Trying to be sneaky

[Nexus7]

Hello, two questions:
1. why put in relation ship's speed and water temperature?
2. what is the undesider behaviour if the TA sinks below the layer?
Thank you

[p7p8]

1) it doesn't matter
2) No. Sometimes this is your deliberate action (for example on surface unit).

When i want to "look" under layer i have to stream TA to almost maximum lenght. Also speed of my boat should be not too high. During game i often change depth of TA antenna.

[Nexus7]

Hello p7p8, thank you for your answer but I know that. The two questions remain and arose reading the prior posts in this thread. Water temperature will be related to SSP ok, but still... Theorically the TA can run into unwanted place like enemy ships/subs propellers or similar but I don't think that's what FPSSchazly was addressing.
1. why put in relation ship's speed and water temperature (in regards of TA usage)?
2. what is the undesired behaviour if the TA sinks below the layer?
Thank you

[p7p8]

I think FPSchazly had in mind that if you want to search above layer but your speed is too low, TA can sink benath layer and this is undesired for your action.
(if you miss moment when TA goes under layer).

[FPSchazly]

Yes, it's only undesired if you weren't planning for it to go underneath the layer or if you didn't know it could go beneath the layer.

In relation to temperature, I believe Lanzfeld was referring to the game Cold Waters and not water with low temperatures.

To clarify the responses in regards to TA sinking bellow the layer when you're searching above, the downside is that the sonar returns are heavily influenced by what kind of layer it actually is.
For example, you could be looking for a surface threat, and not detect it until very close, because your TA was dipping bellow the layer and the sound from the surface getting to your TA bellow the layer was muffled (when the SSP is higher above the layer then bellow).

There are a number of layers with different properties modeled in DW. So this explanation is rather simplistic.


EDIT: Actually chazly made a great video detailing what I was talking about:

[Nexus7]

I think the TA is modelled as a chain of sensors, perhaps the more sensible in the latter part of it and perhaps not, I never bothered. OTOH when it's true that streaming 1/3 of it serves almost as well as streaming the whole would be an hint in this direction. If so, when the TA is say 1/3 below the layer and 2/3 above, in the reality I would mostly get signal from below (by say 90%?). If so yes, one better knows where the tail of is TA is