LATEST Ancient Prototypes of Proxy Warfare: The Economic and Logistical Burden of Roman and Persian Proxy Networks among Arab Tribes and Caucasian Powers
SEARCH
DB ONLINE
EN ▾
Blériot-SPAD S.51
Photo: L'Aéronautique magazine · Wikimedia Commons · Public domain
REC // INTEL FEED

Blériot-SPADS.51

Air Superiority Fighters · France · 1924
ADD TO COMPARE

Blériot-SPADS.51

Blériot-SPAD S.51
Blériot-SPAD S.51 Photo: L'Aéronautique magazine · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Air-to-Air Lethality
30
Agility
50
Speed
25
Radar & Avionics
0
Range
40
Stealth
0
Survivability
45
Reliability
70
Technology
30
Cost-Effectiveness
75
Origin France
ManufacturerBlériot
CategoryAir Superiority Fighters
EraInterwar Period
In service1924
Operators4 countries
Quantity60
Data Quality87%
MASS(Military Archive Scoring System)
32
Air Superiority Fighters MASS Rating
60/196
Interwar Period
412/832
All-Time
Air Superiority Fighters · 10 axes scored
Air-to-Air Lethality
30
Agility
50
Speed
25
Radar & Avionics
0
Range
40
Stealth
0
Survivability
45
Reliability
70
Technology
30
Cost-Effectiveness
75
ⓘ Regardless of era, the same scoring system applies to all units in the air superiority fighters category.
01 / Overview
Blériot-SPAD S.51
Country
Prime contractor
Production
1924–
Quantity
60
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
AIR SUPERIORITY FIGHTERS · INTERWAR PERIOD
60
PERFORMANCE/PRICE
85
UNIT COST (2025 USD)
—
32
air superiority fighters category
ⓘ Performance/Price and MASS score are computed across all units in the air superiority fighters category, regardless of era.
02 / Specs & Design
◎General5MOD.5
  • First Flight1924
  • Crew1
  • Primary RoleFighter
  • GenerationBiplane interwar
  • In ServiceYes
◈Powerplant6MOD.6
▣Performance2MOD.2
  • Top Speed245 km/h
  • Rate of Climb7.2 m/s
◇Dimensions & Weights6MOD.6
  • Length6.45 m
  • Wingspan9.47 m
  • Height3.1 m
  • Wing Area24.27
  • Empty Weight990 kg
  • Loaded Weight1,360 kg
◆Armament7MOD.7
⬢Production3MOD.3
  • Total Built60
  • Operators4
  • Variants4
▲Service History2MOD.2
  • Production Start1924
  • Operational StatusRetired
03 / History
SERVICE LIFESPANStill in Service
  1. 1924Production started
102
years in service
60
units produced
4
countries operating
04 / Operators
Operator Inventory1country · 1units
1active
Blériot-SPAD S.51SALES4records
YearBuyerQuantityAmountPresent Value (2025)
1924Poland50——
1924Turkey1——
1924Russia1——
—Spain———
ⓘ "Present Value" is an estimated amount adjusted for inflation.
📚 Sources
📖 ENCYCLOPEDIA Browse the Air Superiority Fighters entry →