Dual Egg Lofting Duration

« Duration Competition
38.1 Scope
Dual Egg Lofting Duration comprises five events open to single-stage model rockets that carry as a totally enclosed payload, two raw eggs intended to simulate carrying two astronauts. The purpose of this competition is to achieve the longest flight duration and recover the payload without damage.
38.2 Eggs
Eggs must be raw and have a mass of not less than 57 grams and not more than 63 grams; and measuring no more than 45 millimeters in diameter. Prior to flight each egg must be uniquely marked and the marks must be recorded on the competitor’s flight card. A competitor shall not be required to use one or more eggs that have been previously lofted by another competitor. No material may be affixed to the egg(s) (e.g., glue or tape).
38.3 Return
Following the flight, the competitor must present his/her entry as recovered and, in the presence of an official, must remove the eggs. If the shell of the egg(s) is broken or cracked, the entry must be disqualified. If the official cannot examine the eggs, or the competitor removes the eggs in the absence of officials, or breaks the eggs in the process of removing them, the entry must be disqualified. Any entry that is caught or cushioned prior to landing must be disqualified. Rule 10.4 – Return of Inaccessible Models does not apply.
38.4 Classes
This event is divided into five classes based on the permissible total impulse of the motor(s). The following classes of Dual Egg Lofting Duration are established.

Motor Class
38.5 Scoring
Dual Egg Lofting Duration must be scored as follows: The competitor whose model achieves the longest duration on a single flight is the winner.