So I can add a logbook entry to my org file with C-c C-z and it goes into a
logbook drawer on that file. Is there a way to associate that entry with an
external file? That is, can I have all logbook entries automatically be
written to, say, a logbook.org file. Or, is there a quick way to simply
tangle out all logbook entries?

Isn't there something similar with a notes.org file?

LB