by Senorjefe
Dont forget that you also have to pay the 1 franc interest on the loan(s). So if you spend the francs from the loan, by say feeding at the end of the round, you may (fairly easily I find) have no francs to pay interest.This ends up giving you a nice boost in Francs for a turn (at the expense of another loan). But you still only pay the 1 Franc interest no matter how many loans you have.
I often have 5 or so near the end when I pay them all off after a good shipping line use.