Why have 2 periscopes?

[Sailor Steve]

Originally Posted by 4saken

I always use the attack periscope because of the x10...You are actually saying that with the observation periscope you can see further?

Originally Posted by kaleun69

Ahh nice that actually having 2 scopes is modeled in SHIII. However they semed to have reversed the funtions lol.. the attack parascope has a x10 zoom, the observation only x4.5 zoom.

On this topic, what orders of magnification did uboat periscopes actually have? Thought I read that it was less than x10.

Stock SH3 has the observation periscope set to x1 and x4, and the attack periscope set to x1.5 and x6. The latter is the proper setting for all real-life periscopes, at least for the Germans and the Americans. GWX made the attack 'scope go to x10 just so you could read the flags from a greater distance. I use Hitman's mod which gives the correct optics to both 'scopes and the UZO.
http://www.subsim.com/radioroom/down...o=file&id=1519

Also, I read somewhere that a sub couldnt go more than 5 knots with the perisope up and have it be usable due to vibration. Is that true?

Yes it's true. It is my understanding that the acceptable limit is 3 knots.