Reviews

• Estes Graduator to Killer Keller By Brett Keller

  (by Brett Keller) Brief: The "Keller" , now the "Killer Keller" began as a LOC/Precision Graduator and has evolved into a completely different rocket. Construction: 3 2.6" body tubes 2 tube couplers bulkhead 38mm motor mount 2 centering rings 4 fiberglassed plywood fins 2 launch lugs LOC nose cone 24 or 36" parachute ...