OK guys; a bit more info.
I used these devices when I was flying the Lockheed P-3 Orion series of anti-submarine warfare (ASW) aircraft from 1968 until 1983, when I retired. Guy, you have a good memory. Yes, most of my time was at the Naval Air Station (NAS) Jacksonville, FL. I had tours in VP-24 (Batmen), VP-30 (Pros) as a flight instructor, and VP-56 (Dragons). We did three deployments to Keflavik, Iceland, which was the best soviet sub-catching place in the Atlantic, and one to Bermuda. I ended up as the Senior Test Pilot at the Naval Aviation Depot in Jax, where the P-3’s and A-7’s went for major overhaul. After they had been taken apart, overhauled, and put back together, I got to fly them to verify the work.
Those interested in the P-3 can just Google P-3 Orion, and have an interesting time reading all about the world’s best ASW airplane. I was fortunate to have flown every model, and helped design one, the TP-3.
The P-3 carries lots of ordnance, which has changed over the years. In the early days, we carried depth charges, 5-inch rockets (to penetrate a surfaced submarine’s pressure hull), 2.75-inch rockets, MK-46 torpedoes, special weapons (don’t ask), and AGM-12B Bullpup missiles. I got to sink a destroyer with Bullpups (exercise, on a surplus U.S. WWII ship). We could also lay a minefield of 5,000-pound mines.
Some of the ordnance was external, on the wing stations, and the P-3 also has a big bomb bay for internal loads. The airplane also carries sonobuoys, which listen for subs. These can be fired from external chutes, or from an internal “free fall” chute that can be used when the plane’s not pressurized. We used the free-fall chute to launch the devies mentioned in this thread. I don’t remember them ever being on a wing or bomb bay station.
That’s probably more than you care about, but still, it’s ordnance.