Oooohh! That's the first I've seen of the replicawarbirds.com site.

That's very close to what I had envisioned, though I'd prefer sheet metal. Problem is I don't think a replica that big is going to be much of a performer with just 150 horsepower.
I know the prop on the M-14P radial turns the opposite direction but 450 horsepower is what its going to take to motivate a scale warbird with a 30-foot wingspan. The M-14P engine is 4.5" taller than the Rotec but it offers three times the oomph - sounds like a far superior option to me. Also, its going to take that extra power to swing a properly scaled 3-blade propeller.
Now if Rotec would just make a prototype engine casing that supports a second row of cylinders, we might be in business! 300-hp would do the trick.
The profile of the engine on the 'Corsair 82' is just too large IMO (45" vs. 38" for the M-14P), which has necessitated that the plane be scaled up too much. He dodged the M-14P because he wanted an American engine with a prop that turned in the traditional direction. He's still stuck with an out of scale two-blade prop for that engine, but more power to him for making something happen to fill the nitch.
I personally think it will take a fine balance of airframe scale, engine profile, and horsepower to ultimately create a successful combination. It looks like the finished replicawarbirds F4U will have twice the weight of say an RV-4, so the understanding that horsepower options for the RV-4
begin at 150-hp tells me its going to be more about show than go for this one.
Then again, I may be wrong!

_________________
Rob Mears
'Surviving Corsairs' Historian
robcmears@yahoo.comhttp://www.robmears.com