January 2000

Flying
by
George
Denniston
Denniston
is
presented to
enhance safe
flying by
providing
balloonists the
opportunity to
gain
experience from
others
without actually
flying. The
column is
edited
by
George Denniston
who is
a doctor and ballo onist
living
in
Seattle, Washington. Articles
may
be
signed
or anonymous
to
protect
th e
privacy of those involved, as
the author
wishes. If you have an
experience that
you wo uld
like to share with
oth ers,
send
your manuscript to
Balloo n Life
magazine, Hangar Flying
with
George
Denniston, 2336
47th Ave SW, Seattle,
WA 98116-23 31. Submissions
may be
typewritten, submitted on
disk (Mac or
IBM format),
or e-mailed to
tom@b alloonlife.com. Balloon
Life
pays
$35 for each
story
used.
took off north of Phoenix, Arizona, carry-
ing 6 passengers. The winds at takeoff
were calm, and the forecast did not in-
clude high speed, low altitude winds. For
an hour they proceeded in a southerly
direction, and then apparently decided to
land. As the b alloon descen ded over
houses, it picked up speed, and began to
descend more rapidly. The pilot burned,
but was unable to avoid hitting the roof of
onehome.It punched a holein the tile roof
and the ceiling of the family room. The
was
writing
some
checks
in
her den when she heard a loud crash. She
rushed to her family room, where she saw
the hole in the ceiling.
Interviewed
about
90
minutes
after
the
crash, she said, “I felt
real
shook
up,
but
I’m
feeling
better
now.
I
will
never
forget this.”
The
balloon
and
large
basket
went
on, hit
another
roof, knocking
off a
few
tiles,
then
skipped over a third
roof, and
landed in a field. The basket skidded on its
side for about
100
yards, and
stopped
at
the edge of a citrus grove.
A witness
who was driving to
work,
said things seemed
normal when he first
spotted
the balloon.
But
as
he
watched,
the
balloon seemed
to
speed up
from
10
mph
to
40-50 mph. “The wind was push-
ing
it hard,” he said.
A second
balloon
that
had
taken
off
from the same launch field made a bumpy
landing about a half-mile away from the
first balloon. The pilot of the second craft
said that high wind landings are about the
same
as
calm
landings,
except
that
the
basket
tips
over,
and
drags
along
the
ground until it comes to
a stop. “You just
hang
on,”
he
said.
“It’s
relatively
quite
fun.”
An experienced pilot commented on
the flight: “Mountains surround Phoenix.
On cold mornings the wind coming out of
the mountain passes is a drainage wind. It
hugs theground. When the winds aloft are
in speed (i.e. 16 knots at
3000 feet, and 8 knots at 6000 feet), and it
is colder in the mountains (39 degrees the
day of this flight), the drainage becomes a
river of air, complete with rapids. Instead
of rocks making the ripples, it is the small
hills, and the houses, which have replaced
the orange orchards. At altitudes of 300 to
500 feet AGL the winds are much slower.
“The solution to this particular situa-
tion is to keep flying. The fartherone goes
down the valley, the more the wind dissi-
pates. Glendale Airport, just 5 miles
fur-
ther
south,
was
reporting
only
8
knots.
Unfortunately this is
a weather phenom-
enon that flight service does not forecast.
But
by
keeping
accurate records of your
FSS reports, you will start to see patterns
to these micro-meteorological events that
could
help
you
anticipate
such
condi-
tions. The balloon in
question
was
doing
some white water rafting.
“About ten years ago, a similar situ-
ation caught a number of balloons. I was
above it all in a fixed wing aircraft,watch-
ing
them
land
fast.
I
was
able
to
radio
some of them, and tell them that the winds
further
on
at
Glendale
were
less.
Some
pilots
flew
on
and
landed
with
only
7
knots.”
The
passengers
were
taken
to
a
local
hospital
for
observation
and
treat-
ment.
This story was put together from a
newspaper account and from information
on the Internet.