It's a trailing cone for calibrating static pressure. Used in flight
testing, for RVSM certification, etc.

On 14 Mar 2019 18:19:38 -0700, Miloch
wrote:

I've seen several pics of the Max 7 with something attached to the tail...so far
I can't find any explanation.

...any reasonable guesses?...I'm leading to an antenna of some kind but for what
purpose...


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