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Have been mulling over a couple of simple fun scale rocket glider projects that would need a canard to look right.
A fixed canard with no pitch control (as well as a full flying one or one with pitch control surfaces) causes the CP to move forward, all else being equal, which means more nose weight for the typical RC rocket glider with the motor in the rear.
A free floating (full flying) canard would have the effect of removing the vast majority of the canard forward area effects from the aircraft and would reduce the amount of needed nose ballast.
Has been proven to work on canard equipped missile models like the Sidewinder and the later versions of the Python from Israel. There is also some data in various NACA wild tunnel tests on missiles with free floating canards.
Thinking about a RC rocket glider version of the Von Braun Ferry Rocket, the one with a large swept wing and canard. I am sure it will fly quite decently as a elevon controlled flying wing, if you removed the canard completely, given the generous wing sweep and area.
Ergo, the same model with a free floating canard, full flying on a pivot, properly balanced and with the pivot in the right place to avoid flutter should look right and end up being lighter with a reduced amount of nose weight.
Have sketched up a smallish one for the 18mm D2.3 reload, so saving a little nose weight is useful at this level of power.
A fixed canard with no pitch control (as well as a full flying one or one with pitch control surfaces) causes the CP to move forward, all else being equal, which means more nose weight for the typical RC rocket glider with the motor in the rear.
A free floating (full flying) canard would have the effect of removing the vast majority of the canard forward area effects from the aircraft and would reduce the amount of needed nose ballast.
Has been proven to work on canard equipped missile models like the Sidewinder and the later versions of the Python from Israel. There is also some data in various NACA wild tunnel tests on missiles with free floating canards.
Thinking about a RC rocket glider version of the Von Braun Ferry Rocket, the one with a large swept wing and canard. I am sure it will fly quite decently as a elevon controlled flying wing, if you removed the canard completely, given the generous wing sweep and area.
Ergo, the same model with a free floating canard, full flying on a pivot, properly balanced and with the pivot in the right place to avoid flutter should look right and end up being lighter with a reduced amount of nose weight.
Have sketched up a smallish one for the 18mm D2.3 reload, so saving a little nose weight is useful at this level of power.
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