This article is from the Model Rockets FAQ, by Wolfram von Kiparski with numerous contributions by others.
Tripoli altititude competition records can be viewed using your web browser at:
http://www.tripoli.org/
Buzzing through the Tripoli web site, it appears that the organization
has been refining the events to include Open, Hybrid, Restricted and
Large Rocket altitude categories. Gone are the duration (makes good
sense) and cluster events.
 
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