Archery arrow with freely rotational broad blade arrowhead to avoid windplaning

作者: Richard D. Tone

DOI:

关键词: Low frictionRotationStructural engineeringGeologyArrowheadGeometry

摘要: An archery arrow includes a tubular aluminum housing attached in an opening the leading end of shaft. A hard insert with plurality thin, circular, annular, peripheral ridges is rotatably disposed housing, smooth interior surface and surfaces providing very low friction bearing. The threaded for receiving stud broad blade arrowhead. During flight, shaft spins rapidly due to offset fletching on trailing arrow, but arrowhead relatively little, thereby avoiding windplaning also substantially increasing penetration into target. In one embodiment, blades arrowheads are direction opposite cause rotate rotation during resulting further decreased increased stability accuracy.