- 39.1 Scope
- Superroc Duration comprises ten events open to single-stage model rockets whose body length is no less than the minimum specified in 39.5 for the motor class of the event. The purpose of this competition is to achieve the longest flight with the longest possible rocket, while avoiding structural failure of the airframe.
- 39.2 Structural Failure
- An entry that separates, folds, or has structural failure prior to ejection must be disqualified.
- 39.3 Safety
- Entries must comply with the provisions of Rule 1.2 – Model Rocket.
- 39.4 Scoring
- Superroc Duration must be scored as follows: the length of the entry to the nearest centimeter as measured from the tip of the nose cone to the end of the motor nozzle, up to the maximum length for that category, must be awarded as static points. If the entry has more than one motor, the length must be measured to the motor nozzle closest to the tip of the nose cone. No additional points are awarded for any length beyond the maximum. The achieved duration of the entry in seconds must be awarded as flight points. The static points and flight points obtained must be multiplied to determine the score. The competitor achieving the highest score must be declared the winner. When posting, printing, or maintaining contest results or performance records, an entry’s time in seconds must be shown with its composite score.
- 39.5 Classes
- This event is divided into classes based on the permissible total impulse of the motor(s). The following classes of Superroc Duration are established:
Motor Class Minimum Length (cm) Maximum Length (cm) 1/8A 12 25 1/4A 25 50 1/2A 50 100 A 75 150 B 100 200 C 125 250 D 150 300 E 175 350 F 200 400 G 225 450