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Duncan Simpson

Duncan M S Simpson OBE

Simpson joined Hawker in 1954 and became Hawker’s Chief Test Pilot in 1970. He flew the P.1127 as well as making the first flight in a Hawk. In 2011, the Guild of Air Pilots and Air Navigators awarded him the Guild Award of Honour in recognition of his outstanding lifetime contribution to aviation: “for his long record as a particularly accomplished pilot, his outstanding contribution to experimental test flying, his intimate involvement in bringing three iconic British Fighters – the Hunter, Harrier and Hawk – into service and his exemplary commitment to British aviation generally”.

Duncan centre frame in this group shot of Hawker test pilots

A comprehensive account of Duncan’s flying time is here.

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Top Gear

The real history of the Top Gear Track

  • 1938

The BBC Top Gear track has been laid out on the main runway of the former WWII RAF and RCAF air base.   The perimeter roads used for Gambon and the finish line were laid over the route of original B-Roads that were ripped up when the airfield was constructed in 1941.  One cottage, Broadmead, was situated where the TopGear FollowThrough is now, but the cottage was lifted whole and winched half a mile on rollers to the otherside of the airfield.

Broadmead cottage original location in 1942 now at FollowThrough of Top Gear track

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Engine running pens – Listed Grade II

The engine running or detuning pens were originally built to test the aircraft engines for the Hunter.

Three pens were arranged in a curve. One has been completely removed.

Of the two remaining; the unique example survives that was used to test all ‘jump jets’ or VTOL. The VTOL pen is lined with metal sheeting and sound absorption. Channels below ground take extract for the jets nozzles. Historical significance is for the development of the ‘jump jet’, P1127 through to the Harrier. All aircraft engines were tested and run here before being assembled and shipped worldwide.

The two engine running pens were given Grade II Listed Building status in December 2017.  Historic England’s detailed Listing report

The first P.1127, XP831, in the ground running pen at Dunsfold with Rolls-Royce representative John Vowles in the cockpit.  Photo courtesy BAE Systems via Brooklands Museum
Pen Construction 1960’s: BAE Systems via Brooklands Museum
Hawk 200 in Engine Running Pen (1980s) (courtesy Brooklands Museum archive)

Engine running pens

 

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VTO sites – Listed Grade II

Photo courtesy of BAE Systems via Brooklands Museum

The main runway has the unique Vertical Take Off Grids, known as VTO Grids or Hover Grids – used for the tethering of jump jets such as the Harrier whilst hovering. These are located on aprons that adjacent the main runway and are within the Operational Readiness Platform [ORP].  Beneath these gratings is a large void chamber to take the hot air, condensation and gases from the downdraft of the jet engines of the aircraft. Within the eastern Engine Testing Pen there is a similar arrangement that is a unique feature to Dunsfold.

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