Manufacturer: | Scratch |
Brief:
The "Keller",
now the "Killer Keller" began as a LOC/Precision Graduator and has
evolved into a completely different rocket.
Construction:
The rocket was originally a LOC Graduator. Due to poor construction techniques (it was my first mid/high power rocket) it had a number of poor flights and sustained a lot of damage. I cut off the bottom 7-8" of the rocket, and added 3 feet of tubing, a 38mm motor mount, and 4 fiberglassed fins. It has since proven to be a very reliable rocket.
Flight:
The first few flights were all less then nominal (see launch reports), but
finally after all the upgrades the rocket flies well. On an H123 it goes about
2000-2500 feet and descends on a 24" parachute fairly close. The 3' long
payload section allows for some neat static payloads.
Summary:
This is one of my favorite rockets, especially since it bears my name. It is a
great sport flyer and turns in some majestic-looking flights on H motors, and
should fly fine on I's.
Other:
The original flaw in the Keller was that low-quality epoxy mixing techniques
were used. If you are going to get involved with epoxy in your next project,
ask a local with experience to show you how to work it. Otherwise, read all you
can on the Internet first.
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