I am hoping to drain your brain for a solution to mount our RV14A to the hangar ceiling. In Switzerland hangar places are rare and hangars are packed with planes, wingtip to wingtip. The ceiling mount is a nice solution, keeping your aircraft away from others and avoiding damage when moving planes around...
The lift and mounting principle will look something like on that Legacy:
I have a hangar space now for my Vari Eze and intend to use it for the RV.
The main attach bracket will be on the main spar, looking something like that. I will exchange the close tolerance bolts to attach the spar with longer ones and install the bracket on the aft side. A hole in the upper wing root fairing will enable a long bolt to be installed into the bracket. There is a threaded, vertical hole in the bracket.
I checked various loadings. The main force will be on these two brackets, but I need a forward attach point for the remaining 150-ish kilograms, 330 lbs.
Thinking many options through and discussing with fellow builders I ended up with two options. Both will require two small holes for bolts through the upper cowling that I will eventually close with two small doors. And again there will be a threaded hole to attach a bolt from the lift.
Use the FF01400 engine mounts upper horizontal bars on the left and right side for two attach brackets bolted around the engine mount bars.
Of course the engine mount was not designed for a lifting force, but keeping in mind that it will be roughly 75kg per side (170 lbs) it is not a lot, even with a safety factor of 4...
Use the engine attach bolts (AN7) and attach two brackets.
Again, the bolts have not been designed for that load, although it is roughly the engine weight, it would almost kind of equal the load
Any inputs and preferences?
Thanks in advance