Aloysius John Williamson Leggepul’s Wonderplane
Aloysius John Williamson Leggepul’s Wonderplane A Wonderplane specially designed in the spirit of April Fool’s Day to avoid head-on collisions.
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‘John Van Valkenburg and his mysterious 1917 Wonderplane’
John Van Valkenburg and his mysterious 1917 Wonderplane
John Van Valkenburg and his mysterious 1917 Wonderplane In 1917 John Van Valkenburg, a Salt Lake City inventor, announced that he had conquered the laws of gravity with his Wonderplane.