After considerable deliberation and debate, FAA regulations permitting FAR Part 135 (pax)single engine IFR operations, were approved subject to the following requirements.
FAA FSAW info on SEIFR ops
and your own set of FAR'S to refer to.
FAA FAR's
For current information regarding this topic in the UK, you might do well to contact Bob Crowe, who will probably know the current status of this project (and will sell you a nice Caravan as well!)
There have been a variety of attempts to operate SEIFR in the UK for freight hauling, under foreign operating certificates. With calculated deliberation and determination the CAA shut them all down.
Modern single engine turbine equipment has a lot to offer the fare paying public. It enables cost effective airfreight on thin routes (Fed-Ex in the US); as well as allowing safe, reliable and cost effective passenger carriage to areas that may not otherwise have access to viable air transportation.
Anyone got any further insight into the UK interpretation on these regulations and future developments?