by AgentR11 » Mon 27 May 2013, 09:52:42
$this->bbcode_second_pass_quote('careinke', 'W')ithout fossil fuels, my transport would most likely be a sailboat or rowboat. Much more energy efficient than land travel and it would get me to wherever I needed to be.
I sail, kayak, and bike. As much as I would like to think water transport is efficient, I've been having a hard time making work when modeled. A sailboat can be more efficient per pound, if you're transporting a few tons of cargo; but there is no way my kayak, even with its deck sitting just a few inches above water line, my butt a few inches below water line, with a long skinny hull, is anywhere near as efficient per mile as the bike. I have thousands of calibrated miles (VO2max via HR proxy) that demonstrate over and over, a bike gets you 1 mile for 50kcal, its as reliable and predictable as you could measure. (that's 2-3 cents worth of sugar or flour) A sailboat can't get you to a location at 3 cents / mile, unless maybe you stole the boat with well maintained rigging. And the rowboat/kayak/canoe over anything other than flat, perfectly still water will exceed 50kcal/mile (depends a lot on hull length, smoothness, etc). Any kind of wind put my monitor in the 100-200 kcal/mile range. (not to mention simple speed, at 50kcal/mile I can manage about 15mph avg on the bike; the kayak's best speed is about 4-5mph; and a 26ft sailboat's hull speed is about 6.5 kts (7.5mph). So there is clearly a speed advantage to the bike as well)
I do *like* the sailboat conceptually, but I have serious doubts about being able to feed it, fiberglass, lines, rigging, sails not to mention compliance and health/safety costs with kitchen, head, fresh water storage; even stripping out the diesel to replace it with additional cargo/water storage, I don't see getting anywhere close to the cost efficiency as personal transport of the bicycle. I do think there are some possible fishing/cargo applications of sail, but that's still a long way up the price curve for fuel...
nb.. bicycle does have maintenance / wear and tear costs itself, but I play with&abuse mine too much to know what they honestly are.
nb2.. forgot you were in the PNW... that does change the math because the land routes are so catastrophically bad... for most though, I don't think it works out so well as a general case.