SUBSIM Radio Room Forums - View Single Post - Realism- and gameplay-related hardcode fixes for SH3.EXE

Silent Ace · 12-28-10, 10:53 AM

Submarines in World War I remained under water, 50-10% of total time spent on the combat mission.
During World War II, this time increased to 30-35%.
Record time remaining in the submerged condition for WW2 reached the German submarine U-258 (Type 7C) and it is 38 hours.
Other times the length of stay under water a submarine U-744 (Type 7C) and it is 30 hours.
Recall that the 33 surviving crew of 55 on the U.S. Squalus the time of the accident had reserves of oxygen for up to 48 hours but were rescued within 39 hours of the sinking. Link-http://www.lostliners.com/Peril/squalus.html
59 crew members of HMS Thetis had available air for 36 hours stay under water but that the total number of crew and guests on the submarine was 103 men at two times higher than normal, the amount of available oxygen is reduced to only 18 hours. Link-http://www.angelfire.com/co3/submarinethetis/thetis.htm
Apparently the 50 crew members of the Soviet submarine L-271 submerged in theautumn of 1941 in the Baltic Sea survived 50 hours inside their submarine before they were all suffocated .
But on this case does not have enough data.
Time periods of stay under water at the first postwar Soviet submarine project PR.613 Whiskey which is a direct descendant of the German Type 21 is 200 hours with the use of chemical substances (mixture of calcium oxide and sodium hydroxide or lithium hydroxide) for the regeneration air. Link-http://militaryrussia.ru/blog/topic-203.html
If they did not regenerate the air on the USS Pennsylvania (SSBN 735) oxygen would be for 7 days under water.
One man during an hour is in need of 25-28 liters of oxygen and exhales 22-25 liters of CO2.
The content of CO2 in the air section should not be higher than 1-1,5% and O2 can not be less than 18% and not more than 24%.
When these standards in the free space of 2 m3 of a man cut CO2 concentration is reached within one hour.
Conclusion is that you first need to eliminate CO2 from inside the submarine, but need to renew the content of O2 in the atmosphere submarine acceptable 20-21% in order to extend the continuous stay of the crew diesel submarines under the water with the normal 38-48 hours at a respectable 72-80 hours or longer .

Cheers!

12-28-10, 10:53 AM	#760
Silent Ace Seaman Join Date: Feb 2010 Posts: 36 Downloads: 64 Uploads: 0	Submarines in World War I remained under water, 50-10% of total time spent on the combat mission. During World War II, this time increased to 30-35%. Record time remaining in the submerged condition for WW2 reached the German submarine U-258 (Type 7C) and it is 38 hours. Other times the length of stay under water a submarine U-744 (Type 7C) and it is 30 hours. Recall that the 33 surviving crew of 55 on the U.S. Squalus the time of the accident had reserves of oxygen for up to 48 hours but were rescued within 39 hours of the sinking. Link-http://www.lostliners.com/Peril/squalus.html 59 crew members of HMS Thetis had available air for 36 hours stay under water but that the total number of crew and guests on the submarine was 103 men at two times higher than normal, the amount of available oxygen is reduced to only 18 hours. Link-http://www.angelfire.com/co3/submarinethetis/thetis.htm Apparently the 50 crew members of the Soviet submarine L-271 submerged in theautumn of 1941 in the Baltic Sea survived 50 hours inside their submarine before they were all suffocated . But on this case does not have enough data. Time periods of stay under water at the first postwar Soviet submarine project PR.613 Whiskey which is a direct descendant of the German Type 21 is 200 hours with the use of chemical substances (mixture of calcium oxide and sodium hydroxide or lithium hydroxide) for the regeneration air. Link-http://militaryrussia.ru/blog/topic-203.html If they did not regenerate the air on the USS Pennsylvania (SSBN 735) oxygen would be for 7 days under water. One man during an hour is in need of 25-28 liters of oxygen and exhales 22-25 liters of CO2. The content of CO2 in the air section should not be higher than 1-1,5% and O2 can not be less than 18% and not more than 24%. When these standards in the free space of 2 m3 of a man cut CO2 concentration is reached within one hour. Conclusion is that you first need to eliminate CO2 from inside the submarine, but need to renew the content of O2 in the atmosphere submarine acceptable 20-21% in order to extend the continuous stay of the crew diesel submarines under the water with the normal 38-48 hours at a respectable 72-80 hours or longer . Cheers! Last edited by Silent Ace; 12-29-10 at 10:47 AM.