Last Updated：2025/12/30
Sentence
The
possibility
was
studied
that
there
might
be
some
unknown
phenomenon
at
work
that
could
cause
a
reduction
in
structural
stiffness
with
age.
Such
a
reduction
in
stiffness
could
result
in
a
reduced
flutter
speed
and
lead
to
flutter.
In
2004,
Airbus
conducted
GVT
in
support
of
its
MRTT
program.
The
testing
was
conducted
on
an
aged
A310
aircraft
(MSN
523)
that
had
accumulated
over
28
000
flight
hours.
This
test
aircraft
had
the
same
design
of
VTP
and
rudder
as
the
occurrence
aircraft.
GVT
results
found
that
fin
bending
and
rudder
rotation
frequencies
of
the
MRTT
test
aircraft
were
consistent
with
those
obtained
during
the
original
A310-300
certification.
No
indication
was
found
to
suggest
that
stiffness
had
reduced
with
age.
Quizzes for review
The possibility was studied that there might be some unknown phenomenon at work that could cause a reduction in structural stiffness with age. Such a reduction in stiffness could result in a reduced flutter speed and lead to flutter. In 2004, Airbus conducted GVT in support of its MRTT program. The testing was conducted on an aged A310 aircraft (MSN 523) that had accumulated over 28 000 flight hours. This test aircraft had the same design of VTP and rudder as the occurrence aircraft. GVT results found that fin bending and rudder rotation frequencies of the MRTT test aircraft were consistent with those obtained during the original A310-300 certification. No indication was found to suggest that stiffness had reduced with age.
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