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What could cause extremely high effort to release a Tost CG hook on aTwin Astir?



 
 
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Old June 1st 15, 04:24 PM posted to rec.aviation.soaring
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Default What could cause extremely high effort to release a Tost CG hookon a Twin Astir?

On Monday, June 1, 2015 at 3:33:14 PM UTC+1, Bill D wrote:
On Monday, June 1, 2015 at 8:25:42 AM UTC-6, Bob Kuykendall wrote:
On Sunday, May 31, 2015 at 7:12:52 PM UTC-7, Bill T wrote:
Hate to launch again as an "experiment " without knowing what is really going on.


I'd suggest anchoring the glider, and using a come-along to tension a rope on the hook to some modest value, say ~150 lbs, and actuate the release.. That will at least give you an idea of the relationship between tow rope force and actuation force. It will also show you if anything is distorting under tow force.


We're thinking along those lines too. However, to check a CG hook at the rope angles normally experienced, the pull angle has to be something line 45 degrees down from horizontal. That's going to be complicated.


Lay the fuselage on its side??
 




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