I am curious as a former 140 pilot. I noticed in a later video (4) that you have shoulder belts. The one I flew had no shoulder belts and one seat belt that went from one side to the other. Two people - one lap belt. I noticed in this video that the headliner was down. What do you attach the belts to? I didn't see any substantial structure up there *except* perhaps the flap rod carry though. Is that what you attached the belts to or loop around - or - did you add some more structure to attach to?
With this STC'd installation, there are very specific instructions on how to mount the shoulder harnesses. There are reinforcement plates added to the channel up above (aft spar carry through), then the seat belt is attached to that.
I am curious as a former 140 pilot. I noticed in a later video (4) that you have shoulder belts. The one I flew had no shoulder belts and one seat belt that went from one side to the other. Two people - one lap belt. I noticed in this video that the headliner was down. What do you attach the belts to? I didn't see any substantial structure up there *except* perhaps the flap rod carry though. Is that what you attached the belts to or loop around - or - did you add some more structure to attach to?
With this STC'd installation, there are very specific instructions on how to mount the shoulder harnesses. There are reinforcement plates added to the channel up above (aft spar carry through), then the seat belt is attached to that.