Technology and Operations  
This forum is for discussing technological & operational matters pertaining to U-boats. 
Re: Max dive plane setting
Posted by: Rainer Bruns ()
Date: November 17, 2002 03:11PM

Hi Joe,
30 to 35 degrees sounds about right, but primarily for a different reason than stated by you. A hydoplane essentially is nothing but a rudder with a horizontal axis. As a general rule you can assume, that all rudders start to "stall" (create turbulance and loose steering efficiency) at angles greater than above. Even the lastest NACA foil shaped spade rudders. Same as an airplane wing. Angles beyond just make a great sea anchor out of the rudder, before the forces break it shaft. :-))) Rgds, RB

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Subject Written By Posted
Max dive plane setting Drebbel 11/17/2002 09:45AM
Re: Max dive plane setting joe brandt 11/17/2002 02:19PM
Re: Max dive plane setting Rainer Bruns 11/17/2002 03:11PM
Re: Max dive plane setting Tony Smith 11/18/2002 02:36PM
Re: Max dive plane setting Rainer Bruns 11/18/2002 03:39PM


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