Seem to be flavour of the month in these fuel saving times, now there are even split winglets or the Spiroid double blended winglets on the Falcon 50, so my question (Apologies if it sounds stupid.. haven't been in actual aircraft engineering for ten years now).. would there be a benefit to fitting blended winglets to Horizontal stabilisers? If not, why not.. surely they must create similar drag conditions at the tip to the main wing?
Just curious..
