LAWN PATROL
Bird with a Bite The lowdown on vortex generators One of the trends with lighter indoor foamie aircraft is to have vortex generators on the wings and other control surfaces. The new Thunder Power Razorback biplane (thunderpower-batteries.com), from a recent review in Model Airplane News, is a good example of vortex generators on the wings. Between the top and bottom wing, there are 56 of them. We had to ask ourselves, do these generators really...
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