What A/C are you talking about
707 ?
The only two seats 208 existing are the Cargomaster and even that can be reduced to one with the deletion of the RHS (not common though).
As for twenty seats, I doubt it. We had an exemption from the CAA to carry 16 Skydivers but of course there was no seats hence the possibility to carry more "PAX".
What do you mean an hour from the Isle of Wight to Alderney ??
The TAS is about 174 at 10000 feet with a fuel flow of 370 PPH.
Climb to FL180 and above you get a FF of 260-280 PPH and try even higher at FL240 to read as little as 264 Pounds Per hour.
Basically with 2000 Pounds of fuel, you could go on for 9 and half hours before running out of steam.
can handle our wheather all right
Excuse me but the Caravan has been operating in N Canada and Alaska for a while so I doubt the UK Wx would have any significant impact on its performance.
No doubt you are not talking about the right A/C type which you must have confused with the Cessna Caravan (not the one you have behind you car
)