At a test range near Naval Air Station Patuxent River,
Md., two F-35B test aircraft accomplish a formation test point March 17.
Lockheed Martin test pilot David “Doc” Nelson flew BF-2 and Royal Air Force
Squadron Leader Steve Long piloted BF-3. The F-35B and F-35C variants are
undergoing test and evaluation for delivery to the Marine Corps and Navy
respectively. (Photo courtesy of Lockheed Martin)

Lockheed Martin press release