The 7-blade Silent 7 propeller was introduced to the general aviation market in 2020 when certified on the Pilatus PC-12.

As early as the 1940s, U.S. aircraft were experimenting with jet engines, threatening to make the propeller-driven aircraft ... releasing a bomb at low altitude, and then immediately pulling ...

on Wednesday announced the successful high-altitude trial of an indigenous integrated life support system (ILSS) for the Light Combat Aircraft (LCA) Tejas. The On-Board Oxygen Generating System ...