From the AIA:
The 2013 Team America Rocketry Challenge offers a new challenge to the student teams. Here are some of the highlights for the 2013 contest:
1.Target altitude of 750 feet
2.Duration of flight should be between 48-50 seconds
3.Payload is one raw egg placed horizontally
4.External diameter of rocket must be no less than 60 millimeters
5.Recovery by a 15 inch diameter parachute
6.Gross liftoff weight of no more than 650 grams
7.Rocket motor size F, total impulse limit of 80 N-sec
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