This article is from the Model Rockets FAQ, by Wolfram von Kiparski with numerous contributions by others.
Rocket: Frank Kosdon metal rocket
Date: LDRS XII
Where: Argonia, Kansas
When: 15 August 1993
Power: Kosdon non-certified O10000 (that's O-10,000)
Materials: All metal rocket with custom manufactured motor
Altitude: 35,407 feet AGL; closed optical track
(Notes: This is a special-case flight. The rocket does not follow the
rules for high power because metallic rockets are expressly
prohibited by both the NAR and Tripoli. It also uses a custom made
motor. The motor was made by a manufacturer with other high power
motors certified by Tripoli. It was pre-manufactured and solid
propellant, within the total NS limits of high power consumer
rockets.
Tripoli does not recognize this flight, or any other flight, for
altitude record purposes unless a successful deployment of the
recovery system is observed or the rocket can be recovered to show
successful recovery system deployment.
 
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