The tightly manned UKSARF (RN/RAF/CG) is watchon-stopon, all the time.
How you dare to compare the deployment ratio of a warship against the SAR force leaves me speechless! The average SARF guy/girl almost certainly lives within 30 mins of their home and is probably present in that home at least every other day when on duty and every day when not on 1st call (I've done it).
My neighbour's son is in the RN on a running warship and he has hardly been at home all year - an 8 month deployment, short leave and maintenance on return (6 weeks), then back to sea for 5 weeks exercises with France etc, off to Libya on the gun-line, return and now working up for the next 6 monther at Christmas. He loves it - mainly because he is saving loads of dosh for a house and the ship's morale is sky high.
EASY, If a survey was done I would be interested to know what percentage of staff at Lossie have spent their career to the N of Aviemore or in the Lincoln clutch, or at Benson/Odiham.