FF - there would be absolutely no problem landing with an engine out at BHD, but the recommended flap setting for landing under such circumstances would be 15° to satisfy go-around performance, and the B4 states that flap 35° is mandatory on runways of less than 1800m. What this means, as I said before, is that operating in accordance with the B4 (and not reality) means that with an engine out you could not land at BHD. As I also said before, the 1800m ruling is nothing to do with actual performance, it's just that someone senior on the fleet thought it was a good idea at the time, so it was written into the B4.