Data Quality84%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the utility / transport helicopters category.
01 / Overview
P.531
Category
Country
Prime contractor
Production
1958–1959
Quantity
6
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
UTILITY / TRANSPORT HELICOPTERS · EARLY COLD WAR
23
PERFORMANCE/PRICE
80
UNIT COST (2025 USD)
—
ⓘ Performance/Price and MASS score are computed across all units in the utility / transport helicopters category, regardless of era.
02 / Specs & Design
◎General4MOD.4
- First Flight1958
- Crew2
- Passengers3
- Primary RoleFive-seat utility helicopter
◈Powerplant6MOD.6
- Engine TypeBlackburn-Turbomeca Turmo turboshaft
- Number of Engines1
- Engine Power (each)242 kW
- Rotor Configurationsingle main rotor
- Main Rotor Diameter9.91 m
- Anti-Torque Typetail rotor
▣Performance5MOD.5
- Top Speed194 km/h
- Cruise Speed175 km/h
- Service Ceiling700 m
- Range390 km
- Rate of Climb2.74 m/s
◇Dimensions & Weights5MOD.5
- Fuselage Length8.84 m
- Height2.9 m
- Empty Weight949 kg
- Max Takeoff Weight1,724 kg
- Useful Load775 kg
◆Production2MOD.2
- Total Built6
- Variants3
▤Service History1MOD.1
- Operational Statusprototype only, not entered service
03 / History
SERVICE LIFESPANStill in Service
- 1958Production started
- 1959Production ended
68
years in service
1
years in production
6
units produced
1
countries operating
ⓘ The producing country still actively operates it.
06 / MASS Score
UTILITY / TRANSPORT HELICOPTERS RANKING Utility / Transport Helicopters · Early Cold War
MASS RANKINGSMASS ↗
166UTILITY / TRANSPORT HELICOPTERS23EARLY COLD WAR · UTILITY / TRANSPORT HELICOPTERS498UNITED KINGDOM · ALL WEAPONS130PERFORMANCE/PRICE · UTILITY / TRANSPORT HELICOPTERS
ⓘ Rankings are within theUtility / Transport Helicopterscategory.
📚 Sources