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X-10 Water Rocket Crushes World Record with 1,696 foot (517 meter) average flight.
Updated: 10:15 p.m. EDT (02:15 GMT) May 26, 2005
GALWAY,
New York (Routers) -- With an average altitude of of 1,696 feet (517 meters), U.S. Water Rockets X-10 rocket bests the previous WRA2
record altitude by a
significant margin.
On a dark and cloudy evening the
U.S. Water Rockets Team waited patiently for a break in bad weather caused
by a stalled storm system which had prohibited launching for over a week..
The storm system was actually a blessing in disguise, as it offered an
opportunity for the team to upgrade many of the systems in the rocket with
significantly enhanced replacment parts. This paid off great dividends
when the break in the weather finally arrived late in the evening on May
26, 2005 as the team was able to prep and launch the two flights required
for the average altitude record. The new rocket systems provided
significantly improved performance over the former revisions, as the
announcement was made that the rocket surpassed its previous best effort
at notably lowered air pressure. The altimeter data graphs and
flight videos required for inclusion in the WRA2
Record books can be seen with the links at the bottom
of this article.
U.S. Water Rockets state that
the week long forecast for poor weather allowed them a window of
opportunity to make radical changes to the X-10 rocket design. Their first
objective was to carefully remove the nozzle and reshape the proprietary
convergence baffle for less turbulent flow. The modified nozzle was then
reinstalled. While the nozzle was being upgraded, a new finset was created
with a very nice tapered airfoil design. The sweep angle was altered
slightly to reduce risk of breakage if descending through trees. A new
parachute was added with a special super-elastic shock cord to prevent the
chute from tearing on deploy. A new deploy canister was added to make room
for the new chute. Fortunately, these can be fabricated quickly from a
standard 35mm film canister and lid. Finally, the entire electronics bay
was redesigned with the latest revision of the avionics controller board.
A few grams of weight were saved thanks to a smaller and more compact
design. This allows the entire assembly to fit inside the standard T-12
Fluorescent tube guard with plenty of room to spare. The extra room was
used to provide foam flotation for the assembly to reduce the risk of
sinking in the event of a catastrophic failure above the water. This extra
weight offsets the reduced weight of the controller so the overall weight
of the payload section remains largely the
same.
According to eyewitnesses, the
first flight of 1,694 feet (516.3 meters) took place
at 6:58PM and was submitted as the first of the two flights required by the
WRA2rules.
The onboard camera recorded a film of the entire flight as
required, despite the dark clouds overhead. The flight went off
flawlessly but fell just short of the intended landing area. A steady
breeze spoiled the careful aim of the U.S. Water Rockets Navigation
Engineer.
The second flight under
identical conditions took place a mere 57 minutes later, after a rapid
turnaround of the rocket as the team
raced against time to beat the sunset and approaching night. The camera was configured for
very low light conditions and was successfully able to capture footage
of the flight as proof of accomplishment. The footage is slightly more blurry
than hoped, but is as good or better than most water
rocket movies available elsewhere. The second submitted flight flew perfectly
to an apogee of 1,698 feet (517.5 meters) where the
updated parachute deploy system gently released the redesigned parachute and the
rocket descended to a perfect landing on target in the nearby
recreation field.
When weather permits, U.S. Water
Rockets plans to raise the record further with even higher
altitudes. In the meantime, U.S. Water Rockets is constructing a special modular
X-11 rocket as a test vehicle for some next-generation nozzle and
payload options which appear even more promising than the current
technology.
Graph: 5/26/2005 Altimeter Data Graph for Flight #1 Graph: 5/26/2005 Altimeter Data Graph for Flight #2 Related Story: X-10's Previous most recent record breaking flights Related Story: USWR's Next most recent record breaking flights
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