Shy Torque Your photo shows a departure...in that the powered trailing link undercarriage is working merry wizardry to provide propulsion prior to the thrust of the wings taking over. But a lovely photo, nonetheless.
I knew a bloke once who had a Quickie on floats (!). At rest, the outer third of the prop blades were in the water, so upon start-up, the whole machine disappeared into a spray until it got on the step. Inital acceleration was brisk, but after it got on the step, the prop emerged from the water and acceleration from then was somewhat subdued, but it did fly! Required a new prop for each flight, of course.
Upon landing, your swan would have the undercarriage forwardly swept to cushion the landing a la ski (to prevent "digging in" as per the Harvards?).