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RV-10 Jack Points
I wasn't happy with an unsupported bolt as a jackpoint, so I added a shim riveted to the inside of the skin. The shim contacts the bottom of the threaded T section that attaches to the spar. When the jackpoint is screwed into the wing in place of the tie-down ring, it's snugged up against the skin, shim and wing structure, so any bending load on the threaded portion is virtually eliminated.
![]() The jackpoint itself is made of a bolt with a cone attached with a set screw and tapered to a 90 degree profile. It sits into a 100 degree countersink in the top of the Harbor Freight bottle jack, so there's some tolerance for wing dihedral. The arrangement works well and is quite stable. By the way, there's plenty of extension on the Harbor Freight jacks to comfortably lift a -10 in a level flight attitude. ![]() |
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