Pisces :
Why 17 knots precisely ? Thanks for your answer anyway.
Makman
I know I'm useless, after 2 years, I'm still playing 74%, ( Sunk 80.000 T in this 14th mission today end 41, but I know it counts for nothing ) but I know with all the doc I have, I should do better... I'll get there one day. Some are gifted, some are not, you know...
Anyway, I just meant not to be selfish, that's all. And if I'm not as good as you with math and trigo, at least I'm trying, and try to be usefull for others with what I gather here and there. I know, I am certainly a better archivist than the math guy...
Your beloved archivist. JMV