![]() |
SUBSIM: The Web's #1 resource for all submarine & naval simulations since 1997 |
|
![]() |
#1 | |
Silent Hunter
![]() Join Date: Apr 2002
Location: standing watch...
Posts: 3,856
Downloads: 344
Uploads: 0
|
![]() Quote:
__________________
![]() |
|
![]() |
![]() |
![]() |
#2 | |
Ocean Warrior
![]() Join Date: Dec 2010
Location: Montreal, Canada
Posts: 2,776
Downloads: 833
Uploads: 11
|
![]() Quote:
![]() ![]() ![]() so can you point me where to read some inf about UZO to see what was for real? |
|
![]() |
![]() |
![]() |
#3 | |
Silent Hunter
![]() Join Date: Apr 2002
Location: standing watch...
Posts: 3,856
Downloads: 344
Uploads: 0
|
![]() Quote:
There was nothing magical about the UZO. It was a simple pair of binoculars strapped to a fixed point. No rangefinding mechanism, although you could send the bearing. If you look at the photos I posted above, the UZO was fixed with a large axis on each side so you could pivot it up and down and keep a ship fixed even though the U-boat's bow was going up and down. However, since the "stabilizing" was done by the crewman, it would not work in very heavy seas. Furthermore, there is no stabilizing whatsoever for waves coming from the side. Now let's look at the periscope. True, there is no stabilizing mechanism whatsoever, but that is because you don't need one. A sub underwater at 45-60 feet is much less affected by surface waves, so less side to side movement than if it is on the surface. In respect of fore and aft movement, you have the entire 220+ feet length of the hull underwater acting as a stabilizer, so little movement that way either. so, you have two options, either of which can be seen as correct: 1. scope stabilized, UZO not stabilized; 2. scope stabilized, UZO stabilised; options 1 and 2 are already available in all SH games. however option 3: scope not stabilized, UZO stabilized is not historically correct.
__________________
![]() |
|
![]() |
![]() |
![]() |
#4 |
Silent Hunter
![]() |
![]()
I agree with these posts:
http://174.123.69.202/~subsimc/radio...40&postcount=6 3rd post from above: http://forums.ubi.com/eve/forums/a/t...2/m/8311049103 and my sources in my historical books ! ![]() Best regards, Magic |
![]() |
![]() |
![]() |
#5 | ||
Eternal Patrol
![]() |
![]() Quote:
Again he makes a claim with no verification at all. It's worthless. Quote:
__________________
“Never do anything you can't take back.” —Rocky Russo |
||
![]() |
![]() |
![]() |
#6 |
Navy Seal
![]() |
![]()
I have been thinking about how this could work.
When you are standing on the deck of a boat travelling forward, there is a lot of motion up and down as the boat pushes through a wave. (more so than side sway) Now if I am used to standing on this deck (sea legs) I can sway with the movement of the boat. So my head is always parallel to the sea. If I had a stick in front of me that was free moving forward and back and fixed to deck, I could hold this against myself and continue my sway. So I become the stabilizer. If this was binos and could also pivot at the head - perhaps a steady view could be achieved. Last edited by Trevally.; 03-03-11 at 01:27 PM. |
![]() |
![]() |
![]() |
#7 | |
Silent Hunter
![]() Join Date: Apr 2002
Location: standing watch...
Posts: 3,856
Downloads: 344
Uploads: 0
|
![]() Quote:
![]() By captain_joch at 2011-03-02 ![]() By captain_joch at 2011-03-02 the crewman is leaning against the pedestal and can keep the UZO aimed at the horizon just by standing up or crouching down. Since a boat will usually head into waves, side motion should not normally be a factor. Should be fairly easy to keep the image level, except in rough seas.
__________________
![]() |
|
![]() |
![]() |
![]() |
#8 | |
Lieutenant
![]() Join Date: Nov 2006
Location: St. Petersburg, Russia
Posts: 264
Downloads: 72
Uploads: 0
|
![]() Quote:
Regarding cushinong - it doesn't affect stabilization at all, just remember that regular binoculars are also cushioned - by your hands and body, they are soft, remember? So: neither UZO nor scopes/gun were stabilized in U-boats. The scopes are, however, naturally more 'stable' since the boat is submerged when using scopes and hence much more stable. Regarding split-image stadimiter - AFAIK neither scopes nor UZO had it in the U-boats. You had to use mil marks and your best judgement from experience. |
|
![]() |
![]() |
![]() |
#9 | |
Silent Hunter
![]() |
![]() Quote:
![]() So, I asked a former submarine driver of german Navy (Bundesmarine) in my german ubi-forum and he answerded me the following (I´ve translate his answer via google, because my english is not so good): Please look first this picture: http://www.u-995.com/images/galerie/...kenwanne02.jpg and then read his answer: "In the pictures of the bridge when can we see the column of the torpedo target device or the UZO base very well. The upper range (ie where the UZO is placed), is from the surrounding ring with the degree numbers must be clearly separated. Somehow reminds me of the process with the support of a magnetic compass, which is indeed suspended freely to compensate for the ship's movements. This makes sense since the UZO was indeed used in case of water attacks, so a submarine, even at low wave heights ever is rocked by something stronger. It would therefore only logical that a telescopic sight would be stabilized in accordance." Best regards, Magic ![]() |
|
![]() |
![]() |
![]() |
#10 | |
Lieutenant
![]() Join Date: Nov 2006
Location: St. Petersburg, Russia
Posts: 264
Downloads: 72
Uploads: 0
|
![]() Quote:
In such a situation I doubt that anyone would dare even to approach such a device forget continuosly keeping it close to your eyes or risk to be hit by it. I agree with Trevally that the only stabilization that could be obtained was through our operator's human innate ability to stay upraight even on swinging deck. But as Bilge_Rat said 'stabilized' option is already very much like that now. |
|
![]() |
![]() |
![]() |
#11 | |
Eternal Patrol
![]() |
![]() Quote:
How was it done? Gyroscopic stabilization of rangefinders was barely being experimented with on American battleships in 1945. If the gunsights on a battleship didn't have this, how did a pair of binoculars mounted to a stand on a submarine have it? We have accurate drawings of how the fixed-eyepiece periscope from U-570 worked, and complete descriptions and drawings of the workings of the US periscopes, yet no mention is made of this wonderful device in any source I've seen. It's not about "points for me", or for you. It's about what is known. If someone can show me that this was done, and how I'll change my attitude so fast you won't even see it happen. I would love if this were so, but I've never seen even the slightest evidence, other that what someone wishes or assumes would make sense.
__________________
“Never do anything you can't take back.” —Rocky Russo |
|
![]() |
![]() |
![]() |
|
|