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Old 11-07-2003, 06:40 PM   #11
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The Ultrasport has a double tapered wing (the wing gets thinner towards the tip as well as less chord towards the tip). The 4*60 is constant chord and thickness and is a lot less slippery than the US. This helps greatly with speed control and can be set up for gentle flying characteristics. It will also land slower than the US with less chance of "tip stalling".

"Simplicate and add lightness"
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Old 11-07-2003, 09:17 PM   #12
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One more thing is I put the canopy on backwards to give it a more streamlined look.
I never crash...I land with style!

Ajax R/C Club
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Old 11-07-2003, 10:44 PM   #13
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The biggest difference is the airfoil between the two models. The 4* uses a semi-symmetrical airfoil, sort of an intermediate step between a trainer and a full blown aerobatic type model. This improves the stability of the 4* but it loses some of the point and shoot characteristics of a symmetrical airfoil (no biggie on a second model). IMO the taper of the wing will have little effect on overall flight performance.

Also the 4* is quite easy to keep light which will make it more forgiving than a heavier Ultra Sport.

I had a 4* as a second model and later flew an Ultimate Kaos (similar design as an Ultra Sport). It was a good progression of models, the 4* flew very stable yet was quite aerobatic, really let me go to my limits at the time without ever losing the model. The Kaos was much faster required a little more planning in flight but was a much more precise model to fly. I do think though if I had not gained the experience with the 4* the Kaos may have been a little bit much to handle at times.

The US will be fairly easy to fly, but I think you will get more out of the 4* at this stage in your flying.
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