[1][2] Lamson designed and built the Quark in 1964 as a lighthearted experimental aircraft project to create a prone position-pilot glider.

[1] The PL-1 is constructed from fiberglass, with the wings made from a balsa-fiberglass sandwich that was laid up in a female mold.

The landing gear was a monowheel, with small wing tip skids.

[1] Only one Quark was built and it was registered with the US Federal Aviation Administration in the Experimental - amateur-built category.

The Quark was removed from the FAA registry on 13 August 2002 and the aircraft likely no longer exists.