At 06:14 PM 5/18/00 -0700, g w wrote: >Here is something I have been thinking about. Maybe I think to much, (yes, >I do) but I wonder if it is really right to tie the wing lines with slack in >them like it says in the manual.
The manual was written before the advent of synthetic ropes, which do not change length in weather. Both hemp and cotton rope do so, and a tightly tied natural line can put quite an additional strain on things due to wetting and drying. It was actually possible for this to be a damaging sort of additional strain. Preferred material for tie-downs is NYLON (not DACRON or Polypropylene). Nylon has a springy sort of give to it, which absorbs shock quite nicely. You can safely snug them down. The other types really don't give at all, nor do they absorb shock. Polypro is rather hard and abrasive and in the absence of a lot of tension, holds knots badly. No need to go hog wild with the snugging down. If you can't displace the tied line more than an inch or so out of column, that is snug enough. IMHO the airplane is a lot safer if it strains a bit and moves at most an inch or so against a snug line than if it builds up a head of steam and gets snubbed off after a couple of feet of movement. Greg Greg __________________________________________________________________________ ______ To unsubscribe from this list please send mailto:[EMAIL PROTECTED] ___________________________________________________________ T O P I C A The Email You Want. http://www.topica.com/t/16 Newsletters, Tips and Discussions on Your Favorite Topics
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