A unique design with some interesting features, the Terk Multi-Directional antenna is not the best performer if you're trying to tune in as many stations as possible. Why you can trust Tom's Guide ...

The multi-award-winning Sharrow Propeller family is growing ... in torpedoes and improve speed and directional stability, Volvo Penta adapted the design for boat drives. The contra-rotating ...

one 9-blade propeller from GE AAT Deutschland and an 8-blade design from CENAERO. The down-selected designs were the result of a multi-disciplinary approach to the problem with highly ...