The Future is here, Here is in Belarus
In Belarus they use planes with ellipse wings. They say it has a few benefits compared to single wing or double winged plane, when the wing is built like this it can be reduced in size, it’s firmer because the ellipse form is self sustaining, also it creates air vortexes to the outside edge of the wings which increases the power up to 30% compared to the traditional single fixed wing design.
Not Sure the last Design ever Flew
Flight on a circle. Take-off weight of the plane of 1360 kg. Capacity of the engine 230 л/с. Launch is made from an unprepared site of a field. A ground dry, rough, with biases to 5 °. Running start is carried out “on a hill”. Meteoconditions: air temperature +30°С, a wind counter 3-5 km/s., in air intensive bumpiness.