Re: Minesweeper hulls and speed

[MerlinSub@t-online.de (Carsten Standfuß)]

Carsten from Germany

Dear Michael

I made no calculations, this numbers are given from a tank test of a 
Delphin (Dolphin) midget (Germany 1944). The Delphin ( L = 5,48 m , 
B = 1,0 m, Displ. = 2,664 / 2,8 m3)  has the same size and hull
parameter than the minesweeper hull. You found a little more information
in WWW.U-boat.net and than midgets. 

Source: Unterseeboote und Torpedos mit Kreislaufantrieb
	(Submarines and Torpedos with closed circle diesel)
	Kiel 1969 by K.H.Kurzak and E.Rößler
        page 141 : Power curves for Delphin Midget after tank test.
	Test runs 24/25.07.-1944

3 Units (with E-torpedo-engine) build 
runs 17 kn with 42 hp (underwater) .

(my first sub-drawing - I was 9 years old - based on this midgets, 
I made it smaller in scale and human powered driven - made also the
workshop drawings in 1:1 but never build it...) 	

Michael B Holt schrieb:
> 
> On Sat, 21 Aug 1999 20:21:38 +0200 Carsten Standfuß writes:
> >hello submadmans,
> 
> Hey, I think "submadmans"!   It says so much so well!
> 
> >some calculation about the speed of the minesweeper hulls:
> 
> How did you do these calculations?    What's the algorithm?
> 
> Mike Holt