NavList:

JK,

So you say the TRF diagram is not a special case. And you give a general interpretation to your diagram. I concede that your diagram is not a special case in your interpretation.

However the way I was taught to navigate your process is very unconventional.
DR plots are not reinitialized at EPs. Only Fixes and RFixes. So I see the first LOP as thru a DR point that is not general in my world but in yours with different DR plotting conventions it is. Never mind that is not the problem with your reasoning that makes RFixes unreasonable in your mind.

You object to the fact that a whole range of displacements( EP to DR2 ) all yield the same advanced LOP which together with the later LOP2 yield a single RFix. Surely LOP2 depends on which of the above estimated tracks you took else why try and use it to find out where you are? You have ignored the fact that LOP2 will change dependent on where you are. The problem is not with advancing the LOP1 it is your ignoring the dependence in LOP2 of your position.

Dave F
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