Magnetic Anomaly Detection - IJN ASW

[propbeanie]

See the PM I sent you Gray Lensman. Caution though... they're liable to limit how many messages you can keep in your Inbox now... it's a long boring tirade...

You could be running into one or more things. The games "Save" system seems to be lacking in "detail". I've seen magnificent explosions "live" in the game, that when I go back and watch them on the replay, they're puny. Then, the audio engine doesn't always fully restore from when you use TC, especially some of the sound effects and voices that are "wave" audio. Also, most of the ships don't make a "sound" below certain speeds... that is a "sensor" issue in the config files. Also, there is a certain "probability" in the game that your sonar dude is gonna mess up and have to be fired... Then there's the situation where after import mods, then de-activating mods, that all things may not be valid in your install.. Hopefully, you don't have to deal with user error, like I do... tic

This is the very short version...

[Rockin Robbins]

All right, here you go, from microfilm of the actual typewritten cruise report, USS Halibut covering November 14, 1944. These are all from https://issuu.com/hnsa/docs/ss-232_halibut and page numbers are written by hand on each page:









The bottom page was from the cruise assessment written by "The Commander Sub Squadron FOUR, WV O'Regan.

Pretty pedestrian compared to the fanciful account in the other book.

[Sniper297]

I was an aviation ASW tech in the 70s, what we used then was smoke floats. ("MADMAN, MADMAN, smoke away" was the call when you got a wiggle on the trace, the button push simultaneously launched smoke and burned a circle on the automatic plotter) My guess is the aluminum slick was just what they came up with as a marker, a dye marker would have worked just as well. As for the satellites I never heard that, and would tend to doubt it - the disturbance in the magnetic field wouldn't be big enough to be detected from 10,000 feet, let alone outer space. And the claim that we knew where every soviet sub was all the time is patently ridiculous - even if you're tracking all the KNOWN subs, how would you know if there were unknowns or not?

Obviously we had choke points like the Greenland-Iceland-United Kingdom gaps covered with SOSUS buoys, so if one of those picked up noise some P-3 Orions would be sent to investigate - at low altitude.

I was in a helicopter ASW squadron, more limited range than a P-3 so used mainly to confirm suspected contacts. With the ability to hover we could use the dip sonar to locate a MAD contact precisely.



Sikorsky SH-3 Sea King retracting the dip sonar.



Red and yellow thing on the far left is the MAD antenna, my buddy in the pic has his hand on a Mark 46 acoustic homing torpedo.

[kevinsue]

Geo survey and mining exploration companies in Australia used magnetic anomaly detection equipment installed in GA aircraft such as the Aero
Commander in the photo. It allowed a much more efficient and cost effective alternative to conducting conventional ground surveys.

[Armistead]

I'm pretty sure it's included in TMO and even recall some radar item sticking out in front of the plane that carried it, although no clue how it worked in game.