Percival P-6 Mew Gull G-AEXF
In all, six
Percival P6 Mew Gull aircraft were produced. Of these, only
one - G-AEXF - survives, and that has been rebuilt twice -
once in 1978 to it's original factory specifications, and
more recently, to its Cape Records configuration.
The original Mew Gull was the
first civil aircraft to exceed a speed of 200 miles per
hour. Later versions introduced steady improvements, and the
fastest speed recorded by G-AEXF in its 1938 Kings Cup
configuration was in excess of 270 mph. At sea level, it was
faster than a Hawker Hurricane.
One of the
entrants in the 1936 Schlesinger Race from Portsmouth to
Johannesburg was Major Allister Miller, regarded by many as
the father of civil aviation in South Africa. Major Miller
was unfortunately forced to abandon the race in Belgrade,
and his aircraft, a Mew Gull named The Golden City
and having the registration ZS-AHM, was returned to England
where it was subsequently bought by Bill Humble. Humble was
however about to get married, and soon had second thoughts -
under the circumstances - regarding the suitability of the
aircraft. He therefore accepted an offer to swap it for a
Leopard Moth owned by Alex Henshaw, and the Mew Gull was
re-registered in Henshaw's name as G-AEXF. Thus, XF had a
close association with South Africa even before the flight
which made it famous.
The aircraft
underwent considerable modification for the King's Cup race
of 1938, which Alex Henshaw won at a record speed of 236.25
mph.
Following
this success, XF was further modified for the Cape Records
flight. These modifications included such things as
increased fuel capacity (87 imperial gallons), modified
instrumentation, and a retractable navigation light mounted
just behind the cockpit canopy. The ARB were unwilling to
issue a certificate of airworthiness before a second
navigation light was fitted underneath the aircraft. Henshaw
pointed out that since he would be the only person flying at
night over Central Africa, this would serve no purpose other
than to slow the aircraft down by several miles per hour,
and the issue was not raised again.
Essex Aero
Alex
Henshaw, Jack Cross and restored Mew Gull, 1978 (From The
Flight of the Mew Gull)
Much of the
customization for both for the 1938 King's Cup and for the
Cape Records attempt was carried out by a small aero
engineering company Essex Aero Ltd, based at Gravesend,
London and run by Jack Cross. Alex Henshaw gives Cross much
of the credit for the outstanding performance and
reliability displayed by the Mew Gull in such diversely
demanding roles as King's Cup racer and Cape Records
challenger. Jack Cross was also involved in the 1978
restoration of G-AEXF to her factory configuration.
Panel and Instrumentation
Instrumentation was extensively modified for the Cape
Records attempt. There was no turn-and-bank indicator, but
instead a very stable gyro compass, which Alex Henshaw
regards as critical to the success of the flight. The was
also a large Huson P5 magnetic compass mounted on a bracket
just in front of the pilot, and a chronometer with three
stopwatches for dead reckoning.
Alex
Henshaw taxiing the Mew Gull
The Mew Gull
was not an ideal aircraft for a long-distance record flight.
The cockpit was extremely cramped, being only about two feet
wide, and just high enough to clear the pilot's head.
Additional fuel tanks were fitted to extend the range to
over 1200 miles, and these when full, shifted the centre of
gravity so far back that a special certificate of
airworthiness had to be issued, which lapsed upon completion
of the flight. The view forward was so poor on the ground
that Henshaw devised a system of taxiing which involved
walking beside the aircraft with the canopy open and his
hand on the throttle! This feature almost certainly
contributed to the tragic death of Campbell Black, who was
killed when his Mew Gull was involved in a collision with a
Hawker Hart while taxiing on the ground.
The Mew Gull panel today.
Note that the turn and bank indicator was not present in the
original Cape Records configuration, nor was the
panel-mounted magnetic compass, which replaces the original
gyro compass. Note also the Huson P5 magnetic compass
mounted on a bracket attached to the right hand side of the
cockpit.
Restoration of the Mew Gull
G-AEXF was
sold in 1939. After the war, Hugh Scrope brought it back to
England from France where it had spent the war years, and
with the assistance of Doug Bianci, made valiant efforts to
keep the aircraft operational. Unfortunately it was damaged
during an accident while landing, and was then acquired by
Fred Dunkerly. Subsequent modifications - carried out with
the intention of improving forward visibility - were
inappropriate and disfiguring. Nevertheless, XF won the 1953
King's Cup - albeit at a speed of 213.5 mph - 23 mph slower
than in 1938.
In 1975 XF
was acquired by Desmond Penrose, who restored it to its
original factory specifications. This process was completed
in 1978. Subsequently the aircraft was again seriously
damaged in a crash, but was once more restored - this time
to its Cape Records configuration. In 1996 it was placed -
in full flying condition - in the care of the Shuttleworth
Collection, where it remains preserved as part of Britain's
aeronautical heritage. |