DaleCS:

Coupla Things:

1) What exactly is that prop adaptor you got from C&H ? Can you tell me a Part #??

I'm very interested 'cause I'm slowly finishing a Byron Zero I bought 12 years ago with a Prec. Eagle 4.2. RC Ignition put an electronic synchrospark on it, but of the two Byron 3-blade props I've got, one is irreparably off-center and the other doesn't turn good rpm. I think those Byron props were nice scale "lookers" but are not well-matched to the 4.2. Now, unfortunately, I've got my ignition magnets set in them.

2) Although this is my first Byron, I have a lot of experience with large warbird gassers, and I can address some of your concerns. I assume the Hellcat, like the Zero is in the 85-90" WS category. If so: A) you need to use a prop that'll get you close to 7,000 rpm, even if it looks small against the cowl. If not, the mathematics of a 10" pitch is not going to give you enough airspeed. If the 4.2 is close to the G-62, a 22X10 should be about right. B) 30 pounds is not too heavy, and 56 oz/ft wing loading doesn't go on the same worry scale as smaller planes with less wing chord and volume, wherein 30 oz+ would be worrisome.

Please keep us posted here with pictures, and Good Luck.

Maybe we can dog-fight someday at a meet. Be a real crowd-pleaser (if you win).


mt