I was wondering which is the best position to mount the engine on the four star. I plan on building the balsa cowl, does it matter if I put it inverted or 90 degrees.
thanks
RonH

Mounting it 90 degrees would most likely be the easiest and most trouble free, but not necessarily the prettiest.

I would say 90 would be your best bet.. Tho I have seen an engine at
45 which I thought looked better, which would still be less of a problem
than inverted.. It was not on a 4* but it did "hide" the engine a lot better
than at 90...