Very interesting.I am just building one and can’t decide whether to put a diesel up front or go electric.My last build was an electric Dixielander which has been great to trim and stays clean. I used a Sergio Zigras Ztron e-timer and 3s lipo 450mah and a chinese motor about 22mm by 24mm.I fly it in F1Q and BMFA power.
Do I see improvements to the wing structure, by way of a top spar and some diagonals? It has the dreaded single spar underneath on my plan.Guaranteed exponential dihedral and washout! The tail is the same.
I see the motor is on top of the fus.How does it fly?
I have had a lot of pleasure from my electric Dixielander. It is a truly great design.With a decent Lipo it now climbs to a great height in the 20 seconds allowed over here. It is lighter than with an I.C. engine, so it glides really well.
I am re-covering my original Senator. I hope to trim it for your postal. In mini vintage I am flying a Buckeridge lightweight at the moment. It glides better with a folding prop and a thinner wing section, although I would not want to risk it in anything but calm conditions.