Stan Evil thanks for your help. I was thinking along the same lines but I wanted to make sure that I was not barking up the wrong tree.
I have been looking at the AIP plates for my local airfield and I have come across a little problem. The plate is for a VOR/DME arrival and it gives you the OCA for the procedure so getting your MDA is a doddle. However the plate allows you to fly the procedure with no DME and using the stopwatch only... however the OCA value on the plate is for the DME procedure only. My question is what OCA value can I use for a non-DME procedure so that I can arrive at a figure for my MDA???
Any ideas?
Cheers