Whitakers
Launch Report, November 15-16, 2003
Once again, the weather was the big story at Whitakers this weekend. Saturday was a lot like the curates egg:
Good, in parts. We started off
with decent conditions high clouds, light winds and the occasional light drizzle. At about 1:15 the drizzle worked its way up to a
light rain which soon became a steady rain, but the rain was falling straight down, so we
just gathered under our tents and canopies and waited it out as the temperature fell. And fell. By
3:00 the rain had stopped, but it was cold and damp. The rockets, however, did not stop
flying, and by sundown there were 42 recorded flights.
Sunday was completely different. High
clouds thinning out to blue skies by 2:30, warm temperatures (low 60s) and calm
winds: One of the finest days for rocketry
that we have seen in 2003.
First of all, the motor
breakdown:
As before, all clusters are classified according to total installed impulse. For example, Dave Morey flew the redoubtable Sinister 29 once again on an H180W, air-starting 2
H165Rs 2 seconds later, followed by 2 G40s 2 seconds after that. That makes 762 total Newton.seconds of total
thrust, so that flight was classified as a J.
That was a great flight, by the way. The
cloud cover accentuated the bright yellow flame of the ground-started H180 and the 2
red-flame motors came onstage low enough to be seen easily and make an artistic contrast.
The bad news is
that this is not many rocket flights, attendance is down and the big, exciting motors are
not being flown on Sport launch Saturdays at nearly the numbers that they were one or 2
years ago. The good news is that the
Discovery Channel special and general word-of-mouth information has generated a lot of
interest in rocketry and there were a lot of interested spectators, a few new Tripoli
members were signed up, and the certification process is back on track. One level 1 attempt was made, 1 level 2 attempt
was made and successfully completed and another L2 attempt was being set up on the pads as
dark was falling when one of the launch lugs broke off, and a level 2 written exam was
administered and passed.
Congratulations
go out to Mike McBurnett, who certified level 2 with his Binder Design Excel flown on a Cesaroni J285, making a
picture-perfect flight.
Other
highlights: The Ray family was there in
force: Jeff, Matthew and Rose Ray all made
flights and Matthew earned the most prolific flyer award with 8 flights on a
rain-shortened and Winter-shortened flying day. This
has got to be some kind of most rockets flown in the shortest time award, made
more impressive by the fact that the Estes launch controller only had one working lead for
most of the day.
Zack Kier made 5
flights, some interesting clusters and a fine 2 x D12-powered rocket he calls S.A.M.
On Sunday, the
homemade motor cult came back to fly their Experimental motors in absolutely perfect
rocketry weather. Ten flights were made,
including 3 Ms: The Big Boys were definitely In The House.
Mike McBurnett
wasted no time in using his level 2 status to good effect.
He flew his Excel again on a 38mm I motor made by Ed Rowe with his
latest White Lightning clone.
Dave Muesing had
2 flights, one was the Proto VII on the stoutest
sugar motor I have ever seen: Dave is really
beginning to get a handle on the KNO3/dextrose chemistry.
He also flew the Proto VIII on a
KNO3/Mg/RIO/Epoxy formula that was very exciting. Dave
is one of the small number of rocketeers who are taking the path less taken
and expanding our knowledge of propellants using oxidizers other than ammonium
perchlorate, and he has gotten really good at it.
Ed Rowe flew his
Black Brant on a K-sized 54mm version of his new
White Lightning clone for a perfect flight of 5176'.
Mark Miller also made the drive from Virginia to fly his Magnum on a 54mm J motor made by Alan Whitmore.
The undisputed
heavy-weight champ of the weekend was put up by Jim Livingston. He extended his 9-O-Mite with a section from his gargantuan Viper to make a 75 lb. rocket capable of handling
the power of his 115mm diameter, 3 grain M3300 made from one of Mark Lloyds recipes. The flight was fabulous, and recovery was perfect,
even though the rocket settled to earth about 200 yards short of the tree-line down by
Mrs. Smileys house.
Alan Whitmore started Sunday off with a flight of his Spork on a 3 5-grain M2774 motor cast from
the reliable CP3 formula. Flight (to 5800
feet) and recovery were perfect. Mark Lloyd
had a fine flight with his Magnum on a K250 made
with one of his older sparky formulas.
We now come to
one of the most controversial parts of the monthly launch reports, and by
controversial I mean the sort of information that I always get chastized for
reporting. A lot of people who fly at
Whitakers and are involved in Tripoli and NAR leadership positions, believe that I should
never report any failure, cato, shred, or land-shark in this public forum. I should only report positive results, lest the
general public get the impression that amateur rocketry is dangerous and needs to be
legislated out of existence. I disagree with
this approach in so many ways that it is difficult to know where to start. You may have noticed that I do not report
unsuccessful cert flights or many failures of any kind on Sport launch days. This is intentional, I dont want to
discourage anybody or embarrass any beginners. Occasionally
a wreck is so hilarious that I will report it, especially if I know the wrecker well
enough to know that he or she would not be embarrassed.
EX days are a
different matter. People who fly homemade
motors are comfortable living on the ragged edge of performance and when they fail it
usually makes such a spectacular show that the failure is as entertaining as the
successes, and even more informative. Its
no shame to blow up something on EX days, quite the contrary: if you never tear anything
up, you are probably not trying hard enough.
Now that I have
that rather long-winded prologue out of the way, it is my duty to report the demise of 2
rockets that came apart in a really BIG way. And
by coincidence, they were set up on the pads at the same time and met their ends minutes
apart. Alan Whitmore flew his Confusing Fall Warbler on a 5-grain 54 mm motor
loaded up with a K1300 made with the new 0.2% catocene formula. The Altaac reports that 1.3 seconds after the
button was pushed, the Warbler was haulin
the mail at 970 f/s when the fins came off and the bird tore itself into little pieces
a classic maxQ airframe failure. Altimeter,
Walston transmitter, parachute, and motor were recovered intact, so the re-build process
should not be too expensive.
Once the detritus from that debacle had floated back to earth, we pushed the button
on Mark Lloyds unnamed large black rocket that was loaded up with a 115mm 3 grain
M1800 made from one of Marks newer sparky formulas.
Liftoff was spectacular, the volcanic roar made by those chunks of hot titanium
being blasted out of the nozzle is almost heart-stopping.
The boost phase was breath-taking until about 1000 feet, when the forward bulkhead
let go and did some major damage to the rocket. I
can report that standing under a falling cloud of debris containing several burning chunks
of sparky propellant is not an experience for the faint-hearted. All of the propellant burnt up by land-fall, and
we were able to patrol the pasture at leisure, picking up a fragment of Marks rocket
here and a chunk of Alans rocket there. All
in all, it was a very educational experience.
Alan Whitmore, Prefect, Tripoli East NC