From what my dealer said it sounded like it will be similar to Erskine front-mount unit with power transferred from the rear - can't remember if he said hydraulic via PTO pump or mechanical, I think hydraulic. I could be wrong!
The appeal of a rear pull unit is you can keep FEL utility and remove unit quickly from rear hitch. A front unit is more or less permanent for the winter. We have a long circular road into our cottage and a rear pull has a lot of appeal. From what I've read driving over the snow makes little difference and if a huge dump you can push out of the way with FEL. I will check out the Normand units. Price should be way less than front mounted units as really very similar to a traditional rear facing unit.
Lungdoc,
That's not what I found. Driving over the snow packs it down then you have ice for one. Also my tractor takes about 15 minutes if that, to remove the blower and it's tool less.
I've run my 600 foot driveway with an uphill run without chains for years and no problems and that's with 4 foot drifts. If I had the rear blower I'll bet I'd need them.
I don't think you get ice in the 1-5 seconds between wheels passing over and blower reaching it...question is whether it's packed enough that blower can't remove. Lots of professional blower operators in Quebec would say no or they presumably wouldn't use that type of system. Good to know front blower change is relatively painless but still a big hassle if you include reinstall of FEL versus hooknig a quick-connect rear implement on. I need chains anyway (which worked like a charm) as some steep areas and R4's.
You get ice because the tires pack the snow down and the blower rides over it.
I run 4WD and it's sweet. Also I leave the blower on most of the winter as there isn't much loader work to do then. We scrape the barn in the fall or early summer. Once the snow hits the ground freezes and we only take out the BH or FEL to bury a dead animal which fortunately doesn't happen that often.
To each his own but I'd never change the front blower for a rear one and we get a lot of snow here that drifts over in an hour.
I guess it would depend to the degree to which the scraping surface of the blower will float over any packed snow versus being pressed down enough (on the shoes) to continue to cut through it to a set height. The shoes themselves would be set outside the wheel tracks.
Not disputing that a front blower is a great tool. I think though that for my needs and for the cost this may be superior to a traditional rear facing 3-point blower.
Nice video but guess what? You don't see them on a gravel driveway. You can't scrape in the forward direction like they are with a gravel roadway. You have to set your shoes a couple of inches above the roadway or you'll be shearing pins every ten feet as you make your lawn your new driveway from all the stones you'll throw on it!