I was treasurer at a 100+ member club using Quick Books. It was fairly
good and set up as follows:
Members = Customers.
Glider rentals = products = xx Minutes of G103, xx minutes of
2-33, etc.
Tows = products = xx feet of Pawnee tow, xx feet of Scout tow, etc.
Winch launch = product.
They also track instructor flights, and tons of extra info.
Dues are automatic recurring monthly charges.
It sends bills via email in PDF format.
It creates summaries that look good at the club meetings.
If you get QB or some other s/w, I'm sure you can find more detailed
help in RAS. Heck maybe treasurers could form their own group and
share ideas.