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Old 11-02-14, 10:15 AM   #21
makman94
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Join Date: Jul 2008
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Quote:
Originally Posted by BigWalleye View Post
Good idea, Makman. May I suggest an additional test? Program the escort to pass parallel to the sub on opposite course at the same range. If the sensor is modeled properly, there should be a large difference in detection probability between head-on and broadside-on. What do you think?
hello BigWalleye,
i did ,also, a mission as you suggested

Quote:
Originally Posted by irish1958 View Post
Yes, hydrophones only.
Thank you for your quick reply.
Irish, you were right but you were ,also, wrong too ! i will explain

get this mission:
http://speedy.sh/mMadn/TEST-SENSORS-...YDROPHONES.rar

drop it in your MODS folder and enable.
you will see two new single missions called as ''Fletcher - 400'' and ''Fletcher - 400 - 2''
at ''Fletcher - 400'' the Fletcher will pass at 400m in front of you and
at ''Fletcher - 400 - 2'' the Fletcher will pass at 400m on the starboard side. (as BigWallEye suggested)

at both missions the Fletcher is equiped ONLY with hydrophones ( specifically, with a type QClP ). don't raise your periscope as it will be spotted (Fletcher is allready too close and it is impossible ,through cfgs, to discard the ai-visuals). don't do anything, just wait for Fletcher to pass by.

now, why i said that you are right and wrong at the same time?

if you run the missions on STOCK sh3 everything works perfect on hydrophones and ,as long as you are silent , the Fletcher is not detecting you.
if you run the missions on gwx or nygm or wac (lsh3 is ok) ,the Fletcher is always detecting you ,through its hydrophones, although you are absolutely silent. so , i am guessing that you are a user of gwx or nygm or wac.

after a little search,i found that the cause of these anomalies at hydrophones are the settings of hydrophones at sim.cfg file. by setting to sim.cfg the STOCK hydrophone settings everything worked like a charm to all supermods (gwx,nygm and wac. LSH3,as i said, has not this problem).

the stock values that work ok are:
[Hydrophone]
Detection time=1 ;[s]
Sensitivity=0.03 ;(0..1)
Height factor=0 ;[m]
Waves factor=0.5 ;[>=0]
Speed factor=15 ;[kt]
Noise factor=1.0 ;[>=0]


once you use the above settings:
at some of your tests , challenge with the Fletcher by starting your engines.when you are detected ,play with the throttle and you will see that Fletcher immediately is loosing you ,especially when you stop the engines.(remember ,this Fletcher is equiped only with hydrophones).


edit:
i forgot something very critical and this is the ''Rig for silent running'' order.
with this order enabled , your boat is not detected by Fletcher's hydrophones ,as long as you keep silent, at all supermods too. so, maybe, the modders of supermods's sensors have that in mind when they were adjusting their
hydrophone settings.
the boat ,even with stopped engines is a little noisy (repair works-torpedo loadings..etc) and this is what is detecting Fletcher's hydrophones.
at the above missions ,if you enable the ''Rig for silent running'' order, you will see that Fletcher's hydrophones are not detecting you, so my final conclusion is that supermods wanted it to be that way
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Last edited by makman94; 11-02-14 at 11:19 AM.
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