Re: [PSUBS-MAILIST] Hydrogen Peroxide: on to the topic of flywheels

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

"Gary R. Boucher" schrieb:
 
> The problem is the angular momentum.  The
> flywheel acts like a giant gyroscope when the vehicle tilts or relocates
> the axis of the FW.  Therefore, if their are two identical flywheels
> turning in opposite directions this effect is totally eliminated.

Really ? If you turn the axis in one or two other directions - a sub 
has all 3 axis to move, and during bad weather, wave impacts, crash
dives, ...
I think you need a cardanic suspension and bumpers for a least two axis.
And the freeway
of the cardanic should be greater that the maximum angle if the sub -
for example -
surface with the bow tank only, or swinging on a crane. 

I take a calculation some years before for CSSX for a flywheel. Looks
cheap and powerful.
A wheel with 1 m (3 ft) diameter and about 1 ft high made from tier up
steel plates and 
powered in the harbour with an electric engine up to 2000 rpm. On sea
the electric drive 
used as generator for the electric main-engine and the thrusters. 
Looks small at the first view, but than I made early calculations for
the axis,  
the journal bearing, the cardanic system and its gets bigger and bigger
- to a box about
1,5 x 1,5 x 1 Meter (about 5 x 5 x 3 feet) and this special
flywheel-desgin will be destroyed 
if the sub turns in vertical more than 45 ° 
To much power and force for an impact on a harbour- key for example.. 
Also you have to evacuate (vacum) the box and to use very good journal
bearings or you 
flywheel will lost the power over the time.

My Grandfather was electrian on a german cruiser during World War II. 
The main gyrocope on the bridge has an failture - he open the box -
press
the break-button and told the people on the bridge that he will go
himself for a break or
coffee because its needs some hours that the flywheel goes in low
rotaion and can be move
out of the cardanic box. During the time he was waiting in the galley
the 3th nautical officer 
comes up to the bridge and ask the people why the repair work has
stopped. They told
him that the electrian has say he must wait some hours. He answers
"bullshit" take the flywheel 
on the inner cardanic system and lifted it out the box. Than he turns,
died and later
they found the wheel in an other room after crossing a (steel-)wall and
a desk. 
It was a small flywheel of maybe (I don't know really - say 6 pounds).  

To the H2O2 subs question - The British Meteorite was the German Walter
boat : 
U 1407 built 1944/45, scuttled in Cuxhaven 05.05.1945, 
raised by the British and used up to 1950. Speed underwater was 21,6 kn, 
lenght was 41,5 m, displacement was 312/415 t. Plans and drawings are
available on the book-market. 

There is today a full 1:1 Walter engine plant in the shipping museum at
Bremerhaven, Germany
used for demonstration from the Walter-Werke to the navy in the sixties. 
The plant was driven from outside the machinery-bulkhead and all
instruments were also 
outside - indicates for me that a Walterplant-turbinen-room is maybe not
a place were you 
have to stay underwater..

And I will use batteries and a diesel - and maybe later use the diesel
for some 
close cycle experiments. 

Carsten