A and C,
I am sure that others will add more but this is enough to kill flying clubs in this time of economic troubles when most of the income happens in the summer months but I know of one airfield that estimates the loss of £0.5M business over the restricted airspace period.
I thought efforts to mount a Judicial Review of the airspace were stalling because of lack of interest or commitment to support it financially from potentially affected companies?
I thought I read from one of the instigators that only individuals seemed willing to pledge funds.