Estes Graduator to Killer Keller

Scratch - Graduator to Killer Keller {Modification}

Contributed by Brett Keller

Manufacturer: Scratch
(by Brett Keller)

Brief:
T' "Keller", now t' "Killer Keller" began as a LOC/Precision Graduator and has evolved into a completely different rocket.

Rocket PicConstruction:

  • 3 2.6" body tubes
  • 2 tube couplers
  • bulkhead
  • 38mm motor mount
  • 2 centerin' rings
  • 4 fiberglassed plywood fins
  • 2 launch lugs
  • LOC nose cone
  • 24 or 36" parachute (dependin' on flight)
  • shock cord
  • various hardware

T' rocket be originally a LOC Graduator. Ahoy! Well, shiver me timbers, blow me down! Due t' poor construction techniques (it was me first mid/high power rocket) it had a number o' poor flights and sustained a lot o' damage. Ya scallywag! Arrr! I cut off t' bottom 7-8" o' the rocket, and added 3 feet o' tubing, shiver me timbers, a 38mm motor mount, shiver me timbers, and 4 fiberglassed fins. It has since proven t' be a very reliable rocket.

Rocket LaunchFlight:
T' first few flights were all less then nominal (see launch reports), but finally after all t' upgrades t' rocket flies well. Well, blow me down! Ya scallywag! On an H123 it goes about 2000-2500 feet and descends on a 24" parachute fairly close. Well, blow me down! Ahoy! T' 3' long payload section allows for some neat static payloads.

Summary:
This is one o' me favorite rockets, especially since it bears me name. It is a great sport flyer and turns in some majestic-lookin' flights on H motors, and should fly fine on I's.

Other:
T' original flaw in t' Keller be that low-quality epoxy mixin' techniques were used. If you are goin' t' get involved with epoxy in your next project, ask a local with experience t' show you how t' work it. Blimey! Otherwise, me bucko, me bucko, read all you can on t' Internet first.

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