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Old 01-11-09, 02:23 AM   #24
edjcox
Engineer
 
Join Date: Apr 2005
Location: Shang Gri La
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Dive Video

Jerry Lewis once clinged to the Shears of a sub in a dive mode... Wonder if anyone knows where that sequenc could be found. Viewing it gives you a rel sense of how a Gato dives in a normal dive...


Diving is initiated by flooding a negative bouyancy tank and putting the forward and aft planes on a downward pitch. The rapidity of the dive can be increased with plane pitch, boat speed and additional negative bouyancy acquisiton by flooding..

The whole idea is to minimize the amount of compressed air needed to resurface. Subs were kept slightly positive boyancy the majority of the time fo safety reasons. In a combat dive safety is at depth so certain risks where accepted for a rapid immersion in to the safety of the deep. Blowing dray a flooded tank is costly in compressed air... Intitial surface psoition is then improved by useing the turbo blowers to fillout the bouyancy by blowing the tanks with shut valves... The whole idea of the Christmas tree is to visually see that water is able to flood and air is able to be retained on command...

Using elemnets of the boat like flooding empty forward tubes could also increase onces dive angle to get that bow down look some of the Simers are looking for...


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