Visual manoeuvring with prescribed track
I'm grappling with the issue of the go-around from a visual manoeuvring (circling) approach with prescribed track.
The standard (ICAO Doc 8168) missed approach procedure from one of these beasts is to carry out a 180 turn back on to the downwind leg, starting after passing the end of the runway you're landing on. This is to position you for a second attempt at a VM(C) approach. However clearly to do this you'd need to (a) be able to see when you've passed the end of the runway and (b) maintain visual reference so you can continue to fly a second attempt at the approach. This means you would not generally want to climb above the circling MDA on the go-around. In other words this is a visual go-around.
Then there's the go-around if you lose visual reference during the VM(C) approach. It seems to me that what you do in these circumstances depends on where you are in the approach. If you're anywhere between the start of the procedure and the end of the downwind leg, as I understand it you'd then manoeuvre to fly the MAP for the runway to which you made the instrument approach in the first place - usually involving an initial turn towards the airfield then pick up the missed approach track.
But if you've made the turn from downwind on to final, and started descent from MDA, then lose vis ref, what do you do? Climb straight ahead to MDA then turn 180 to pick up the missed approach for the instrument runway, or what?
Any tips gratefully received.
NS