Boost Glider Duration rules

« Duration Events

36.1 Scope

Boost Glider Duration Competition comprises of eleven events open to any model rocket, one portion of which returns to the ground in stable, gliding flight supported by aerodynamic lifting surfaces which sustain that portion against gravity. If the entry is staged, the gliding portion must be part of the uppermost stage, and must not be deployed until that stage has burned out. The entry may separate into multiple pieces; only the gliding portion is timed and only the timed gliding portion needs to be returned to satisfy Rule 15.10. Models whose gliding surfaces are made of flexible materials (e.g., plastic film or cloth) are prohibited from this event. The purpose of this competition is to achieve the longest flight duration time.

36.2 Disqualifications

An entry that descends with parachute and/or streamer recovery device(s) permanently attached to the gliding portion of the model shall be disqualified. However, other portions of an entry may deploy parachutes and/or streamers for recovery purposes.

If the glider entry accidentally rips the motor pod’s recovery streamer and the streamer attaches itself to the glider, the entry may be qualified depending on the RSO ruling that the entry still glided and was not disqualified for other reasons.

36.3 Classes

This competition is divided into classes based on the permissible total impulse of the motor(s). The following classes of Boost Glider Duration Competition are established:

Motor Class Weighting Factor Multi-Round Maximum
1/8A 19 30 sec
1/4A 18 45 sec
1/2A 17 90 sec
A 18 120 sec
B 19 180 sec
C 20 240 sec
D 22 270 sec
E 23 300 sec
F 25 300 sec
G 26 300 sec