There are several forum topics in the 750 STOL area about seat belts and 4 or 5 point harnesses.  So far I have seen three different ways of upgrading to the 4 or 5 point harness from the stock over the shoulder seat belts.  Joe Harrington has posted pictures of his installation using a cable attached behind the baggage back wall and John Austin has posted pictures of his installation using a welded tube running from the existing shoulder belt tabs.  Both of these types of installation are…

I later added a Velcro strap to hold headsets.  Seat cushions are positioned in the seat pan with Velcro also.

As with all my fabrication, I had it Cat scanned to be sure there were no defects.…

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I have been flying for several years with just some Noral seat cushions from Aircraft Spruce.  The 3” seat bottom was okay but the 2” back was always slipping between the back support bars.  I ended up adding a stadium cushion and a lumbar pad without much better results.  After reading several of the seat discussions on the forums, I decided to build my own upholstered seats.  As usual, I studied the work of my hero, John Austin, and copied his and others’ seats.  But in this…