Having compared images it clearly has some connection!!!! However, there are differences which, as far as I can see, make my image different an distinguishable from a Petrel/Super Petrel. RR
Edit: I'm not sure what to do. The machine I have is not marked as any of te above but clearly it is related. There are various differences but I think it is so close.
So, I will declare it to ....... Skytrain10, as he came up with Petrel first. I have it as the Naval Aircraft Experimental NAX-01 of the Thai Navy! I found little reference to it on the net but I did get this picture....
