- 23.1
Scope
- Cluster Altitude (CA) is comprised of five events open to single staged model rockets.
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- 23.2
Purpose
- The purpose of this event is to foster the understanding and execution of a
fundamental model rocket skill: clustering. The purpose of the competition is to achieve the highest altitude.
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- 23.3
Retained Motors
- All motor cases are to be retained in the model. Following an official flight, a contestant must present
his/her model as recovered to a contest official for verification of motor casing retention or the flight will
be disqualified.
-
- 23.4
Winner
- The person achieving the highest altitude is the winner.
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- 23.5
Classes
- The following five classes of Cluster Altitude are established:
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-
| Class Name | Weighting Factor |
| 1/8A x 2 Motor CA | 12 |
| 1/4A x 2 Motor CA | 12 |
| 1/2A x 3 Motor CA | 14 |
| A x 4 Motor CA | 16 |
| B x 5 Motor CA | 18 |
| C x 6 Motor CA | 20
|
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- 23.6
Simultaneous Ignition
- All motors of Cluster Altitude event models shall be ignited on or instantaneously after the model's first motion
(i.e., "Simultaneous Ignition").
Partial cluster ignition shall be deemed a qualified flight unless disqualified for other safety reasons by the RSO.
Unignited motors carried aloft shall be retained within the model.
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- 23.7
Partial Ignition
- Models that do not ignite all motors in flight will be considered official flights. An entry which fails to ignite
all of its motors is considered a qualified flight unless it is unsafe (Rule 11.1),
experiences a catastrophic failure (Rule 11.5),
or the track is lost (Rule 14.9).
-
- 24 Reserved for future events
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