This page lists some of the external links to resources that are helpful to the rocketry hobbyist.
The following are the organizations that sanctions large launch events. They certify clubs, organization members, and motor equipment.
The National Association of Rocketry (NAR) is a non-profit tax-exempt scientific organization. It is dedicated to consumer safety, youth education, and the advancement of technology in the hobby of spacemodeling (sport rocketry) in the United States.
It is also the sanctioning body for the NARTREK program.
Tripoli is a non-profit organization dedicated to the advancement and operation of amateur high power rocketry. It members are in the United States and 22 other countries around the world.
This is the site of my home rocket club. They launch monthly near Plant City, Florida.
Rigging your parachutes, parachute blankets, and shock cords requires different knots. It has been a while since I was in the Boy Scouts and this site has any knot you may need.
This is an open-source software package that allows you to design and simulate your rockets. It is a Java program so you will need Java installed on the machine you are running the software on. It is a great program and it is free. An alternative to OpenRocket is RockSim sold by Apogee Components.