In the one article I posted from the crew of a Tench class sub USS Torsk and USS Tennet firing these torpedoes, They mentioned the optimum firing angle is after the ship has just passed you, so that the torpedo has a better chance of following the sound contact of the ships.
I don't know how sensitive they really were, I can take a look and see what I find about the subject. Perhaps we could use the more sensitive german homing topedo variants if it's found the Mk 28 was more sensitive than the Mk 27?
Edit: found this info:
http://www.navweaps.com/Weapons/WTUS_PostWWII.htm
Quote:
|
A passive homing torpedo developed from the Mark 18 which in turn was developed from captured German G7e torpedoes. The USN considered motor and gear noises to be the most troublesome problem with the homing torpedoes, unlike the Germans, who regarded propellor noises as the worst problem. The Mark 18 was not a quiet design, so the Mark 28 used only one propellor and eliminated the tail gearing. There were four hydrophones on the curved part of the nose. In production from 1944-52 and remained in service until 1960.
|
http://www.sennet.org/diary_all.html
Quote:
|
TMCS(SS) Robert Marble 65-66, the "Doodle Bug" that George Bedell refers to is possibly the MK 27 acoustic (passive) homing torpedo. It was a 19" diameter, swimout torpedo that chased a target's propeller noises. It could also be the MK 28 torpedo, a smarter, heavier torpedo that reached the Pacific boats at the end of WWII. The MK 28 was 21" in diameter, impulse launched, and battery powered. By the time the MK 28 got to the fleet, there were few targets left. -- Jim Fields 46-49 gave me some more info -- The SENNET carried some MK 28 "stubby" torpedos which the crew called "Doodle Bugs." Two MK 28 "stubbys" could stowed on a rack that normally held one standard MK 14 torpedo. The MK 28 had to be fired at depths below 200' to keep it from picking up on SENNET's own propeller noises.
|
So it claimed as more sensitive compared to the Mk 27, it would pick up your own ships propellor noises more readily. From the diary they would fire these things and then sink down to at least 200 feet, or they could fire them from 200 feet on a bearing only launch and let the torpedo home in on the noise? Also when firing from stern tubes would have to be running silent engines off or turn engines off soon after firing before the weapon became active.
Perhaps we could use the smarter sensor modeled for the German Zaunköning or just use the entire torpedo model itself with adjusted stats for the Mk 28 or use the later updated variant Zaunköning mentioned in v1.5?