Richard Nakka's Experimental Rocketry Web Site
www.nakka-rocketry.net/
Richard Nakka's rocketry site. Scientific testing on propellant, nozzle's, casing, etc. A whole cache of material that I found very useful.
Recrystallized Rocketry
www.jamesyawn.com/
Jimmy Yawn's page has a wealth of information on fuel composition and their static tests, among other things you will find useful.
Romanian amateur's rocketry site. I found one of the NE555 timer circuit on this site.
Designing Around Erosion
http://www.rimworld.com/hpr/technical/erosive.htmlbackup page:
