Flight Log for 2 August, 1998, Monroe, WA

Sunny and hot, variable light breezes probably due to thermal activity; overall calm.
Model Flt 
#
Recovery Type Motor Comments
Spike (2)
15
18" nylon parasheet F62-6 Dark Star The launch and boost were perfect, tracking as if on rails once the initial rod whip was straightened out.  The rocket coasted to apogee, as usual, and ejected at the lowest possible velocity -- and broke the shock cord between the parachute and nose cone.  The body recovered normally, with a little denting of the tube mouth from a tumble on landing; the nose cone fell in from around 1500' AGL, and (due to weight in the tip) actually stabilized and streamlined the last couple hundred feet.  After a little hike to recover the body and look for the nose cone, I was walking back toward the flight line along my line on the nose and found it stuck in the ground like a mumblety-peg.  No damage, except to my dignity, and the Spike has provision to permit installation of a replacement shock cord; this rocket only needs about fifteen minutes of attention to fly again.
Fat Fat Boy (2)
5
18" nylon parasheet Estes D12-7, 3x Estes C6-7 With four motor mounts loaded, I prepped the motors with Jet-X fuse, trying to get reliable ignition and minimize outboard ignition delay despite launch system problems that had been causing fits on some pads.  With the Jet-X wick, a single igniter fires all motors via a hot-burning fuse.  In this case, after one misfire caused by dirty clips or launch system problems, I got a good ignition of the core motor, which lifted the rocket off the pad, followed by air ignition of two of the three outboards  about one second into the burn -- but by that point, there was enough velocity that the off-center thrust didn't cause a problem.  Ejection was close to apogee, but with enough horizontal speed that the shock cord tore out at the root, leaving the body to tumble into a weedy area without damage while the nose recovered normally, albeit slowly, under parachute.  At this point, with two flights and two separations, I considered it prudent to call it a day, and packed up to go home.  Once again, however, repairs will be simple; I just need a better method of attaching the shock cord.


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