Data Quality84%
MASS(Military Archive Scoring System)
33
Tactical / Medium Bombers MASS Rating
73/132
Interwar Period
190/292
All-Time
Tactical / Medium Bombers · 10 axes scored
Payload
45
Range
30
Accuracy
35
Speed
30
Survivability
25
Versatility
30
Avionics
20
Reliability
30
Technology
50
Cost-Effectiveness
30
ⓘ Regardless of era, the same scoring system applies to all units in the tactical / medium bombers category.
01 / Overview
ST-1
Prime contractor
Production
1920–1922
Quantity
1
Unit Price (current)
$958.2K↗ 1816% inflation · 1922→2025
Original Price
$50.0K (1922)
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
TACTICAL / MEDIUM BOMBERS · INTERWAR PERIOD
73
PERFORMANCE/PRICE
30
UNIT COST (2025 USD)
$958.2K
Original: $50.0K (1922)
Inflation: +%1816
33
tactical / medium bombers category
ⓘ Performance/Price and MASS score are computed across all units in the tactical / medium bombers category, regardless of era.
02 / Specs & Design
◎General3MOD.3
  • First Flight1922
  • Primary Roletorpedo bomber
  • In ServiceNo
◈Powerplant3MOD.3
  • Engine TypePackard V-1237
  • Engine ModelPackard V-1237
  • Number of Engines2
▣Dimensions & Weights2MOD.2
  • Length11.28 m
  • Wingspan18.29 m
◇Production2MOD.2
  • Total Built1
  • Unit Cost50,000 USD
03 / History
SERVICE LIFESPANStill in Service
  1. 1920Production started
  2. 1922Production ended
106
years in service
2
years in production
1
units produced
1
countries operating
ⓘ The producing country still actively operates it.
04 / Operators
Operator Countries1country
📚 Sources
📖 ENCYCLOPEDIA Browse the Tactical / Medium Bombers entry →