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View Full Version : whats the catch with the 2 periscopes?


kv29
06-05-07, 08:19 AM
I thought the observation & attack periscopes would be different, but they are not?

As far as I know, observation periscope was bigger and more powerfull at night (better vision) while the attack perisope had a thinner profile (showing less wakes) more suitable for daylight.

Day or night, it looks the same looking through them? :hmm:

AVGWarhawk
06-05-07, 08:25 AM
They were not better at night as far as I know. The observation scope had a wider view angle. I also believe it magnified a bit better. Not sure on that one. Also, I believe it extended a bit further than the attack scope. I do not see much difference in the game either. It is what it is!

kv29
06-05-07, 08:34 AM
wider angle = more light gathering

http://www.museum.wa.gov.au/exhibitions/latestexhibits/latest.asp

http://www.usscod.org/conn.html

AVGWarhawk
06-05-07, 08:37 AM
Yes, as per the Cod sit, larger lense that benefitted gathering of more light. The Cod is a museum piece for sure. What a job they did restoring her. My project is the USS Torsk in Baltimore.

kv29
06-05-07, 08:39 AM
a mod coming our way? :p

SteamWake
06-05-07, 02:25 PM
wider angle = more light gathering

http://www.museum.wa.gov.au/exhibitions/latestexhibits/latest.asp

http://www.usscod.org/conn.html

Close.... Bigger aperature (opening) more light gathering. Field of view is actually a function of the eyepiece.

http://www.maritime.org/fleetsub/pscope/index.htm

shoot-kill-win
06-05-07, 03:16 PM
They were not better at night as far as I know. The observation scope had a wider view angle. I also believe it magnified a bit better. Not sure on that one. Also, I believe it extended a bit further than the attack scope. I do not see much difference in the game either. It is what it is!

The Attack scope raised further than the Observation scope if you look in this picture of the U.S.S. Batfish, the attack is on the left, the thinner one and the observation scope is on the right, the really thick one.
http://i148.photobucket.com/albums/s31/shoot-kill-win/DCAM0088.jpg

Sailor Steve
06-05-07, 04:21 PM
So what's the third housing; the one that's not raised? (I'd look in one of my books but they're all in storage).

shoot-kill-win
06-05-07, 05:05 PM
That is the SD radar housing, according to the Batfish's website it could be raised above water level as well.

kv29
06-05-07, 06:45 PM
so, basically a periscope is a telescope, right?
The observation periscope, having a bigger aperture should catch more light than a naked eye, so we should see more clear through it at night. At least this happens using a telescope.

Canonicus
06-05-07, 06:53 PM
a mod coming our way? :p


Already have a really good one available....courtesy of Mav87th.

See this thread...
http://www.subsim.com/radioroom/showthread.php?t=114077 (http://www.subsim.com/radioroom/showthread.php?t=114077)

Goes well with this one from l3th4l.....

http://www.subsim.com/radioroom/showthread.php?t=113551 (http://www.subsim.com/radioroom/showthread.php?t=113551)

kv29
06-05-07, 07:31 PM
a mod coming our way? :p


Already have a really good one available....courtesy of Mav87th.

See this thread...
http://www.subsim.com/radioroom/showthread.php?t=114077 (http://www.subsim.com/radioroom/showthread.php?t=114077)

Goes well with this one from l3th4l.....

http://www.subsim.com/radioroom/showthread.php?t=113551 (http://www.subsim.com/radioroom/showthread.php?t=113551)

Im there already! but Im having some problems, my scope got too big, donīt know why....

Hartmann
06-05-07, 08:36 PM
so, basically a periscope is a telescope, right?
The observation periscope, having a bigger aperture should catch more light than a naked eye, so we should see more clear through it at night. At least this happens using a telescope.

Very good point, and true...more lens diameter more light at night :yep:

daft
06-06-07, 04:11 AM
I thought the observation & attack periscopes would be different, but they are not?

As far as I know, observation periscope was bigger and more powerfull at night (better vision) while the attack perisope had a thinner profile (showing less wakes) more suitable for daylight.

Day or night, it looks the same looking through them? :hmm:

Don't know about night attacks, but using the observation scope in bad weather attacks usually helps me see better. There are some differences (in magnification too i belive), but they can be subtle. :)

FooFighters
06-06-07, 05:46 AM
I was also did not know why there were 2 scopes..
Thanks to you all !

Rhodes
06-06-07, 08:39 AM
Little off topic, I was checking the site of the USS COD, when I realize that the name of the fish that give's name to the sub is the fish that is one of the natiotal dishes of my contry. I laugh myself up!

Portuguese name of the sub "USS Bacalhau"...

kv29
06-06-07, 10:32 AM
Gato means cat in spanish, and Tambor means drumm :p

Sailor Steve
06-06-07, 10:36 AM
So what's the third housing; the one that's not raised? (I'd look in one of my books but they're all in storage).
That is the SD radar housing, according to the Batfish's website it could be raised above water level as well.
Hmm. It looked to me like the radar is on the pole attached to the back of the attack scope. Guess that's what I get for thinking.

tycho102
06-06-07, 01:03 PM
I believe the obs scope also had a pivoting head so that you could look up 45 degrees and scan for airplanes better.

Rhodes
06-06-07, 05:19 PM
Gato means cat in spanish, and Tambor means drumm :p

Gato is also cat in portuguese as tambor! But cod, besides the name of the fish, is also used for many portuguese jokes!:D

Palidian
06-06-07, 05:45 PM
Is it not nice to have a spare?

The third post is for the radar, however it seems to be broke. You should be able to operate the radar submerged. You could do that in Silent Hunter 2

Rhodes
06-06-07, 06:16 PM
Is it not nice to have a spare?

The third post is for the radar, however it seems to be broke. You should be able to operate the radar submerged. You could do that in Silent Hunter 2

In SH4 we have radar depth and can operate the radar submerged. I thinks is about 45 feet of depth or 50. Also in the one movie of US subs, Torpedo Run or Below (or none of this, since my memory begins to have a lot of failures) they extend the radar mast, when in periscope deph, to "take a look".

shoot-kill-win
06-06-07, 10:44 PM
So what's the third housing; the one that's not raised? (I'd look in one of my books but they're all in storage).
That is the SD radar housing, according to the Batfish's website it could be raised above water level as well.
Hmm. It looked to me like the radar is on the pole attached to the back of the attack scope. Guess that's what I get for thinking.

The one on the back of the scope is the SJ radar the third housing behind that is the SD radar

Reaves
06-06-07, 10:48 PM
I believe the obs scope also had a pivoting head so that you could look up 45 degrees and scan for airplanes better.


IIRC this was the case in SH3, certainly for the Kreigsmarine anyway.

Palidian
06-08-07, 02:13 AM
Is it not nice to have a spare?

The third post is for the radar, however it seems to be broke. You should be able to operate the radar submerged. You could do that in Silent Hunter 2
In SH4 we have radar depth and can operate the radar submerged. I thinks is about 45 feet of depth or 50. Also in the one movie of US subs, Torpedo Run or Below (or none of this, since my memory begins to have a lot of failures) they extend the radar mast, when in periscope deph, to "take a look".
40 feet works for me, 41 and it turns off, for a Balao.

Rhodes
06-08-07, 06:13 AM
40 feet works for me, 41 and it turns off, for a Balao.

:up: , I didn't recall the depth. I usually give the command and go to the radar station.