Boulton Paul P.120

Boulton Paul · United Kingdom · first flew 1952 · fighter

The Boulton Paul P.120 was a British research aircraft built to investigate the aerodynamics of the delta wing, and was the last Boulton Paul design to fly.

Recognition (WEFT)

W — WingsMid-mounted, delta
E — Engines1 × turbojet, fuselage-mounted
F — Fuselage9.03 m fuselage
T — TailT-tail

WEFT is AircraftIQ's four-point recognition method — how it works.

Spot it by:

Look for a small black-painted delta research jet with a swept fin carrying a high-set swept tailplane and a long jetpipe.

Specifications

Figures are for the representative variant described above; marks differ. See how AircraftIQ sources figures.

History

It was built to Air Ministry specification E.27/49 and was very similar to the earlier P.111, but with a horizontal tail and fixed wingtips. It made its maiden flight on 6 August 1952 flown by "Ben" Gunn from RAF Boscombe Down.

Variants

Only one P.120 was built. Plans to rebuild the P.111 into a second P.120 were not carried out.

Where you'll see it

It was a test aircraft and never entered service. On 28 August 1952 severe flutter tore off the port elevon and Gunn ejected safely, the first ejection from a delta-winged aircraft.

Related aircraft

AircraftIQ — the aircraft field guide: 8,606 recognition guides, live overhead identification, works offline.