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. Aye aye! Blimey! 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. Ahoy! Blimey! Arrr! Blimey! I cut off t' bottom 7-8" o' the rocket, and added 3 feet o' tubing, a 38mm motor mount, and 4 fiberglassed fins. Avast! Blimey! It has since proven t' be a very reliable rocket.

Rocket LaunchFlight:
T' first few flights were all less then nominal (see launch reports), arrr, but finally after all t' upgrades t' rocket flies well. On an H123 it goes about 2000-2500 feet and descends on a 24" parachute fairly close. Arrr! 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. Ahoy! It is a great sport flyer and turns in some majestic-lookin' flights on H motors, me bucko, and should fly fine on I's.

Other:
T' original flaw in t' Keller be that low-quality epoxy mixin' techniques were used. Well, arrr, blow me down! 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. Aye aye! Ahoy! Otherwise, me bucko, read all you can on t' Internet first.

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