[Robert A Cook PE]

Air still does that when you run the diesel on the nukes: Lot of people think the snorkel provides air to the diesel -> actually, it dumps air into the general fan room, only a little bit, if any, some of which goes directly to the diesel.

The diesel actually pulled combustion air directly from the diesel room (AMR) on 688's, and the snorkel dumped makeup air into the sub as a whole. If the DOOW dunked the snorkel mast, everybody would suck vacuum until he got it back up again. To pull smoke or fumes (in a drill for example) from some compartment, you'd line up vent valves from that compartment so the AMR would pull it's air into the diesel, burn it, and pass the junk overboard.

Deepest we got was 90+ feet with the diesel still (trying to) run. CO was pissed!

(Best I can tell from tracing vent ducts, valves, and AMR lineups on the WWII boats and German boats, the older diesels worked the same way.

[SS Guy]

WW II US boats didn't have snorkles. The Germans did and I really don't know the piping or line up for them.

The Snorkle boat I was on sucked air into the main induction piping and ran it aft to the Fwd and Aft enginerooms. There the enginroom inboard inducton valves were opened, (32 turns done manually), these were 30" ID pipes. Air was still pulled from other places in the boat if the WTD's were still open.

No AMR's on a smoke boat just Fwd and Aft Engine rooms. Nuc I was on we had an AMS, later to be renamed an AMR. This was aft of the Reactor compartment. The "Air House" (now also called an AMR) was at the aft end of the torpedoroom. This is where the CO2 scrubber was and the COH2 burner and HiPAC's.

SS Guy

[WildTurkey]

Deepest we got was 90+ feet with the diesel still (trying to) run. CO was pissed!

I posted earlier about an EOOW that called forward wanted to know if we should load the diesel; at +400 ft / + 20 knots in transit (for the last several days)

http://www.freerepublic.com/focus/news/1316627/posts?page=688#688

[SmithL]

Deepest we got was 90+ feet with the diesel still (trying to) run. CO was pissed!

You don't have to get anywhere near that deep before the diesel does its best to suck the eardrums right out of your head. Everyone onboard would be pissed.