I see. The main problem is that all of the planes in the pic have the top of the engine cowlingcovered with the prop blades.As a result it is not possible to see if there are the air intakes at the cowling tops. This would be the best detail that could say if these are of the FM-1 or the FM-2 kites. But all of them seem to have the cooling tabs ,even the black 5 with the vertical antenna mast. What is more, the fins+rudders look like of the FM-1 shape. Additionally, there can be noticed the small oblong bulges at the bottom edge of the cooling tab line. The FM-2s did't have them there. Therefore I would say it is very likely these planes are the FM-1s than the FM-2.