[TEC] Sonar / Hydrophones fail to detect Merchants at slow speed

lurker_hlb3 · 02-14-08, 07:45 PM

Sonar / Hydrophones fail to detect Merchants at slow speed

All testing was conducted on a “stock” 1.4 system

If the merchant is traveling at 4kts or less the sonar will not detect the ship
If the merchant is traveling at 5 or 6 kts, AI Sonar operator will detect and track the ship. However if you man the sonar station yourself and turn the sonar to the ship’s bearing you will “not” hear the sonar contact the AI Sonar operator is reporting
If the merchant is traveling at 7 kts or greater the AI Sonar operator will detect the ship and you will be able to hear it at the sonar station when you turn to the sonar to the ship’s bearing.

LukeFF · 02-14-08, 07:56 PM

This has to do with the RPM the ship is putting out. By default a ship will not be picked up below 25% of its maximum RPM output.

donut · 02-14-08, 08:12 PM

Goofy ! the ship is still making way/sound should be detectable

Capt Jack Harkness · 02-14-08, 11:11 PM

Well, maybe machinery and crew sounds, but below 25% of maximum RPM the prop shouldn't really be cavitating and thus you would not hear prop noise (not much anyways).

donut · 02-14-08, 11:46 PM

Sonar will give you a bearing green lite on a sunken ship, this should be the same for slow ships making way. They are not below a thermal .

DrBeast · 02-15-08, 06:26 AM

Quote:

Originally Posted by lurker_hlb3

Sonar / Hydrophones fail to detect Merchants at slow speed

All testing was conducted on a “stock” 1.4 system

If the merchant is traveling at 4kts or less the sonar will not detect the ship
If the merchant is traveling at 5 or 6 kts, AI Sonar operator will detect and track the ship. However if you man the sonar station yourself and turn the sonar to the ship’s bearing you will “not” hear the sonar contact the AI Sonar operator is reporting
If the merchant is traveling at 7 kts or greater the AI Sonar operator will detect the ship and you will be able to hear it at the sonar station when you turn to the sonar to the ship’s bearing.

Aha! So that's why we couldn't hear certain types of ships on the hydrophone! It's been driving me nuts!
I wonder what effect tampering with either "Hydrophone speed factor" or "Hydrophone noise factor" in Sensors.cfg will have on that. :hmm:

02-14-08, 07:45 PM	#1
lurker_hlb3 Admiral Join Date: Apr 2005 Location: San Diego Calif Posts: 2,290 Downloads: 187 Uploads: 12	[TEC] Sonar / Hydrophones fail to detect Merchants at slow speed Sonar / Hydrophones fail to detect Merchants at slow speed All testing was conducted on a “stock” 1.4 system If the merchant is traveling at 4kts or less the sonar will not detect the ship If the merchant is traveling at 5 or 6 kts, AI Sonar operator will detect and track the ship. However if you man the sonar station yourself and turn the sonar to the ship’s bearing you will “not” hear the sonar contact the AI Sonar operator is reporting If the merchant is traveling at 7 kts or greater the AI Sonar operator will detect the ship and you will be able to hear it at the sonar station when you turn to the sonar to the ship’s bearing.

02-14-08, 07:56 PM	#2
LukeFF Silent Hunter Join Date: Apr 2005 Location: Riverside, California Posts: 3,610 Downloads: 41 Uploads: 5	This has to do with the RPM the ship is putting out. By default a ship will not be picked up below 25% of its maximum RPM output. __________________ ROW Sound Effects Contributor RFB Team Leader

02-14-08, 08:12 PM	#3
donut The Old Man Join Date: Apr 2004 Location: The Shifting, Whispering Sands, NM Posts: 1,463 Downloads: 10 Uploads: 0	Damn,I had noticed this but thought sonar was broken Goofy ! the ship is still making way/sound should be detectable

02-14-08, 11:46 PM	#5
donut The Old Man Join Date: Apr 2004 Location: The Shifting, Whispering Sands, NM Posts: 1,463 Downloads: 10 Uploads: 0	Harkmess Sonar will give you a bearing green lite on a sunken ship, this should be the same for slow ships making way. They are not below a thermal .

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02-14-08, 11:11 PM	#4
Capt Jack Harkness Samurai Navy Join Date: Nov 2007 Posts: 567 Downloads: 210 Uploads: 1	Well, maybe machinery and crew sounds, but below 25% of maximum RPM the prop shouldn't really be cavitating and thus you would not hear prop noise (not much anyways).