Eurofighter Typhoon Lightning Strike Success 20 June 2003
(Hallbergmoos - 10 June, 2003) Eurofighter GmbH announced the
successful completion of a range of Lightning Strike Tests on the
Eurofighter Typhoon Weapon System required as part of the Type
Acceptance clearance ahead of Entry in to Service with the four
partner nations Germany, Italy, Spain and the United Kingdom. The
tests, carried out at BAE SYSTEMS Warton, were performed on a
Series Production Aircraft (SPA) BT002.
Eurofighter Typhoon successfully withstood a number of 200,000 Amp
simulated lightning strikes during tests in the BAE SYSTEMS
Electronic Warfare Test Facility at Warton, United Kingdom. This is
the highest strike the Weapon Systems specification requires and
also meets the necessary requirement for Type Acceptance.
The testing, using a series production standard aircraft, is
required to ensure that all systems on the aircraft remain
operational in the event of the aircraft being struck by
lightning.
Over the test programme, the aircraft ran live with all necessary
systems switched on. During the test the aircraft received hundreds
of strikes of between 20k and 150k Amps before reaching the
specified 200k Amp strike.
All testing to date has been conducted with the simulated strike
entering at the nose and exiting at the engines or wing-tips - two
of the most likely scenarios. The next stage is to computer model a
further 23 entry/exit point scenarios to ensure system integrity is
maintained in all possible combinations of entry and exit.
Tony Llewellyn, Electro-Magnetic Compatibility Technologist at BAE
SYSTEMS said: The Eurofighter Typhoon places a greater reliance on
electronics and with a large percentage of the aircraft being
carbon fibre, which is electrically resistive, it is much more
difficult to protect the aircraft compared with its predecessors,
which have a metal structure.
Chris Jones, Lightning Technologist at BAE SYSTEMS added We
believe that this is the first time ever in a clearance programme
that an aircraft with all systems powered has been subjected to a
200k Amp simulated lightning strike and it is a great achievement
for everyone involved that no critical systems effects
resulted.
The 200k Amp limit covers more than 99.9% of all lightning strikes
to aircraft flying anywhere in the world, and on average a military
aircraft gets struck by lightning twice in its entire life, so the
chances of an aircraft ever being hit by a 200k Amp bolt are small.
BT002 will have received 1,600 strikes by the time testing is
complete, and we have successfully proved that Eurofighter Typhoon
is more than capable of withstanding such a strike.