engineer question, (non klr, kind of)

[fw189uhu]

Just catching up after the flu, etc., and saw Bryan's very interesting suggestions. In case you're not familiar with the knots he describes, go to www.animatedknots.com/prusik/index.php to see animations of how to tie various knots. Pretty cool website, and it's a lot easier to understand how various knots are tied from watching an animation compared to a simple photo or drawing. Digger

--- In DSN_KLR650@yahoogroups.com, "bryanonfire" wrote: > > > > > Another source of information is to search "river rescue Z drag." Pulling a boat off a rock is probably more like pulling a motorcycle out of a deep ditch than hauling someone out of a crevasse. Solid anchors and good equipment are a must, you'll want some 1" tubular webbing for anchoring to trees or rocks as well as the pullys, rope, and caribiners. > > One thing a lot of drawings don't show, but it could save you from serious injury: visualize where the rope and pullys will go if any point fails. Some of it could come your way. Tie a jacket or some other large, soft object to that section of the drag system to slow it down as it flies your way. > > I carry this stuff on most of my whitewater river trips and it's too bulky and heavy to justify carrying it on a solo motorcycle trip, but no worse than a couple of come-alongs and a lot more versatile. Split up among two or three riders it would probably be worth taking if you were going into really rough terrain. For most motorcycle situations 20 - 30 feet of 1" tubular webbing and a lot of grunt work would probablly be a better choice: low bulk, super strong. > > It will all be useless if you don't know how to tie (and apply) the right knots: prussik and figure 8 at minimum, and possibly self - equalizing anchors depending on your anchor options. > > Mark is correct, hardware store stuff is not rated and you never know what kind of quality (or lack thereof) you'll get. Plus the rope you get at the local hardware store will stretch way too much, you'll want a static rope for this job. > > Bryan