Jim, I am signing up as I type this message. Would you like me to put you down as the referrer to this site? if so, can you please send me your username only? If not, I will just complete the process. Thanks. From: Jim Wold Sent: Thursday, November 15, 2012 5:28 PM To: roc-chat@xxxxxxxxxxxxx Subject: [roc-chat] Re: Instructional/Educational Material Have you been to http://www.rocketryforum.com/ yet? Jim Wold From: Chris Coffee Sent: Thursday, November 15, 2012 3:38 PM To: roc-chat@xxxxxxxxxxxxx Subject: [roc-chat] Re: Instructional/Educational Material Hello All, I have asked this question to two different people, and in line with human nature, got two different answers...LOL! So I put this out to everyone here in hopes that I can reap the benefits of a "majority rules" line of responses. I am looking for books, web pages, videos, etc. that will teach us most everything we need to know about model rocketry. I have found plenty of videos of folks building and launching rockets, but not any that have gone in depth into the details of the hobby. Examples would be Calculating COG & COP, Motor Designations/Properties/Characteristics, How to Determine Stability, etc. If anyone can please point us in the right direction to find this type of material, we would be very thankful. We have been told both that those types of materials do not exist (have to learn by trial & error), which I don’t really see being accurate. And we have been told that they DO exist BUT not sure where to locate them.