Data Quality84%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the ground attack / cas aircraft category.
01 / Overview
XA-21
Category
Country
Production
1938–
Quantity
1
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
GROUND ATTACK / CAS AIRCRAFT
—
PERFORMANCE/PRICE
75
UNIT COST (2025 USD)
—
ⓘ Performance/Price and MASS score are computed across all units in the ground attack / cas aircraft category, regardless of era.
02 / Specs & Design
◎General4MOD.4
- First Flight1938
- Crew3
- Primary RoleGround attack
- In ServiceNo
◈Powerplant6MOD.6
- Engine TypePratt & Whitney R-2180-7 Twin Hornet
- Engine ModelPratt & Whitney R-2180-7 Twin Hornet
- Number of Engines2
- AfterburnerNo
- SupercruiseNo
- Thrust VectoringNo
▣Performance2MOD.2
- Top Speed412.96 km/h
- Cruise Speed322.22 km/h
◇Dimensions & Weights7MOD.7
- Length16.154 m
- Wingspan19.812 m
- Height4.267 m
- Wing Area56.392
- Empty Weight5,787.936 kg
- Loaded Weight8,269.128 kg
- Max Takeoff Weight8,269 kg
◆Armament6MOD.6
- Weapons Payload2,520 kg
- Internal Gun** 4 × wing-mounted M1919 Browning machine guns ** 1 × nose-mounted in machine gun ** 4 × aft-firing in machine guns
- Air-to-Air MissilesNo
- Air-to-Ground MissilesNo
- Anti-Ship MissilesNo
- Nuclear CapableNo
▤Avionics & Stealth7MOD.7
⬢Production2MOD.2
- Total Built1
- Operators1
▲Service History1MOD.1
- Operational StatusPrototype
03 / History
SERVICE LIFESPANStill in Service
- 1912Entered service
- 1938Production started
- 1939Sale: United States (1 units)
88
years in service
1
units produced
1
countries operating
ⓘ The producing country still actively operates it.
04 / Operators
Operator Countries1country
XA-21SALES1records
| Year | Buyer | Quantity | Amount | Present Value (2025) |
|---|---|---|---|---|
| 1939 |  United States | 1 | — | — |
ⓘ "Present Value" is an estimated amount adjusted for inflation.
05 / MASS Score
GROUND ATTACK / CAS AIRCRAFT RANKING Ground Attack / CAS Aircraft
MASS RANKINGSMASS ↗
207GROUND ATTACK / CAS AIRCRAFT2265UNITED STATES · ALL WEAPONS137PERFORMANCE/PRICE · GROUND ATTACK / CAS AIRCRAFT
ⓘ Rankings are within theGround Attack / CAS Aircraftcategory.
📚 Sources