First Flight with Winglets in C-130 General Posted November 10, 2017 On 11/8/2017 at 4:59 PM, Robert Podboy said: Kit Up.... post-production enhancement C-130 MICROVANES® Hurry while supplies last! I still think this is the most cost-effective drag reduction option for the Herc, and they can be installed on any variant. From what I have read, LM wasn't having much luck selling their microvane kit after all the R&D and flight testing. So they licensed the tech to Metro Aerospace and they made their own refinements. The Canadians are installing the Metro kits on their Js.