skywagon8a
MEMBER
SE Mass MA6
The airplane which had the eye bolt issue to which I was made aware of was a Cub Crafter airplane. I do not know how Jay does this.
The flexibility is in the pivot which is allowed by the bolt which passes though the clamp thus acting like a hinge. When that "hinge" is removed, something else has to absorb the flexing. It is the bolt that allows the flex, not the clamp.
Picture that long strut vibrating. When the lower half moves down the upper half is moving up and vice versa. The jury strut attachment divides those two halves. Thus the bolt which holds the jury strut to the clamp acts as a hinge. When that hinge is rendered inoperable that flexing has to be absorbed elsewhere.
Your fitting to the spar looks like a couple of AN3s. Certainly adequate. It's the eye bolt in the strut which is my concern.
If you wish to use an eye bolt in this location, use some other attachment to connect the jury strut to the eye bolt which will allow the flexing (hinging).
The flexibility is in the pivot which is allowed by the bolt which passes though the clamp thus acting like a hinge. When that "hinge" is removed, something else has to absorb the flexing. It is the bolt that allows the flex, not the clamp.
Picture that long strut vibrating. When the lower half moves down the upper half is moving up and vice versa. The jury strut attachment divides those two halves. Thus the bolt which holds the jury strut to the clamp acts as a hinge. When that hinge is rendered inoperable that flexing has to be absorbed elsewhere.
Your fitting to the spar looks like a couple of AN3s. Certainly adequate. It's the eye bolt in the strut which is my concern.
If you wish to use an eye bolt in this location, use some other attachment to connect the jury strut to the eye bolt which will allow the flexing (hinging).