John:
The corkscrew in the smoke trail says it was coning. If the telemetry
shows absolutely no sinusoidal pitch and yaw then an explanation for the
failure of the accelerometers to detect it would be my next question.
Bill
On Fri, Nov 19, 2021 at 6:15 PM John DeMar <jsdemar@xxxxxxxxx> wrote:
The fins were canted to induce ~6Hz spin at burnout. The telemetry data
didn't show significant pitch/raw movement, at least at the forward end
where the electronics were positioned. The overall construction of the
rocket was quite stout, but the marman clamp apparently failed. So, no
recovery.
-John DeMar
Las Cruces, NM
From: William Claybaugh <wclaybaugh2@xxxxxxxxx>
Date: Fri, 19 Nov 2021 11:23:03 -0700
Subject: [AR] Fwd: Evolution Space | Too Busy Chasing Stars Mission | S
Motor
The attached video is of a launch at FAR this past weekend.
In keeping with recent discussion, note that the smoke trail appears to
indicate coning of the vehicle over the last third of the boost. While
the
video alone does not allow us to determine whether that coning was due to
an aerodynamic or a mass balance asymmetry, we can observe that the
vehicle
was sufficiently strongly built to survive the side forces it evidently
suffered.
Bill
https://m.youtube.com/watch?v=eRpT0CLbC0Y&feature=youtu.be
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