Yes, the Erprobungsstellen (testing locations) Rechlin.
Here's an RAF reconnaissance photo:
Here's the US connection:
https://www.ndr.de/kultur/geschichte...echlin126.html
A history of Rechlin can be found here:
https://weaponsandwarfare.com/2017/0...telle-rechlin/
Something I didn't know is that it is adjacent to the largest lake wholly within Germany - the Müritz See.
There is an interesting-looking museum, just to the northwest of the old airfield:
https://www.luftfahrttechnisches-museum-rechlin.de
Kemble Pitts has control.