In article .net,
Paul Folbrecht wrote:

1/13th share in '97 172R. GPS. 2200TT, couple hundred hours on a new
engine.
Buy-in: $3800
Dues: $150/month flat plus $38/hr wet for time.

$3800 *13 = $49,400
$150/month * 12 months = $1800/year * 13 shares = $23,400/year
If this is a club, insurance is going to be maybe $8,000/year.
That leaves $15,400 for maintenance, storage and debt service.
If the GPS is an IFR KLN 94, database updates are $500/year?
How much is set aside for avionics reserve?
How much is set aside for engine reserve?
Will the aircraft be hangared or tie-down?

AOPA has a cost calculator on their website that can give you a
ballpark estimate of operating costs.

Most people who own airplanes learn that they don't want to know what
the costs are.