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TDD
Photo: The item is part of a scrapbook assembled by Lieutenant Colonel Thomas C. Colt, Jr., USMCR, during his World War II service. · Wikimedia Commons · Public domain
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TDD

Reconnaissance / Surveillance Drones · United States · 1939
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TDD

TDD
TDD Photo: The item is part of a scrapbook assembled by Lieutenant Colonel Thomas C. Colt, Jr., USMCR, during his World War II service. · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Sensor Payload
10
Endurance
15
Operating Altitude
5
Range
10
Data-Link
5
Stealth / Survivability
5
Image Quality
10
Autonomy
5
Technology
5
Cost-Effectiveness
80
Origin United States
CategoryReconnaissance / Surveillance Drones
EraWorld War II
In service1939
Quantity15,000
Data Quality83%
11
Reconnaissance / Surveillance Drones MASS Rating
5/8
World War II
279/288
All-Time
Reconnaissance / Surveillance Drones · 10 axes scored
Sensor Payload
10
Endurance
15
Operating Altitude
5
Range
10
Data-Link
5
Stealth / Survivability
5
Image Quality
10
Autonomy
5
Technology
5
Cost-Effectiveness
80
ⓘ Regardless of era, the same scoring system applies to all units in the reconnaissance / surveillance drones category.
01 / Overview
TDD
Production
1939–
Quantity
15,000
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
RECONNAISSANCE / SURVEILLANCE DRONES · WORLD WAR II
5
PERFORMANCE/PRICE
75
UNIT COST (2025 USD)
—
11
reconnaissance / surveillance drones category
ⓘ Performance/Price and MASS score are computed across all units in the reconnaissance / surveillance drones category, regardless of era.
02 / Specs & Design
◎General4MOD.4
  • UAV ClassTarget drone
  • Category (MALE/HALE/Tactical/Micro)Target drone
  • First Flight1939
  • Primary RoleTarget drone
◈Airframe1MOD.1
▣Powerplant5MOD.5
  • Engine Typetwo-cylinder two-cycle piston engine
  • Number of Engines1
  • Engine Power4.47 kW
  • Electric PropulsionNo
  • Propeller / Configurationcontra-rotating
◆Armament2MOD.2
▤Control & Autonomy5MOD.5
⬢Production1MOD.1
  • Total Built15,000
▲Service History1MOD.1
  • Production Start1939
03 / History
SERVICE LIFESPANRetired
  1. 1939Production started
  2. 1940Sale: United States (53 units)
  3. 1941Sale: United States
87
years in service
15,000
units produced
04 / Variants
▚ WEAPON FAMILY
TDD 1939
📚 Sources
📖 ENCYCLOPEDIA Browse the Reconnaissance / Surveillance Drones entry →