Extreme Flight MXS V2 64" Green/WhiteExtreme Flight MXS V2 64" Green White The Extreme Flight MXS is loaded with unique features, including first rate hardware, components and thorough instructions to ensure a trouble free assembly and set up. It's no secret that Extreme Flight makes one of the best Yak 54 airframes on the market. With over a decade of experience with this airframe, countless contest wins and thousands of satisfied customers, the Yak 54 has been our "bread and butter"