From: Kevin Johnson [zog43editor@yahoo.com] Sent: Friday, November 19, 2004 8:57 AM To: Ekman, Bob Subject: RE: Explorer Post Rocketry Project Here are some online resources that they may find helpful: www.info-central.org lots of general rocketry information, tends to focus on the higher power side of things. www.estesrockets.com/Rocket_Library1046.html has a collection of introductory documents and technical information about rockets www.apogeerockets.com great rocketry vendor, sells RockSim software, parts, kits. Laso has free information and a rocketry newsletter on teh site. www.balsamachining.com company that sells rocket building materials. Will custuom turn nose cones and transitions, make centering rings, fins and other parts. Very good vendor with great service. www.rocketryforum.com a posting board for all sorts of rocktry information. Searching the archives and posting questions will yeild lots of information. groups.yahoo.com/group/NARTARC a yahoo group set up by the TARC to provide a place for competitors to ask questions. Has an archive of questions asked for the last 2 contests. www.wrasp.com site for a free rocket simulation program. Not quite as powerful as RockSim, but will give enough information to allow the kids to do the math to find descent rates and calculate time aloft. myweb.cableone.net/cjcrowell/VCPMAIN.htm Virtual Center of Pressure software. Another free simulation software. Hope this helps. Kevin