Undeniably it will be a great experience for both yourself and your son, however whenever I see these events start off, I always wonder if the money it costs to perform the act itself would be better placed in the hands of the charity it is being done for.
I realise you are aiming to raise £1 mill for what is a very good cause, I support
CRY myself, are you able to tell us how much the whole event will cost?
Aircraft £250,000 (Would you be buying one anyway?)
Plane trip £250
Airfare from Chile to Easter Island and back costs approximately $800 US.
30,000 Nm @ Cruise speed:160 kt = 188 hrs
Fuel consumption: 28 - 30 lts/hr @ 65% throttle
188 hours = 5,640 litres @ £2.00 litre = £11,280
My point being, assuming the aircraft is being bought especially to do this, already over a quarter of the amount that you intend to raise will be spent doing the trip, I wonder how close it will finally get to the total target....