FPL Sends Historic Legacy Mahogany to Help Restore U.S. Capitol

On Wednesday, January 6, 2021, the U.S. Capitol building was the target of an attack that left it ransacked and vandalized. The destruction of many irreplaceable historical wooden artifacts and objects, including doors, intricate millwork, moldings, desks, and podiums, was extensive.

Enter Nathan Kamprath, U.S. Army DEVCOM and leader of a current joint project between the Department of Defense (DoD) and Forest Products Laboratory (FPL). Recognizing the significance of the damage, Kamprath contacted FPL research engineer Robert Ross for assistance with the U.S. Capitol repair. He then connected Ross with Architect of the Capitol (AOC) historic preservation specialists overseeing the restoration of the U.S. Capitol building. 

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Throwback Thursday: Propeller Production at FPL During WWI

Wood propeller research and production was a major focus of activity at the Forest Products Laboratory (FPL) during World War I. During this time, the University of Wisconsin cooperated with and supported the Lab by providing the extra space needed for propeller production.

As shown in the poster below, in addition to the main location of the laboratory, the University provided space in their education buildings, soil building, and agriculture engineering building, for FPL’s airplane parts and woods laboratories, as well as an experimental propeller factory.6900

Laboratory staff worked around the clock to develop and manufacture wood propellers that could withstand the drastic changes in humidity they were likely to encounter. Click on each of the historic photos below to get a closer look on our Flickr page.

FPL research on propeller blades that resist warp, twist, and unbalancing with changes in humidity.

Experimental propellers produced from seven species of wood.

FPL staff involved in propeller research, 1916.

Manufacturing propellers at the FPL. Ten propellers were produced per week by workers on a three-shift-per-day schedule.