Hi Walter,
I stand corrected RACAL produced an analysis, not a simulation. Still does not produce any "facts" though. Same goes for the Boeing analysis.
I do know that the TANS fed the HSI but have never seen it in action on the Chinook and can no longer remember how it worked on my own types.
The TANS display unit, whether in Along / Across or Bearing / Distance would have been giving precise ranging information.
The numbers on the TANS are large and clear. If the crew had any doubts about HSI interpretation, they could / would simply look at these figures.
Last edited by dalek; 24th Aug 2010 at 07:23.