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Thanks, Frank!   I can see that with most of Russia's ocean access being 
pretty far north, windowed refuges inside the sail would be pretty 
welcome when on the surface..

Lu

frankreed@HistoricalAtlas.com wrote:
> Lu, you wrote:
> "I've seen photos where it looks very much like there are windows in the sail."
>
> You'll find these on older US subs, too. The open cockpit at the top of the 
sail is used for coastal piloting. Somebody has to stand up there. There was 
often a plastic windscreen. Since it might be miserable weather, designers 
sometimes provided a protected station, with windows, inside the sail. Only 
fish look through those windows when the ship is submerged. The sail floods.
>
> You can see windows at the top of the sail on USS Growler here:
> http://en.wikipedia.org/wiki/File:USS_Growler_SSG-557_.jpg
> Growler was launched in 1958. There's no conning tower inside the sail. 
> More windows on USS Requin:
> http://www.hnsa.org/ships/requin.htm
> Requin was a typical WWII fleet sub, launched in 1945 and modified to "fleet 
snorkel" configuration with a nearly square "North Atlantic sail" in 1959. 
There is a conning tower inside occupying about half the length of the lower 
third of the sail. That does not flood (normally) when the sub is submerged. 
>
> The only US Navy sub that I am aware of that has "windows" below the 
waterline is the exotic nuclear mini-sub NR-1 (it has wheels, too). It's also 
quite possible that one or more of the "spy" subs (Halibut, Parche, Jimmy 
Carter) had or have some underwater viewing portholes.
>
> -FER
>
>
>
> >
>   

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