I posted earlier very directly;
Yes.
Mayday and 7700.
No question about it in a twin.
Is there any if's buts or maybe's there?
NO! - for a very good reason - When your engine stops, you know the drills and you will have enough to work out without trying to disect the situation and thinking up what R/T you are going to use when the time comes.
Mayday at the appropriate time every time.
Even if you do not declare a MAYDAY, UK ATC are going to treat you as if you had.........because everyone knows that an engine failure in a twin
is an emergency
The problem with getting this across is highlighted in one word from HWD's post above
Panic. Can someone please explain the link between Mayday and Panic?
Regards,
DFC