Here are some foto's of my old snowblower that I added wings to.
The wings do help feed extra snow into the fan intake and, I think, make the blower more efficient. They work very well when there is deeper snow - about 12 inches or more. I increased my effective width by four inches each side to go from 73" to 81". The wings are 33" high, 12" wide with a 4 " offset at 45 degrees.
My wings were made out of 12 gauge metal (I think) and are a few inches longer than the height of the blower casing - to act as a drift breaker. I added larger skids to the bottom to prevent the blower "digging in" when in use - they work well for the intended purpose.
To prevent any casing distortion from the wing mounting, I added pieces of 2" x 1/4" mild steel flat bar between the wing and casing - secured with three bolts. This seems to distribute any load and with one wing failure ( bent out of shape) from hitting an immoveable object, so far no signs of auger bearing/casing distortion.
The deeper the snow, the better the blower works. I would like a new 84" blower but cannot justify the cost, so things will just have to do for now (retired).
The foto shows cleaing about 5" of snow only - with it deeper it goes much further - increasing the PTO speed from 540 to 720 makes a big difference as well, though not something I like to do for obvious reasons.
Hope this helps.
Jim
