No accurate recollections but all I know is that every grass part of Lands End becomes water logged in the winter months & they have to reduce the serviceable areas inc runways/parking quite considerably.
It will be interesting to see what improvements they need to make to the airfield in order to operate the S61, however it seems that apart from the skybus there will be less trafic due to the elimination of GA so not sure where the funding will come from!