I use rocket words as part of my every-day language. You will routinely hear me talking about "lawn-darts, Launch lugs, centering rings, cato's, BARs, etc". These words are so common for me that some-times I forget that some people dont speak rocket so here goes:
CATO: When a rocket fails catastrophically, usually by the motor over pressurizing and exploding, destroying the rocket.
Lawn Dart: when the Parachute fails to deploy and the rocket goes"ballistic", hitting the ground at hundreds of miles an hour. This usually means destruction of the rocket. Lawn Darts are very dangerous, sometimes hitting or coming close to the flight line.
Launch Lug: A small tube glued to the side of the rocket. The launch Rod slips through this tube
a BAR: Born-Again-Rocketeer: a person who was into the hobby as a child and came back to it as an adult.
Centering Rings: Doughnut shaped rings that center a smaller tube in a larger tube
Rail buttons: Small "buttons" that are screwed into the side of the rocket. These buttons slide down a launch rail. They are a great alternative to launch lugs:
Shock Cord: The cord that ties the Upper section to the lower section, It is usually made of Nylon, Kevlar or elastic.
Motor Retainer: A device that secures the motor to the back of the rocket.
Apogee: The peak of the flight, when you want the parachute to eject.
Shred: When the rocket exceeds the speed in which it can hold together. The air moving around the rocket tears it apart. Shreds are common in large minimum diameter rocket.
3FNC: 3 fins and a Nose Cone. Nothing special about the rocket. Most of my rockets are 3FNCs
Airframe: The tube on the rocket.
APCP: The common propellant for rocket engines F+. Similar to the propellant Nasa uses.
Zipper: When the Shock Cord tears through the airframe. This happens when the parachute ejects to early or to late
Igniter: An Electrically fired peice of pyrogen that lights the motor.
Fillet: Adhesive that is layed against the corner of joining parts and smoothed. Alex is terrible at making these.
Minimum diameter Rocket: A rocket where the motor tube is the airframe tube. These rockets are meant for speed.
LPR: Low Powered Rocket: A-D motors
MPR: Mid Power Rocket: E-G motors
HPR: High Power Rocket: H-O (and above) Motors
Dual Deployment: One (small) parachute is fired at Apogee. The small parachute brings the rocket down quickly. At a certain altitude (300-1000ft usually) A larger parachute is opened. The larger chute brings the rocket down slowly.
End Of Part 1
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