[Aktungbby]

PsychoticCaptain! good questions; A PM to THEBERBSTER himself might be useful. He's scarce these days, but will respond. As for underwater depth speed at periscope depth, 3-4 knots is about it. Not only does it save batteries, but in real combat in WWII, any higher speed would cause a raised periscope to vibrate; hampering viewing calulations on TDC, and possibly causing seawater leakage into the scope or creating a visible wake giving away your position to escorts. A Baleo class('44-'45) boat had 126 Sargo cells in 2 'banks', each cell in series weighing approx. 1650 lbs. ie: 207,900 total weight for 2740 horsepower to 4 Elliot or GE electric motors on two shafts.