R-21 underway in Yellow Mill Channel off Bridgeport, CT. shortly after her commissioning in June, 1919. Note that the 3"/50 caliber deck gun has not yet been installed.
R-22 underway 1920-1922, probably in the Thames River, CT. south of the Submarine Base in Groton. Unlike the EB design R-boats, the Lake design stowed the gun with it pointed forward.
R-23 underway in Long Island Sound during her builder's trials, September 30, 1919. She had not yet been commissioned into the Navy, and Lake Torpedo Boat Company personnel, along with Navy observers, were sailing her. The yard personnel were responsible to test all systems on the boat to ensure that they met Navy specifications before the Navy would accept her.
