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
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
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 |