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.531-2
Category
Country
Production
1959–
Quantity
2
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
UTILITY / TRANSPORT HELICOPTERS · EARLY COLD WAR
21
PERFORMANCE/PRICE
75
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
◎General5MOD.5
- First Flight1958
- Service Entry Year1959
- Crew2
- Passengers4
- Primary RoleUtility helicopter
◈Powerplant8MOD.8
- Engine TypeBlackburn Nimbus / de Havilland Gnome H1000 turboshaft
- Number of Engines1
- Engine Power (each)474 kW
- Transmission Rating474 kW
- Rotor ConfigurationSingle main rotor
- Main Rotor Diameter9.91 m
- Main Rotor Blades4
- 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 & Weights6MOD.6
- Fuselage Length8.84 m
- Height2.9 m
- Rotor Disc Area77.07
- Empty Weight949 kg
- Max Takeoff Weight1,724 kg
- Useful Load775 kg
◆Armament & Mission2MOD.2
- Hardpoints0
- Rescue HoistNo
▤Avionics6MOD.6
⬢Survivability6MOD.6
▲Production2MOD.2
- Total Built2
- Variants3
◎Service History2MOD.2
- Production Start1959
- Operational StatusPrototype / Evaluation
03 / History
SERVICE LIFESPANRetired
- 1959Production started
67
years in service
2
units produced
0
countries operating
ⓘ 1 countries retired it.
06 / MASS Score
UTILITY / TRANSPORT HELICOPTERS RANKING Utility / Transport Helicopters · Early Cold War
MASS RANKINGSMASS ↗
155UTILITY / TRANSPORT HELICOPTERS21EARLY COLD WAR · UTILITY / TRANSPORT HELICOPTERS442UNITED KINGDOM · ALL WEAPONS149PERFORMANCE/PRICE · UTILITY / TRANSPORT HELICOPTERS
ⓘ Rankings are within theUtility / Transport Helicopterscategory.
📚 Sources