Alltrikes

Finally found that article I was looking for on the trickle down effect of drone research-- better props for us.  they mention and picture Sensenich by name ...

Unmanned aircraft and airboats would seem to have little to offer general aviation, but growth in the two industries is spurring advancements in propeller design and other technologies—with positive implications for aircraft owners and pilots. Sensenich Propeller has long produced wood, carbon fiber, and metal propellers for UAVs, airboats, and GA. And lately, substantial investments in specialized tooling and tough, lightweight materials for UAVs and airboats have led to a variety of new aircraft propellers—and lower prices.

“We’re producing large numbers of carbon ...  for the full story, click HERE

HERE was Ken's earlier story indicating that maybe propeller technology had plateaued--  well, maybe some leaps in technology have occurred.  All I know is that when Henry put on his Sensenich two-bladed prop (before he switched to 100HP even), he noticeably outperformed me (in Idaho mountains in summer)--  before that, I usually was a bit faster.