- 38.1 Scope
-
Flex-Wing Boost Glider Duration Competition comprises ten events open to any model rocket, one portion of which returns
to the ground in stable, gliding flight supported by flexible 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. The purpose of this competition is to achieve the longest flight
duration time.
- 38.2 Disqualification
-
Any entry that descends with parachute and/or streamer recovery device(s) 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.
- 38.3 Classes
-
This competition is divided into classes based on the permissible total impulse of the motor(s). The following classes of
Flex-Wing 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 |
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