HP-71B Software for navigation

[Erwin]

(05-10-2019 11:31 AM)Erwin Wrote:  Till now I spent many hours to investigate the program. It has some other faults in the original program too - calculating mixed navigation, great circle navigation all ends in errors (about data type i.e.).
There are no other inputs from the community, it's a pity cause I love my HP71b for all my calculations and the program seems to be a "all in one" - but I stop my trying on this program cause for me it is to time consuming to do "reverse engineering" of the program. Additionally I couldn't find out the syntax for the ephemerides program to update it to the actual data.
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regards
Erwin

The interpolator for ephemerides within the program is running with correct results but with wrong description ... it ask with the same timestamp but should present the rounded hour before (that is correct) and the rounded hour after the given time (this is wrong in the display. So it ist too buggy in my point of view. Others are "bad variables" kept in the RAM from previous calculations so I have to fill in a new line with "DESTROY ALL"
Cause I don't want to program the formulas I need in August on my sailing turn with friends I think to give the 41C Navigation PAC with my HP41 translator PAC in my HP71 a try. But I failed to install this with my PILBOX, it is a MOD-File from the HP41-DVD. Or is this not possible cause it is not a regular format on the HP71B?
Are there any documentation about how to manage this?