Regrettably I do not have a full collection of the old ASD and wish I did! I remember that the old Gliding Club at which my late Father used to instruct recieved the Digest regularly and I always read them.
Like
Compressor Stall I barely spend a few minutes reading the current mag. Generally turn to the IFR quiz and do that.
I'm no expert on copyright but I thought that Commonweath Govt copyright on published materials expired after 25 years. If that is correct, then all the old Digests could be scanned and legally made available on the Internet or on DVD.
Any interest?
I'd be in that!