AMA Record Trial 12/01/05
Hancock High Gym; wooden 43' geodic dome, Cat 11 site
Weather, 32degree F and blustery
Inside air temperature; 75 degrees F at the start of the session
Drift; None at first, but as the air temperature dropped, the
drift picked up
Model; ROG Stick, Event 214 Model name, "Magic" New unbraced
wing design, V/P Prop; 10"D, Low 15P, High 26P, Motor
5/99, .028X8.25", Winds 1820, Back off 30, Launch tq;. .085 in.
oz.
Model specifications; The projected area of the supporting surfaces
(s) shall not exceed 30 square inches. No limit on, weight, rubber,
prop, or covering. Model has to take off the ground or floor under
its own power.
The attempt to set a new ROG Stick record started off on the wrong
foot, I had checked the model before leaving the house, but found a
broken wing tip after removing it from the box. The repair was made,
and by the time the glue had dried, the CD, and timers had arrived.
After a quick low power test flight to check the trim, the model was
ready for the first attempt. This particular model is the best one
that I have ever built in regards to taking off the ground. Having
said that, on the first flight it got into some ground turbulence
about four feet off of the floor, stalled, and tail slid to the
floor. It was floundering around on the floor trying to tear the
blades off the prop. When I tried to pick up the model, I must have
pinched the m/s, and it collapsed. It's repairable, but I had to go
to a back up model of the same design that hadn't been flown in
quite awhile.
By the time the second model was ready, the air temperature had
dropped to 68 degrees, and the drift had picked up. I used the same
prop, rubber, and all the rubber stats listed above. This time the
model climbed slowly through some ground turbulence, and was on its
way. At six minutes it leveled off at eighteen feet, then started
drifting toward the north end of the dome, and a half court
basketball goal support arm. It didn't take long to reach the arm,
and I had to make a steer to move the model near the center of the
floor. The RPM's picked up slightly, and it climbed to about twenty
two feet, and then started drifting toward the south end of the
building, and another support arm. At ten minutes, I had to make
another steer, and this time the model climbed to thirty feet, and
stayed there until it started to descend. On three consecutive
circles at thirty feet, it hit turbulence that forced it back toward
the center of the building. During the decent, it hit some more
rough air which caused the model to stall, and tail slide for about
six feet. The model dead sticked from ten feet, and landed at 18:23,
and there was two seconds of prop stop. The temperature was still
dropping, and I decided to call it quits for the night. The old
record of 17:07 was set in the same site in 1998. A record
application will be sent to the AMA for approval. My best full
motor, low ceiling flight with this type of model was done without
steering and it only climbed 15'.Unfortunately that 19+ flight was
unofficial.
Larry Coslick
Received on Sat Jan 07 2006 - 11:11:51 CET
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:44 CET