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Hughes OH-6B Cayuse
Photo: U.S. Army · Wikimedia Commons · Public domain Use of this image does not imply endorsement by the U.S. Department of Defense (DoD).
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HughesOH-6BCayuse

Utility / Transport Helicopters · United States · 1965
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HughesOH-6BCayuse

Hughes OH-6B Cayuse
Hughes OH-6B Cayuse Photo: U.S. Army · Wikimedia Commons · Public domain Use of this image does not imply endorsement by the U.S. Department of Defense (DoD).
* Absolute score — assessed within category · no era adjustment
Payload / Capacity
60
Range
55
Versatility
80
Reliability
85
Speed
60
Survivability
50
Hot-and-High Performance
70
Maintainability
80
Technology
75
Cost-Effectiveness
90
Origin United States
ManufacturerHughes Aircraft Company
CategoryUtility / Transport Helicopters
EraCold War
In service1965
Operators8 countries
Data Quality87%
69
Utility / Transport Helicopters MASS Rating
31/61
Cold War
78/208
All-Time
Utility / Transport Helicopters · 10 axes scored
Payload / Capacity
60
Range
55
Versatility
80
Reliability
85
Speed
60
Survivability
50
Hot-and-High Performance
70
Maintainability
80
Technology
75
Cost-Effectiveness
90
ⓘ Regardless of era, the same scoring system applies to all units in the utility / transport helicopters category.
01 / Overview
Hughes OH-6B Cayuse
Prime contractor
Production
1965–
Operators
Conflicts
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
UTILITY / TRANSPORT HELICOPTERS · COLD WAR
31
PERFORMANCE/PRICE
92
UNIT COST (2025 USD)
—
69
utility / transport helicopters category
ⓘ Performance/Price and MASS score are computed across all units in the utility / transport helicopters category, regardless of era.
02 / Specs & Design
◎General6MOD.6
  • First Flight1963
  • Service Entry Year1966
  • Crew2
  • Passengers5
  • Primary RoleLight Observation Helicopter / utility
  • In ServiceYes
◈Powerplant7MOD.7
  • Engine TypeAllison T63-A-720 turboshaft
  • Number of Engines1
  • Engine Power (each)313.32 kW
  • Rotor Configurationfour-bladed full-articulated
  • Main Rotor Diameter8.03 m
  • Main Rotor Blades4
  • Anti-Torque Typetail rotor
▣Performance10MOD.10
  • Top Speed241 km/h
  • Cruise Speed216 km/h
  • Never-Exceed Speed (VNE)282 km/h
  • Service Ceiling4,815 m
  • Hover Ceiling (IGE)3,140 m
  • Hover Ceiling (OGE)2,330 m
  • Range430 km
  • Ferry Range2,450 km
  • Rate of Climb10.5 m/s
  • Endurance360
◇Dimensions & Weights7MOD.7
  • Fuselage Length7.01 m
  • Height2.48 m
  • Rotor Disc Area50.6
  • Empty Weight481 kg
  • Max Takeoff Weight1,157 kg
  • Useful Load676 kg
  • Cabin Volume1.2
◆Armament & Mission6MOD.6
▲Production2MOD.2
  • Total Built1,420
  • Variants10
◎Service History2MOD.2
  • Production Start1965
  • Operational StatusIn service
03 / History
SERVICE LIFESPANStill in Service
  1. 1945First deployment: Cold War
  2. 1965Production started
61
years in service
2
countries operating
ⓘ The producing country still actively operates it. 6 countries retired it.
04 / Conflicts
HUGHES OH-6B CAYUSE · CONFLICTS SERVED IN100% win
Total Conflicts
1
Victories
1
Ongoing
0
Losses
0
ⓘ Shown only from conflicts recorded in our database.
05 / Variants
▚ WEAPON FAMILY
Hughes OH-6B Cayuse 1965
06 / Operators
📖 TERMS ON THIS PAGE2terms
Seats designed to absorb crash forces, reducing injury to occupants.
Fuel tanks equipped with a material that automatically seals punctures from small arms fire or shrapnel to prevent leakage and reduce fire risk.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Utility / Transport Helicopters entry →