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A comment on SpaceX: “Close, but no cigar. This time”. Parent comment

Re:SpaceX: “Close, but no cigar. This time” by Florin_Andrei on Friday January 16, 2015 @02:43PM (#8901175)
Hm, if I was the guy designing the control loop on that thing (not gonna happen in real world, but bear with me), I would definitely take into account the fins position - the real position, not the one I want them to be in.

Not that it would have helped anyway in this case.

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Re:SpaceX: “Close, but no cigar. This time” by Symmetry on Friday January 16, 2015 @05:43PM (#8902234)
I suspect that the code takes the fin's starting position into account in each planning cycle but also assumes that the fin will move as directed in the future.
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Re:SpaceX: “Close, but no cigar. This time” by Florin_Andrei on Friday January 16, 2015 @09:16PM (#8903070)
No rotary encoders on those things?
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