---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Thu 12/14/23: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:50 PM - CS04 expansion (again) (D McFadyean) ________________________________ Message 1 _____________________________________ Time: 03:50:47 PM PST US From: D McFadyean Subject: Europa-List: CS04 expansion (again) Previous postings have noted how the Tufnol material of CS04 (the bearing at the bottom of the control stick) expands when oiled. The effect wears off over a couple of years as the oil evaporates. Recently my CS04 was inundated with flood water and expanded to the point that the aileron control was almost locked (Tufnol technical literature notes a 3% expansion at right angles to the grain). I wasn't prepared to wait 2 years for it to dry out, if ever. Neither packing with desiccant bags nor blowing with warm air made any difference. Apparently cotton (the fibre present in this type of Tufnol) needs 55 to 60 deg C in order to give up its moisture. Accordingly repeated cycles of heating to about that temperature with a hair drier (and protection of the surrounding composite to prevent distortion) was found to be slowly effective. It took a couple of dozen cycles of heating up to that temperature then immediately allowing to cool, rather than maintaining the temperature for a longer period. Hope this helps anyone in similar circumstances. Duncan McF. ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message europa-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Europa-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/europa-list Browse Digests http://www.matronics.com/digest/europa-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.