[Proj] Hooijberg's algorithm needed

[Achim Hasenmueller]

Hi,

I'm interested in finding the relationship between scale factors of LCC maps
(aviation) that are designed so they can be put next to each other and
therefore
have a different scale factor each.

The maps cover parts of Europe with standard parallels at 40°N and 52°N. The
scale factor differs slightly and I am interested in a formula to calculate
it.
I have found this in a forum message from 2007:

"Find a chart that gives the true scale at 54ºN and divide that into
500,000.
This is the scale factor. For 51N the scale factor is 500/515=0.9709, =
1/1.03
Running Hooijberg's algorith for LCC, 2 parallels, the scale factor at
54N=0.97005."

Unfortunately a search for Hooijberg's algorithm was not successful. Any
pointers appreciated!

Thanks!
Achim
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