Don smith corsair

That's the 120 inch one? Moki 250, but the cost is hard to swallow. Other than that one of the big four cylinders, DA200 DLE222 or a big 3W. The ZDZ 180 twin is a powerhouse and getting popular. Lots of choices.

 

Warbird with a big radial is hard to beat. Nothing like a high speed low pass with a radial being over revved.

 

What do you know about that? I was actually just looking at the DS F4U Corsair. There are some really great videos on YouTube. This plane literally "SREAMS" Moki 250 radial. And truthfully, if I were ever to do one...(I may after the DS Stang) price tag or not, Moki would be on tap. I will agree a big quad would be nice. You can't beat the "growl" of the big "dub" quad. Or even the DLE. My friend has a CompArf P47 with a Moki 250. Dang...that thing is so awe inspiring. Yup, I would have to eat raman noodles for two years, but I would buy a Moki.

 

The ASP 400 is a glow motor and only about 60cc. Way to small an engine for your need. Moki 250 5 cylinder or 7 cylinder would be an excellent choice as @stangflyerand @Jetpainter said. 250cc of fire breathing ROAR!

 

RCS would do great too. Side by side pics of the 5 and 7 cylinder radials. I think the RCS line is made in Italy and Moki in Poland.

There also may be waiting lists for both. I have seen good deals come on ebay for the Moki's.

Moki RCS Moki RCS

 

One could always go with a Valach Motors VM R5-250 radial engine.
A little info, https://toni-clark-shop.com/Valach-Motors-VM-R5-250-radial-engine .
Just sayin...

 

Cosmetically appealing with the valve trains all covered up. I like it.......So's how's bout you get me one for my birthday?