Are you sure that’s the White 1 engine? Those cowlings look kinda familiar…..

Incidentally, and in partial reply to Dave, the 801 is not designed to run uncowled. The pressure cowl is so arranged as to force air back through the oil cooler, which might, in part, explain any slight problems.

That’s an interesting point Bruce. I wasn’t aware of that. Learn something new every day…

I had a quick search on youbend and there doesn’t appear to be any video yet (wishful thinking?!). Would love to hear it in the flesh/metal!