//all speed of units - metres per secound
All Winged units while flying - 7 
why moving on ground - 4.2

All whelled units - 5
All tracked units - 4.2
All legged units - 3.8
Subber - 3.8
Thumber, Recycler, Shielder - 2,5
The best unit - 2,5 (i didn't check it)