I am working on making a CAD model for BTR-80, starting from my model of the BTR-70. As is often the case with trying to work on variants, I'm struggling a bit to synch up the technical drawings and the model.
In this case – as usual – the measurements you can find are little help, since they have such a wide margin for error. The BTR-80 is consistently listed as being 0.1m wider, though it is difficult to see why that is.
My understanding is that the BTR-80 (hull) is basically the BTR-70 hull, only with the rear section modified (i.e. the centre chamfer taken out and the rear squared off and so on).
(Obviously, the turret and the external details are different.)
Is this correct, or is the BTR-80 actually a slightly different (but almost indistinguishable to my eye on pictures and photos) shape?
The internet is sadly lacking any good side-by-side photos for a good comparison.
Can anyone shed any light on the subject?
I.e. the basic shape and geometry of the hull.