tag:blogger.com,1999:blog-7334230772332433270.post2915697532135647389..comments2024-02-27T11:15:46.473-06:00Comments on Quidnon: Steering linkageDmitry Orlovhttp://www.blogger.com/profile/00381674543530177679noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-7334230772332433270.post-20446324757458835522015-01-27T20:01:13.678-06:002015-01-27T20:01:13.678-06:00Shock absorbers... But wouldn't that just dela...Shock absorbers... But wouldn't that just delay the release response in case of overload? And isn't water itself a good enough shock absorber?Dmitry Orlovhttps://www.blogger.com/profile/00381674543530177679noreply@blogger.comtag:blogger.com,1999:blog-7334230772332433270.post-57260980386535223162015-01-27T19:27:29.275-06:002015-01-27T19:27:29.275-06:00It says, being a subconscious it prefers Jungian t...It says, being a subconscious it prefers Jungian therapy. And by hydraulics it means shock absorbers paired with your tension springs. Jon from Virginiahttps://www.blogger.com/profile/06603009321120447820noreply@blogger.comtag:blogger.com,1999:blog-7334230772332433270.post-87863908135050993382015-01-27T18:58:10.387-06:002015-01-27T18:58:10.387-06:00Well, if there is a solution using hydraulics that...Well, if there is a solution using hydraulics that is cheap, lasts the life of the boat without any maintenance, undergoes graceful degradation and can be repaired anywhere in the world using bits carved out of driftwood and lashings, then it would work. If one hydraulic leak anywhere renders the boat unsteerable until it is rescued, towed into a marina, and consultants are flown in, then your subconscious is in need of Freudian analysis. Dmitry Orlovhttps://www.blogger.com/profile/00381674543530177679noreply@blogger.comtag:blogger.com,1999:blog-7334230772332433270.post-65167392273883677672015-01-27T18:18:48.233-06:002015-01-27T18:18:48.233-06:00When I think about this problem, my subconscious k...When I think about this problem, my subconscious keeps insisting on hydraulics. It's not telling me why, just yet. If it tells me, I'll tell you.Jon from Virginiahttps://www.blogger.com/profile/06603009321120447820noreply@blogger.comtag:blogger.com,1999:blog-7334230772332433270.post-39733923331934135652015-01-27T16:51:37.981-06:002015-01-27T16:51:37.981-06:00I won't use aluminum where forces are concentr...I won't use aluminum where forces are concentrated. I'll use stainless there. With bicycles, there is the desire to make things extra-light. It's less of an issue here, so I'll use rod instead of tubing. There should be plenty of strength to spare.<br /><br />The need to do "back-end alignment" is a good point. I'll discuss it in tomorrow's post.Dmitry Orlovhttps://www.blogger.com/profile/00381674543530177679noreply@blogger.comtag:blogger.com,1999:blog-7334230772332433270.post-66172066264130442172015-01-27T16:34:32.765-06:002015-01-27T16:34:32.765-06:00So, the aft whipstalk isn't bent, just moved a...So, the aft whipstalk isn't bent, just moved a certain way to toe in the rudders. Great. Some of the serious bicycle folks I know (and one of the best TIG welders out there) jokingly refer to aluminum as the 'false metal', because of fatigue issues in bicycles. <br /><br />Any turnbuckle-like stuff in there, to tune the linkages?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7334230772332433270.post-14662373473040584752015-01-27T15:51:53.363-06:002015-01-27T15:51:53.363-06:00That's a really good point!
Last time my rudd...That's a really good point!<br /><br />Last time my rudder got a sudden sideways jolt it snapped my tillerpilot in half. I'd rather that didn't happen, as I lost a $600 piece of electromechanical equipment (which insurance paid for, but whatever).<br /><br />The simplest approach I can think of is two tensioned springs that hold each tiller straight unless there is an excessive load, and then gives way temporarily, snapping the tiller back into place as soon the excessive load is removed.<br /><br />I'll draw something up.<br /><br />No complaints about the rest of the linkage?Dmitry Orlovhttps://www.blogger.com/profile/00381674543530177679noreply@blogger.comtag:blogger.com,1999:blog-7334230772332433270.post-46076095868151066102015-01-27T15:38:27.212-06:002015-01-27T15:38:27.212-06:00This one gives me a "hmmm" instead of an...This one gives me a "hmmm" instead of an "eep". Is there a cotter pin or some similar "mechanical fuse" at the connection to the rudder post? I'm having trouble seeing what happens when there's a sideways shock to a rudder.Jon from Virginiahttps://www.blogger.com/profile/06603009321120447820noreply@blogger.comtag:blogger.com,1999:blog-7334230772332433270.post-77728943933300176102015-01-27T09:15:53.206-06:002015-01-27T09:15:53.206-06:00I chose aluminum because it has good stiffness for...I chose aluminum because it has good stiffness for the weight (which is important to keep down, to reduce inertial loads) and because it's easy to work.<br /><br />Nothing is bent.Dmitry Orlovhttps://www.blogger.com/profile/00381674543530177679noreply@blogger.comtag:blogger.com,1999:blog-7334230772332433270.post-50141960636862682372015-01-27T08:47:11.076-06:002015-01-27T08:47:11.076-06:00Does it have to be aluminum? Why not galvinized ...Does it have to be aluminum? Why not galvinized steel or stainless? Or are you assuming that the loads won't fatigue it?<br /><br />Is the aft whipstalk being *bent* or pivoted? If it was pivoted (with the right <br />mechanical linkage), you could get the same effect, without the bending. <br />Anonymousnoreply@blogger.com