Oh sure, you can
go on just one engine
, of couse. What i'm saying is that it's not a 'normal' thing to do. The main point of the question was whether it would be worth doing to save fuel
, etc. With one engine it will have to work harder and you'll have more drag in the water
due to the rudder
being almost hard over to keep in the straight line so i can't see any advantage.
After all, most twin engine aircraft can safely fly with one engine. But they would never do so by choice for the same reasons. With the price
these days if it was worth it, they'd all be doing it!