posted 9 months ago
Besides Steve's suggestion of a stone boat (or even an old truck hood - a Nansen sledge or Siglin sled might also be worth a look), some of the logging appliances used for small tractors might also be helpful.
The original post in this thread dealt with moving timbers. A log arch (and possibly a dolly to support the opposite end for longer stems), or a slip tongue arch would help. There was a nice over center toggle action dolly available for the Jonsered Iron Horse small scale tracked mechanical forwarder; I know I have some cribbed photos of it, somewhere. A slip tongue arch will keep the butts of the logs out of the dirt when there is draft on the tongue, but if the load tries to over run the team on a descent, the logs are dropped to the roadway, which helps to prevent accidents.
Historically, in the northwoods, most logging at scale was done in winter, with two-bob sleighs for the longer hauls with big loads, and sometimes a single bob or go devil to twitch stuff out to the log deck where the two bob sleigh would often be loaded by parbuckling over the side. Sometimes mechanical log booms were used to make up large loads. The main haul roads were iced, and the sleigh runners usually had a cast iron wear shoe on the bottom, which acted somewhat like a skate blade. There were various profiles - half moccasin, full moccasin, etc. Some tracked better on side hills, others better supported heavier loads, etc. And, as usual, opinions varied. Two bob sleighs usually had chain cross reaches, so the runners at both ends counter steered to stay in the same track.
Any of this could be adapted or recapitulated.
I have good scale working drawings of two bob sleighs in digital format (TIFF or PDF, maybe both). I've been keeping my eyes peeled for a more-or-less complete set of sleigh hardware, even if the wooden structure is a bit punky. These things do show up on Craigslist or FB Marketplace from time to time in my neck of the woods.
Trains of two bob sleighs were also used on Canadian ice roads, before Ice Road Truckers was a thing. Usually, track-laying tractors (caterpillars) were the motive power. Try Googling "King of Obsolete" for someone who is still doing this, though mostly for tourists, at this point.
"Ah, but a man's reach should exceed his grasp,
Or what's a heaven for?"
Andrea del Sarto by Robert Browning