PPRuNe Forums - View Single Post - Air Asia Indonesia Lost Contact from Surabaya to Singapore
Old 24th Jan 2015, 02:37
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Leightman 957
 
Join Date: Mar 2014
Location: Clinton WA
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Radar spiral/circle

Is there any possibility of narrowing by calculation the number of possible attitude scenarios regarding only the last spiral or circle on the radar track? Time involved is somewhat uncertain, but an estimate (or range of estimates) could be made of the number of returns which would help estimate the total time for the 360. That duration might be compared to the duration of a normal circle flown under control at zero descent rate which would also suggest an expected G rate relative to that turn. Or would adding the range of possible (or known) descent rates during the rotation include so many as to not be useful? Put another way, would radar turn indicated be equally possible in normal flight, stalled rotation, or intentional descending dive (I'm NOT suggesting the last...it is just part of the range possibilities.)
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