Payload Altitude

« Altitude Competition
22.1 Scope
Payload comprises seven events open to model rockets that carry one or more standard NAR payloads of given mass and dimensions to as high an altitude as possible and to recover the payload. The standard NAR payload is intended to represent an instrument package whose dimensions and mass cannot be modified, but must be accepted as a design constraint.
22.2 Staging
If the entry is staged, the payload(s) must be totally enclosed in the uppermost stage of the entry.
22.3 Payload Specifications
The standard NAR payload is a sealed non-metallic cylinder containing fine sand, with a mass of no less than 28.0 grams. This cylinder must be a minimum of 17.0 millimeters in diameter, and a minimum of 60.0 millimeters in length. No holes may be drilled into it, no changes made in its shape, and no material may be affixed to it.
22.4 Enclosed Payloads
The standard NAR payload(s) carried in an entry –

  • must be totally enclosed and contained within the entry,
  • must not separate from the entry in flight
  • and must be removable from the entry
22.5 Return
Following the flight, the competitor must present his/her entry as recovered and, in the presence of an official, must remove the payload(s). If the official cannot examine the payload(s), the entry must be disqualified. Rule 10.4 – Return of Inaccessible Models does not apply. If the competitor removes the payload(s) in the absence of officials, the entry must be disqualified. The official may require that the payload(s) be rechecked and must disqualify the entry if it no longer complies with Rule 22.3 – Payload Specifications.
22.6 Classes
This event is divided into classes based upon the permissible total impulse of the motor(s). The following classes of Payload are established:

Motor Class Payloads Carried
A 1
B 1
C 1
D 1
E 2
F 3
G 4
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