Saro P.531
Saunders-Roe · United Kingdom · first flew 1958 · helicopter
The Saunders-Roe P.531 was a light turbine-powered helicopter prototype developed in the late 1950s as a private venture, directly leading to the Westland Scout and Wasp which became important British military helicopters. It demonstrated the viability of turboshaft propulsion in a compact utility helicopter.
Recognition (WEFT)
| W — Wings | High-mounted, rotary |
|---|---|
| E — Engines | 1 × turboshaft, fuselage-mounted |
| F — Fuselage | 9.24 m fuselage |
| T — Tail | Conventional |
WEFT is AircraftIQ's four-point recognition method — how it works.
Spot it by:
- Light utility helicopter prototype from Saunders-Roe
- Single turboshaft, four-blade main rotor
- Ancestor of the Westland Scout and Wasp
Light, slim-bodied helicopter with a four-blade main rotor and tail rotor, skid undercarriage, and a turbine engine above the cabin — the clear ancestor of the Westland Scout in layout and proportion.
Specifications
- The Saro P.531 has a length of 9.24 m (30 ft).
- It has a wingspan of 9.45 m (31 ft).
- Its maximum speed is 195 km/h (121 mph).
- Typical crew: 1–2.
Figures are for the representative variant described above; marks differ. See how AircraftIQ sources figures.
History
Saunders-Roe flew the P.531 in 1958 using a Bristol Siddeley Nimbus turboshaft engine, offering a significant performance advantage over piston-powered contemporaries. Following the merger of Saunders-Roe into Westland in 1960, the P.531 was developed into the Scout (Army) and Wasp (Navy) production helicopters.
Variants
The P.531 prototype led directly to the P.531-0 and P.531-2 pre-production variants before the production Scout and Wasp; these sub-variants refined the rotor system and airframe details.
Where you'll see it
The P.531 itself was a development aircraft only; its descendants the Scout and Wasp served the British Army and Royal Navy respectively from the early 1960s.
Related aircraft
- Saunders-Roe P.531-0
- Saunders-Roe SR.53
- Saunders-Roe P.531-2
- Saunders-Roe Princess
- Bell 204B
- Boeing Vertol 107
- Kaman UH-43C Huskie
- Sikorsky HH-52A Seaguard
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