tvoivozhd---the best measure of work output is energy input. Human muscles put out about one-quarter horsepower, and get tired. Midsized chainsaws put out 3.5 horsepower and don't get tired. So they will outcut James" bucksaw or the much faster two-man crosscut by three or four factors. However, I remember the days on the farm when all the wood was felled by a double-bitted axe (kept sharp) and blocked by a two-man crosscut (kept sharp), until we arranged with a nest-door neighbor to bring us his Model A Ford engine-powered cut-off saw which could do in an hour more than we could cut with a two-man crosscut in half a day. All a matter of energy applied---saws of any kind don't care what is the energy source, just respond proportionally with output according to energy input.
Bowsaws and pulpsaws are excellent firewood tools but now of days, when no one uses them seriously, the toolmakers can get by with offering only crap sawblades.. . . . I researched as best I could and came up with one Swedish company saying its blades were acutally made to cut wood: Sanvik - sold in the US as Bahco. . . . Wow! . . . . 200K people within 40 miles of here and notone saw fit to cut wood to be had.
Good story; good info. Thank you.
Dad taught me to make wood with a crosscut saw. I still remember him saying, "Don't ride it!" As I recall, we had a couple bow saws but they were only used to cut small stuff in a sawhorse. Anything of firewood size was cut with a two-man or one-man crosscut saw, which were hand sharpened with a file as necessary. I have three crosscut saws just in case but am your typical lazy American geezer; I prefer the noisy, smelly, gas-and-oil-guzzling chain saw.
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