Here are a few links with useful and/or interesting information.
Tips (updated 10-17-2022)
eCalc can calculate just about anything you want to know about your airplane.
Conversion calculator. Formulas and calculators for just about everything.
Flying Sites has some very interesting information. The Wing Loading Calculator above is one example. Check out their Downloads Page, Top Tips, and How To.
LiPo battery information at rcgroups.com
On Line Magazines
http://www.modelflying.co.uk/ Great articles and they are printable for your files.
How To
How to sheet foam wings, a wing sheeting tutorial by Terry Brox
A long and detailed paper on how to design your RC model. Introduction to Radio Control Model Aircraft Design and Designing Radio Control Model Aircraft
CAD/Design Information
Three view drawings of over 300 full scale airplanes.
Other Clubs Web Sites
Tri-Valley RC Modelers Club
Charles River Radio Controllers
Greater Southwest Aero Modelers