Missile Works RRC3, User Manual

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Redundant Drogue Event or Post Apogee Payload Deployment
You can activate a redundant pyro event as a backup for your drogue, or activate or deploy a payload after the apogee of
your flight has been reached. Timer intervals are express in 1/10th second values... so for our 5 second example, we’ll use
a value of 50.
Aux Output Control Sequence (OCS) Event ‐ > Timer
Auxiliary Trigger Event Apogee
Auxiliary Comparator Operation n/a
Auxiliary Comparator Value (ACV) n/a
Auxiliary Timer Interval 50 (5.0 seconds)
Auxiliary Output Control Value 1 (1 ‐ Shot)
Elevation Based Payload Deployment or Main Backup Event
The RRC3 can actively monitor altitude after the Apogee or the Main event, and activate the Aux Output when a specific
descent altitude level has been reached. We’ll illustrate a backup Main Event using an assumed 1500 ft AGL Main event ,
and a backup altitude of 1000 ft AGL.
Aux Output Control Sequence (OCS) Event ‐ > Loop Comparator
Auxiliary Trigger Event Main
Auxiliary Comparator Operation Alt <= ACV x 100
Auxiliary Comparator Value (ACV) 10 (1000 ft)
Auxiliary Timer Interval n/a
Auxiliary Output Control Value 1 (1 ‐ Shot)
Landing Locator Beacon
This example allows you to operate a loud piezo or horn with a “pulsed” beep once the rocket has touched down to assist
you in location and recovery operations. The Aux Output will activate the horn for 1 second, pause 5 seconds, then repeat.
Recall that the repeat interval of the Aux Output is the Aux Output Control Value ‐ 1, so for a 5 second repeat, we use a
value of 6.
Aux Output Control Sequence (OCS) Event Only
Auxiliary Trigger Event Landing
Auxiliary Comparator Operation n/a
Auxiliary Comparator Value (ACV) n/a
Auxiliary Timer Interval n/a
Auxiliary Output Control Value 6 (Repeat 5 seconds)
RRC3 Operational and Calculatory Reference Section
This section of the manual covers all the underlying operations and calculation methods employed by the RRC3.
Onboard Flash Data Storage Methods
All pressure data captured by the RRC3 is stored at 20 Hz. While the rocket sits on the pad, it continuously updates the
“floor” (or launch) altitude using a running average method.