05/31/2007. Remarks by Bill Ewing: "Coded "905", this was my aircraft. The tubular fairing on the port side is the housing for the MAD boom (Magnetic Anomoly Detector). In use, the boom with the MAD sending unit was extended aft. The 'Y' fairing under the cowling was the mount for the MAD Receiver unit. The round canisters were commonly known as 'butt cans'.
From the photo, the 'butt can' normally found on the end of the boom is not mounted in this photo, as the MAD gear was only there for show with VC-920.