Archive of the Yahoo! Groups mailing list for the Bug hand-launch glider 2002-2018

From: John Gallagher <gldrgidr@...>
Date: Wednesday, November 16, 2011 1:29 PM
Subject: Re: [BugHLG] Carbon rods in Dubro micro "clamp" for the servo..
I avoid carbon rods for something like the Bug.  Something this small is more likely to be knocked around by the wind causing hard landings.  Carbon rods do break.  If they break in the pushrod housing you wind up with a one way control - the pushrod will push but because of the break it will not pull.  Better to go with thin steel pushrods (.020 to .024 inch)  at least until you have enough experience with the Bug to reduce the occurance of mishaps.  The difference in weight is very small even if it doesn't seem as high tech as carbon.   Good to see more Bugs are being built.  For a while there, I thought that this group was dead and buried. Thanks to Rick for starting the "Bringing back the Bug" thread on RCGroups.   John ________________________________ From: Laurie <lwjcarroll@...> To: BugHLG@yahoogroups.com Sent: Tuesday, November 15, 2011 9:53 PM Subject: [BugHLG] Carbon rods in Dubro micro "clamp" for the servo..   Hi all, I had set this up and it was working very well...also relatively easy to in stall..I used the Dubro heat shrink/L shaped connector wire for the surface horns and the Dubro micro servo part to poke the rod through etc...and screw clamp... I had been noticing that the rudder didn't seem to "answer" at times and while doing repairs on the wing from yesterdays crash ( turned d/wind and the wing tip hit ground...shattered two ribs and need recover)...that I found the screw clamp in the servo end fitting had crushed/broken the carbon rod....letting it flex kind of around the fitting when the servo moved...the rod had still held together so always looked ok when I had checked it....once I used the servo testor today I noticed the rod "wrapping" around the fitting so to speak..hope this makes sense... Making up a new push rod now and will be much more careful in fitting it in etc to the servo fitting... On one flight yesterday ( rather windy) it just "sat there into wind" (about 10-20 feet up) when I gave full rudder...very sluggish to respond....so I hope this saves some one else a major problem... Rgds Laurie [Non-text portions of this message have been removed]