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Wiltshire Coroner David Masters
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Hercules C130K XV179 |
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1. Without foam: Explosive mix of fuel vapour
and air above liquid fuel ignites easily. Once this ignites,
a compression wave pressurises the remaining gas, increasing
the explosion.
2. With foam: Foam expands to fill space in
tank as fuel level drops. Vapour ignition is confined
to the area close to spark, stopping explosion.
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Hercules safety change not made
Swindon Advertiser
www.swindonadvertiser.co.uk
2nd April 2008
A safety measure that could have saved 10 servicemen, including
two from Swindon, on a plane shot down in Iraq, was not a priority,
an inquest heard.
An RAF Warrant Officer, called witness CD, who is now deceased,
and whose identity is top secret, had his statements about
the tragedy read out in Trowbridge Town Hall yesterday.
He was giving evidence into a 2005 incident, in which nine
RAF servicemen and a soldier - eight of whom were based at
RAF Lyneham - died when a Hercules aircraft was shot down
near Baghdad. The plane went down after enemy fire pierced
a fuel tank causing it to explode and blow off a wing.
The inquest heard how the plane was not fitted with ESF
(explosion-suppressant foam), which prevents planes' fuel
tanks exploding if they are hit. American Hercules planes
have had ESF since the 1960s.
"I can state that I was aware of the foam and the fact that
it was fitted to some US aircraft," said CD. "ESF never featured,
there were always far more important requirements."
After the tragedy, the Ministry of Defence pledged to retrospectively
fit all RAF Hercules with ESF, at a cost of up to £600,000
per plane. It has now been fitted to between 20 and 30 of
the UK's 44 Hercules, according to the Ministry of Defence.
During the statement he also specifically mentioned the
experience and his personal feeling towards two servicemen
from Swindon and one from Wiltshire. Witness CD, who had
been on two tours of duty and had more than 8,000 hours of
flying hours had served in, among others, the Falklands,
the first Gulf War, Afghanistan and Iraq.
He said: "David Stead was one of the best pilots I have
ever flown with.
"Master Engineer Gary Nicholson was a total professional
and Flight Sergeant Mark Gibson was a consummate professional." He
added that he knew all the crew were all competent and professional
and said he would deem many of them as very good friends'.
The inquest continues. |