Paul,
See you're collecting info for the next project. Great! For what it's worth, I built a Brodak Lightning Streak for my first plane. Detailed instructions, good plans, and nice wood. (The plans are by Dave Braun. He lived a mile or so away from me when I was a kid. I visited his house once, and to an 11 year old, it was like toy heaven! I couldn't imagine having more than one engine, and not an .049!) I used a new O.S. .35S with stock muffler on pressure. Clear MonoKote on the wings, clear dope everywhere else. Flew on 60' lines over pavement (no grass available.) The plane flew fine from the beginning, and as I built up experience, I started improving things and shifting the CG aft. That one lasted about 50 flights before I confetti'd it. I'm still trying to decide if I like my SuperClown with the O.S. .25FSR yardsale engine better. I KNOW I'd like to have the L-Streak back!
The O.S. .35S was ok in the L-Streak, but it had plenty of excess power and could have been lighter. The 'Streak nose is pretty short, so if your Fox is a shaker, that is a definite advantage! I've listened to lots of talk here in SSW about which Fox is which and I'm pretty confused. Seems like you need to know if yours is one of the milder versions, and what kind of rpm and prop it'll pull. It seems like it would have to be pretty powerful to haul the larger wingspan planes around. And the more modern planes seem to have thicker (more draggy) wings, too. But if you have the power, these can fly slower thru maneuvers. How are your reflexes?
The O.S. .25FSR is plenty too much power for the SuperClown as well. A more mild Fox (lighter?) and fixed flaps might be a nice combination. One of the local fliers here has an O.S. .25LA in a S-Clown with fixed flaps. It has plenty of power, too. One thing to consider in the built up wings is whether you want to tackle sheeting the leading edge or not. Most of the planes described so far are not sheeted or C-tube types. Some of the planes listed have flaps. Some that have flaps don't really need them, and you could simply glue them on as a fixed trailing edge. The extra hassle of the linkage and hinges may not be necessary.
I would rather build a Flight Streak or Lightning Streak than buy the ARF if you have the time. I don't like the hollow construction for durability. Besides, you can double the fun factor if you build it first and then fly it. (I always justify the hobby budget by comparing it to going to the movies. For $9, I get three hours or so of entertainment. Thus, about $3/hr. I can spend WEEKS building a plane, so it's only pennies on the hour! And I never seem to go to movies anymore....)
I took the Shoestring plans out of the box last night! Gotta decide if the Greenhead .15 will make it go....
Best wishes!
Dave
LA_Flyer