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Clubs \Sections and Flying fields
Fox Valley Rocketeers  - Fox Valley Rocketeers - We have a rocketry home for you!
Northern Illinois Rocket Association - NIRA: Home
Launch Crue – Laünch Crüe – National Association of Rocketry Section #519 based in Holland, Indiana (launchcrue.org)
SMAASH - SMASH Model Rocket Club (smashrocketry.org)
MASA - MASA Rocketry - Rockets - Minneapolis, Minnesota (masa-rocketry.org)

Rocketry Related

National Association of Rocketry
AMA Museum at Muncie, IN
The American Rocket Challenge 
WeatherUnderground – Burlington, WI Weather Conditions
Richard Bong State Recreation Area

NRC or NAR competition suppliers
Aerospace Specialty Products - Model Rocket Kits, Components & Supplies
Apogee Components - Model Rockets, Resources & Components
Balsa Machining Service
Balsa USA
Erockets.biz – The World's Largest Selection of Flying Model Rocket Kits & Parts
Micro Mark – Precision Tools & More