Typical glider depreciation?

On Aug 7, 8:57*pm, David Reitter wrote:
What is a typical depreciation value for gliders that clubs/owners use
in accounting for the cost of gliders? * Do you assume linear
depreciation?
(This is a difficult value to estimate, given the lack of easily
available data for second-hand glider prices throughout a reasonable
time span.)

The info is available.

For example, if you are interested in a Std. Libelle 201, go to the
Soaring Mag archives look in the classifieds, and see what a
particular sailplane was selling for in the 70's, 80's, 90's, etc and
you will get the general idea that will help you. The sailplanes
condition also plays into the equation.

Mike