Test of the hover controller, in particular in yaw direction (multicopter frame, i.e. roll direction in airplane frame). The yaw is stabilized using the flaperons which are in the propeller wash. The flaperon deflections are visible when Chris pokes the kite with the broom. The controller quickly reacts and stabilizes smoothly the yaw angle back to zero. Note that differential propeller directions as used for small multicopter-drones do not offer nearly enough yaw moment for control authority of the kite's inertia or expected wind loads. In addition, such a control scheme greatly reduces the thrust for yaw stabilization. This is why this is not feasible for our system.

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Have you seen my latest full video yet? We met some amazing creatures - Sunflower Sea Stars - that perform a vital job balancing the ocean ecosystem on the Pacific Coast. Sadly, they’ve been almost wiped out by a vicious disease, and as a result, sea urchin populations have spiked (get it?), causing widespread destruction of kelp forests - the precious nurseries of the ocean. The Sunflower Star Laboratory is doing amazing work breeding Sunflower Sea Stars, researching Sea Star Wasting Disease, and working towards reintroduction and restoration. Here is a video of one of their Sunflower Sea Stars doing what it does best - eating a pesky sea urchin! Footage courtesy of SSL / Reuven Bank

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