When do the Allies get surface radar?

[K-61]

I know the answer might be buried in a manual or somewhere but I'm hoping for a quick reply. I'm now in Sept. 1941 and at some point I'm going to come up against it. What sort of ranges do the escort radars have in SH3?

[U777]

I'd like to think maybe around the same time we do, as for range it should be a bit longer because warships can carry bigger and more powerful equipment. A U-boat is probably detectable within 5 miles.

[HW3]

HMS Vanoc had a early radar set on 17 March 1941 when she detected U-100 on the surface in heavy fog, after she and HMS Walker had damaged it in a depth charge attack. HMS Vanoc chased U-100 down, ramming it, and sinking it.

[Kapt Z]

I know the answer might be buried in a manual or somewhere but I'm hoping for a quick reply. I'm now in Sept. 1941 and at some point I'm going to come up against it. What sort of ranges do the escort radars have in SH3?

Not sure exactly what date it becomes widespread, but I start worrying about it in '41.

Don't know ranges. Maybe 15 km?

[JEuler]

In early April '41 I've received a convoy report near Rockall Bank.The weather was very bad 15m/s wind and heavy rain,so I tried to shadow the convoy and wait for better conditions,when my watch crew spotted a corvette heading straight for us.Ordered crash dive,and they started depth charging me,but no hit.I got back to periscope depth and when the corvette gone out of sight surfaced.I thought we can escape easier because of the bad weather and it was night.But soon once again ship spotted,crash dive,depth charging,but no surfacing this time.When they lost contact I stayed submerged for a another 1 or 2 hours.After surfacing tried to get further away from the convoy and follow their course from a safer distance.A few hours later,once again ship spotted...

That little bugger was already equipped with radar and they easily find me in the heavy rain and fog.

If in real life was march '41 when the first escorts was equipped witch radar,I'm pretty sure GWX modeled it in the game,and I can confirm that.

@K-61 your sailing in dangerous waters.Get a radar detector as soon as it is available.

[K-61]

Thanks for all of your replies. I tried twice to intercept a convoy in bad weather in the spring of '41 and was twice set on by a corvette that came straight at me out of a bank of filthy weather. After the second occurrence I twigged to the notion that he probably had radar and I broke off contact with that convoy. In my current patrol, Sept. '41 I have not yet intercepted a convoy. Radar detectors are not yet available for my boat [VIIC] but I did just upgrade to Alberich, better batteries and hydrophones. At this stage of the war I am not trying anymore to make surface attacks on convoys in low visibility conditions.

[Snestorm]

In early April '41 I've received a convoy report near Rockall Bank.The weather was very bad 15m/s wind and heavy rain,so I tried to shadow the convoy and wait for better conditions,when my watch crew spotted a corvette heading straight for us.Ordered crash dive,and they started depth charging me,but no hit.I got back to periscope depth and when the corvette gone out of sight surfaced.I thought we can escape easier because of the bad weather and it was night.But soon once again ship spotted,crash dive,depth charging,but no surfacing this time.When they lost contact I stayed submerged for a another 1 or 2 hours.After surfacing tried to get further away from the convoy and follow their course from a safer distance.A few hours later,once again ship spotted...

That little bugger was already equipped with radar and they easily find me in the heavy rain and fog.

If in real life was march '41 when the first escorts was equipped witch radar,I'm pretty sure GWX modeled it in the game,and I can confirm that.

@K-61 your sailing in dangerous waters.Get a radar detector as soon as it is available.

Modded, but without GWX, I encounter the same kind of problem with escorts, beginning in spring 1941. The ex-USN four stackers seem to get early, and know well how to use it.
(Clemson Class). And they are Very Fast!