carriers in the snow

[Snowtractor]

Its all about ground pressure Boss. If you lower it enough you have awesome floatation, of course you lose tractive ability, so it is a double edge sword.
As for snow tracks, snow will pack up in modern vehicles too. I drove a Cat 340B longstick with 3 foot wide street pads, close like a carrier, and it was 110,000lbs. However it would slide around like a skater once the tracks packed up with snow. It needed ice cleats on it. That said, the tracks would tighten up from the snow and then "BANG" release as the snow compressed so much it exploded out of them. I think the only reason they stayed on was the modern metallergy of the tracks and the hydraulic track tensioners. And I was not driving it around much like a carrier would be.
I also think types of snow make a huge difference, wet, dry ,work hardened, etc.
Sean

PS, I like tea