Mar:
We do all our own flight permits, Visas where needed, pay all our own navagation fees, airport fees and on and on and on........Dealing with bureaucracies is the most difficult part of international ferry flying.
But hey, I'd far rather pay some poor schmuck in a third world country bribe money to get things done than deal with some of the self serving pr.cks we have here in our country.
Yes we do all our own maintenance and err on the side of safety when getting these things ready for any long over water flight.
As to point of no return and all that stuff it really is not all that complicated. We were five thousand pounds over gross the last time we left Dakar ( we get overweight flight permits. ) so what we were looking at was the first six hours we would have had a drift down on one engine, after that it would have flown on one.
We always depart at dawn in case we lose an engine we at least can see the ocean for the landing.
The PNR is really easy with several GPS's running. And we always have our Sat phone in case something really goes wrong.
What really makes it interesting is the ITCZ weather without radar, that sometimes gives us some moments when we do not think about sex.
America West:
I was chief pilot for a Canadian Airline operating Twin Otters on floats IFR, we had center stored flight plans and did our arrivals using Victoria and Vancouver airport approach aids, then when visual just landed on the water.
Timebuilder:
Yes we could in an emergency land on the ocean and at least survive to get in our raft and survival suits, hell on a good day we could land and just fish until someone came to rescue us.
Chuck