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TailTwister -> RE: 47" Edge V3 New Batch!!! (8/18/2007 10:45:34 PM)
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I'll comment on your question.
First, off, the best way to describe the difference is that there is a balance between stability (solid, forgiving, smooth) and aggrressive (agile, responsive, loose). The difference is where the plane sits based on that balance. The Kat is more aggressive, but can be tamed down to be a little less aggressive. The Edge is inherently more stable, and can be tuned up to be a little more aggressive.
On a scale of 1 to 10 (this is all subjective now...) With 1 being rock solid stable (but still 3D) and 10 being a Chinn Yakk (nutz crazy loose and aggressive), I'd put a normally set up Edge at a 4 and a Kat 40 at a 7. You could tune an Edge up to about a 7, but you are not likely to get the Kat back down to a 4.
Does that make sense?
As for engines, the Ultimate 70 is light, but not a powerhouse. It will be OK, but don't expect to it to be a rocket. I'd go an APC 13x4W, or a Pro Zinger 14x4. Some guys like a little more pitch speed, and will recommend a plastic Master Airscrew Scimitar 13x6.
I'm unfamiliar with the servos you mention, but I'd think you could epoxy in a piece of basswood or spruce stick in the servo pocket in one end, and mount them fine. Just be sure you are at 45, or better, ounce inches of torque. Anything better than that will likely be fine.
Mike???
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