[6] It was also at Langley that Weick headed the development of streamlined, low-drag engine cowling technology that was to advance aircraft performance dramatically.

In addition to the integrated controls for ease of flying, he incorporated the tricycle landing gear that later became standard on most of the world's aircraft.

[6] Later in the 1930s, Weick improved on that design with the Ercoupe, the two-seat, all-metal, low-wing aircraft that was so easy and safe to fly that many students mastered it in five hours or less.

He mentioned that he had seen gas turbines demonstrated as early as 1922, and that their future use in light aircraft would only be viable with development of cost-efficient materials that could withstand the heat.

In addition to the Pawnee, Weick co-designed Piper's Cherokee line of personal and business light aircraft.

[6] Weick remained active in general aviation, regularly attending the Experimental Aircraft Association Oshkosh airshow for entertainment and lectures.