i know a bit about the old saws; i still have one of the old two man saws with gear drive.
I was asking about modern methods of working a big tree...or is it the case that those trees are never encountered anymore?
Sure, twice a 5' bar is 10'. But you cannot cut up a log on the ground with a 1/2 diameter bar length, unless you sacrifice a big percentage of the wood you were trying to harvest.
...or unless you can roll the log over to finish your cuts.
lmao. .