What's this hole in the conning tower for?

Sirrvs · 05-12-21, 08:15 AM

I thought it was weird to have a hole for the Naxos since it's not even available yet in June 1940, but I found another clue as to what this is when I dove to periscope depth and looked at it:

Appears to be some kind of radio antenna that extends when you dive and retracts when you surface.

Aktungbby · 05-12-21, 12:07 PM

ALL I see is:

on both of your posts

Sirrvs · 05-12-21, 12:40 PM

Quote:

Originally Posted by Aktungbby

ALL I see is:

on both of your posts

Thanks so much for letting me know! I had no idea my image hosting wasn't working for anyone except me (because I was logged in). Anyway, I've set up an Imgur account and edited the screenshots above so they should be visible now.

Aktungbby · 05-12-21, 03:15 PM

Quote:

Originally Posted by Sirrvs

I thought it was weird to have a hole for the Naxos since it's not even available yet in June 1940, but I found another clue as to what this is when I dove to periscope depth and looked at it:

Appears to be some kind of radio antenna that extends when you dive and retracts when you surface.

BETTER! now show it with the antenna raised?? My old eyes cannot see anything! Meanwhile traveling back in time I found this required reading!

http://www.silenthunter.cz/tgw/Manual_V3.0_Final.pdf Sections A5--A15... all in one site location!

And you're right about the naxos, I mislabelled the U-952 antenna: it also is the 'Bali"...

Sirrvs · 05-12-21, 07:03 PM

Haha, sorry, I know it's hard to see due to the murky water and the image compression. I've circled it here, but it basically looks like a thin straight antenna like you'd see on a car in the 80s/90s:

As I'm finding out, pictures of these German antennas and detectors are rare!

propbeanie · 05-12-21, 08:49 PM

Top-secret hush-hush, we'd-have-to-kill-you kind of stuff most likely wiped-out by the sensors - er censors

(sorry, won't happen again, until the next time) back then. Look at most of the US sub pics from then, and they "erased" the radars usually from the pics. Finding info on Japanese subs is even more difficult.

Aktungbby · 05-13-21, 10:37 AM

I seem to recall that a Uboat could still transmit radio messages while at periscope depth, using Nauen and later Goliath transmission systems; I wonder if that's not a just an antenna for one of those two systems??

But, at least I now do know we need a new mod to mount the radar detection receiver on a raised schnorkel head!!

Aktungbby · 05-13-21, 07:44 PM

ALL this has triggered my interest especially since Bubblehead cannot do a Real life periscope depth radio transmission in SH IV. https://www.subsim.com/radioroom/sho...04&postcount=1 and is looking for a file to extend the radio antenna length.... But what a really cool mod would be for later in the German career modes is this imho:

The schnorkel with the radar detector attached!

Sirrvs · 05-14-21, 06:46 AM

Quote:

Originally Posted by Aktungbby

ALL this has triggered my interest especially since Bubblehead cannot do a Real life periscope depth radio transmission in SH IV. https://www.subsim.com/radioroom/sho...04&postcount=1 and is looking for a file to extend the radio antenna length.... But what a really cool mod would be for later in the German career modes is this imho: The schnorkel with the radar detector attached!

That would be a cool upgrade. Aha, there we go! The antenna circled in green is what seems to pop out of the hole when submerged, although it's in a different location on the conning tower:

I think you're right. Probably an improved radio antenna for communicating when submerged.

05-12-21, 08:15 AM	#1
Sirrvs Loader Join Date: Sep 2002 Location: Montreal, Canada Posts: 81 Downloads: 38 Uploads: 0	I thought it was weird to have a hole for the Naxos since it's not even available yet in June 1940, but I found another clue as to what this is when I dove to periscope depth and looked at it: Appears to be some kind of radio antenna that extends when you dive and retracts when you surface. Last edited by Sirrvs; 05-12-21 at 12:39 PM.

05-12-21, 12:07 PM	#2
Aktungbby Gefallen Engel U-666 Join Date: Jul 2013 Location: On a tilted, overheated, overpopulated spinning mudball on Collision course with Andromeda Galaxy Posts: 30,052 Downloads: 24 Uploads: 0	ALL I see is: on both of your posts __________________ "Only two things are infinite; The Universe and human squirrelyness?!!

05-12-21, 08:49 PM	#6
propbeanie CTD - it's not just a job Join Date: May 2016 Location: One hour from Music City USA! Posts: 10,106 Downloads: 451 Uploads: 2	Top-secret hush-hush, we'd-have-to-kill-you kind of stuff most likely wiped-out by the sensors - er censors (sorry, won't happen again, until the next time) back then. Look at most of the US sub pics from then, and they "erased" the radars usually from the pics. Finding info on Japanese subs is even more difficult. __________________ "...and bollocks to the naysayers" - Jimbuna

05-13-21, 10:37 AM	#7
Aktungbby Gefallen Engel U-666 Join Date: Jul 2013 Location: On a tilted, overheated, overpopulated spinning mudball on Collision course with Andromeda Galaxy Posts: 30,052 Downloads: 24 Uploads: 0	I seem to recall that a Uboat could still transmit radio messages while at periscope depth, using Nauen and later Goliath transmission systems; I wonder if that's not a just an antenna for one of those two systems?? But, at least I now do know we need a new mod to mount the radar detection receiver on a raised schnorkel head!! __________________ "Only two things are infinite; The Universe and human squirrelyness?!! Last edited by Aktungbby; 05-13-21 at 10:50 AM.

05-13-21, 07:44 PM	#8
Aktungbby Gefallen Engel U-666 Join Date: Jul 2013 Location: On a tilted, overheated, overpopulated spinning mudball on Collision course with Andromeda Galaxy Posts: 30,052 Downloads: 24 Uploads: 0	ALL this has triggered my interest especially since Bubblehead cannot do a Real life periscope depth radio transmission in SH IV. https://www.subsim.com/radioroom/sho...04&postcount=1 and is looking for a file to extend the radio antenna length.... But what a really cool mod would be for later in the German career modes is this imho: The schnorkel with the radar detector attached! __________________ "Only two things are infinite; The Universe and human squirrelyness?!! Last edited by Aktungbby; 05-13-21 at 07:55 PM.

05-12-21, 07:03 PM	#5
Sirrvs Loader Join Date: Sep 2002 Location: Montreal, Canada Posts: 81 Downloads: 38 Uploads: 0	Haha, sorry, I know it's hard to see due to the murky water and the image compression. I've circled it here, but it basically looks like a thin straight antenna like you'd see on a car in the 80s/90s: As I'm finding out, pictures of these German antennas and detectors are rare!