Official Freewing JAS 39 Gripen 80mm EDF Jet
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Yes and no.
Roll and pitch authority stays fine into really, really high alpha, both with vectoring and without. All that requires is good CG, which you probably have never tried.
Yaw authority on the other hand goes down the drain without vectoring, and remains solid with. So for yaw, which this really boils down to, vectoring is day and night difference.
Freewing A-10 turbine conversion: http://fb.me/FreewingA10TurbineConversionComment
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Well it took longer than I'd thought (go figure) but the leading edge flaps are done. Thin plastic from a Xmas wrap box was used to cover the bottom wing gaps- these slide back over the wing as the flap comes down. I have them on a 3 position switch and deployment is slowed to 2 seconds- flight modes are also being used, allowing for separate trims in each position (Hugh W. will approve :).
Weight gain is about 20 grams per wing- haven't re-checked the CG yet but may be able to remove most of the lead added for the maiden flights.
I'm really looking forward to trying the flaps out in flight, but that will probably have to wait 'till spring. Now on to the wing pylons...
Merry Christmas all!
TomComment
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Looks great, looking forward to hear the results!Well it took longer than I'd thought (go figure) but the leading edge flaps are done. Thin plastic from a Xmas wrap box was used to cover the bottom wing gaps- these slide back over the wing as the flap comes down. I have them on a 3 position switch and deployment is slowed to 2 seconds- flight modes are also being used, allowing for separate trims in each position (Hugh W. will approve :).
Weight gain is about 20 grams per wing- haven't re-checked the CG yet but may be able to remove most of the lead added for the maiden flights.
I'm really looking forward to trying the flaps out in flight, but that will probably have to wait 'till spring. Now on to the wing pylons...
Merry Christmas all!
TomFreewing A-10 turbine conversion: http://fb.me/FreewingA10TurbineConversionComment
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Nice flights. The smoke looks especially good down low when you have a background. It looks like you don't get many sunny days in your region that are great for smoke. It would be cool to see it backlit with smoke on.Comment
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