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 ▾
Heinkel He 51
Photo: Blende22 · Wikimedia Commons · CC BY-SA 4.0
REC // INTEL FEED

HeinkelHe51

Air Superiority Fighters · Germany · 1935
ADD TO COMPARE

HeinkelHe51

Heinkel He 51
Heinkel He 51 Photo: Blende22 · Wikimedia Commons · CC BY-SA 4.0
* Absolute score — assessed within category · no era adjustment
Air-to-Air Lethality
20
Agility
30
Speed
15
Radar & Avionics
0
Range
25
Stealth
0
Survivability
20
Reliability
70
Technology
10
Cost-Effectiveness
85
Origin Germany
CategoryAir Superiority Fighters
EraInterwar Period
In service1935–1939
Operators4 countries
Quantity700
Data Quality88%
MASS(Military Archive Scoring System)
22
Air Superiority Fighters MASS Rating
135/196
Interwar Period
647/832
All-Time
Air Superiority Fighters · 10 axes scored
Air-to-Air Lethality
20
Agility
30
Speed
15
Radar & Avionics
0
Range
25
Stealth
0
Survivability
20
Reliability
70
Technology
10
Cost-Effectiveness
85
ⓘ Regardless of era, the same scoring system applies to all units in the air superiority fighters category.
01 / Overview
Heinkel He 51
Country
Production
1935–1939
Quantity
700
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
AIR SUPERIORITY FIGHTERS · INTERWAR PERIOD
135
PERFORMANCE/PRICE
80
UNIT COST (2025 USD)
—
22
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
◎General6MOD.6
  • First Flight1933
  • Service Entry Year1934
  • Crew1
  • Primary Rolefighter and ground‑attack biplane
  • Generationpre‑World War II
  • In ServiceNo
◈Powerplant5MOD.5
  • Engine Typepiston
  • Engine ModelBMW VI
  • Number of Engines1
  • AfterburnerNo
  • Internal Fuel240 kg
▣Performance5MOD.5
  • Top Speed330 km/h
  • Top Speed (Mach)0.27 Mach
  • Service Ceiling7,700 m
  • Ferry Range570 km
  • Rate of Climb5.5 m/s
◇Dimensions & Weights7MOD.7
  • Length8.4 m
  • Wingspan11 m
  • Height3 m
  • Wing Area27.2
  • Empty Weight1,800 kg
  • Loaded Weight2,300 kg
  • Max Takeoff Weight2,500 kg
◆Armament5MOD.5
▤Production3MOD.3
  • Total Built700
  • Operators3
  • Variants9
⬢Service History4MOD.4
  • Retirement Year1952
  • Production Start1934
  • Production End1939
  • Operational Statusretired
03 / History
SERVICE LIFESPANStill in Service
  1. 1935Production started
  2. 1936First deployment: Spanish Civil War
  3. 1937Sale: Spain (79 units)
  4. 1939Production ended
91
years in service
4
years in production
700
units produced
1
countries operating
ⓘ The producing country still actively operates it. 3 countries retired it.
04 / Variants
▚ WEAPON FAMILY
Heinkel He 51 1935
// DERIVATIVES
05 / Operators
Heinkel He 51SALES3records
YearBuyerQuantityAmountPresent Value (2025)
1937Spain79——
1936Spain6——
—Bulgaria12——
ⓘ "Present Value" is an estimated amount adjusted for inflation.
📖 TERMS ON THIS PAGE2terms
Air-to-air missiles are guided missiles fired from aircraft to engage other aircraft. They are used for self-defense and to gain air superiority.
Air-to-Ground Missiles are guided missiles fired from aircraft to attack ground targets. They enable aircraft to engage and destroy enemy ground positions, vehicles, and installations.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Air Superiority Fighters entry →