Then final assembly where the hot spot is focused on soft plastic tracks on which any of my glues seemed to work. After surfing on military model websites, there really is no miracle solution! Ideally you have to heat the small spikes sticking out. If I could do it on two tracks, the other 4 were from kits not all young and broke the track when the twist was too strong. In these cases, the caterpillars have been dn form by heating near a candle, then glued directly to the wheels with superglue gel enriched cahoutchouc which hangs here a little better than the classic superglue (this tip comes from a military website).

And here's the final result :

Model E

Model F

Model H

H compared to its Product Enterprise cousin

3 sets

And 4 with PE