The time for a piston is almost over.
Taxi/charter operation so requires twin engines
Sorry, where it is written?
Except for night flight, I knew the possibility of commercial operation also by using single turbo prop. Almost everywhere in word.
Then, I thought a PC12.
The single turbine running cost is cheaper than any other. Especially if you compare those for a PA31. I knew that it likes AVGAS so much.
Our company were enquiring for a diesel engine for a C404.
The full installation for each engine is gonna cost something like 115K Euro… forget it !!!
Cheers,
M.