Technology and Operations
This forum is for discussing technological & operational matters pertaining to U-boats.
RE: U-995 Type VIIC/41 Rudders
Posted by:
Rainer Bruns
()
Date: October 07, 2000 11:14PM
Hi Max, Jeff and Joe,
If you guys are absolutely certain that these somewhat enlarged rods ending up at thebottom of the rudderstock are there to support the rudders, I will not stand corrected with reluctance maintain a lot of doubt about your explanations. I always thought (and I do not recall, which of my elderly Uboat friends told me so decades ago) ,that this contraption with the big strut under the aftship keelson is a left-over from the design, which included the fwd netcutters. I.e: the thinking went, if the sub broke a big enough hole in the net, they did not want her to get hung up on the screws and the rudders once 7/8 through the hole. That is, why I always referred to these things as propeller guards. When the fwd. cutters were discontinued in '41inertia kept building the rear part, which added a lot of turbulance (speak noise). I guess the Norwegians cut away that whole mess on U995. Joe, I sincely doubt you had tip flutter on the rudders at hard over on full ahead. Take a second look at U995's pics on this site. The is a closeup shot showing clearly how strongly the were built. Cheers guys, RB
If you guys are absolutely certain that these somewhat enlarged rods ending up at thebottom of the rudderstock are there to support the rudders, I will not stand corrected with reluctance maintain a lot of doubt about your explanations. I always thought (and I do not recall, which of my elderly Uboat friends told me so decades ago) ,that this contraption with the big strut under the aftship keelson is a left-over from the design, which included the fwd netcutters. I.e: the thinking went, if the sub broke a big enough hole in the net, they did not want her to get hung up on the screws and the rudders once 7/8 through the hole. That is, why I always referred to these things as propeller guards. When the fwd. cutters were discontinued in '41inertia kept building the rear part, which added a lot of turbulance (speak noise). I guess the Norwegians cut away that whole mess on U995. Joe, I sincely doubt you had tip flutter on the rudders at hard over on full ahead. Take a second look at U995's pics on this site. The is a closeup shot showing clearly how strongly the were built. Cheers guys, RB
