Stennis Rainbow Sailors test of the countermeasure wash-down system on the flight deck of the aircraft carrier USS John C. Stennis in the Atlantic Ocean, Sept. 18, 2019. SHARE IMAGE: Download Image: Full Size (1.01 MB) Tags: Navy Photo By: Navy Seaman Jarrod Schad VIRIN: 190918-N-HX510-0076N.JPG Photo Gallery