Wait a minute; what about taking into account the movement of land-based aerodromes too... do to plate tectonics of course?
OK sorry to be a tosser. I would think that the relatively slow speed (very very very rarely more than 35 knots if memory serves from my time on them and then that was only to go back to the top of the box to steam back into the wind for a handy 12 knot headwind across the deck) makes this a bit of a moot point. But while we're at it, if you really were in the !!!! and needed to 'divert' to the ship they could of course steam towards you or even send a tanker out to top up so that you could make it wherever you needed to go.
Interesting question...
Just head back to them and request the choppers to meet you. Once you're gliding at 3000 fpm eject and get ready to give some answers trying your best not to drip sea water on the skippers deck
FRQ CB