Sidney Greenstreet wrote:

That's right! People are discussing technical sailing issues and learning!
Metallurgy, sails, forces, rocket planes - it's all here folks.

Betcha didn't know about torsionally pre loaded propeller shafts - they
triple the life of your transmission by absorbing the shock of shifting into
gear. They also reduce cavitation!

No, I didn't know that.... BTW how do you "torsionally pre load" a shaft, keep a
brake on it until 100% load is reached? Doesn't sound too practical. And I think
that if anything, a torsionally pre loaded shaft would exaggerate cavitation &
shock loading on the tranny.



Can't use them on rocket planes because
they have no transmissions. But if they did, they'd be swell!

Another handy tip - use leather gaskets on your liquid oxygen systems!

Sounds like a good way to have a very dramatic fire.



Next lesson - predict the tides with an octant!

What happens when the octopus' big brother comes along to get it back?

You're a hoot Gilly, please stick around.

DSK

"DSK" wrote in message
...
Sidney Greenstreet wrote:

That's right! People are discussing technical sailing issues and
learning!
Metallurgy, sails, forces, rocket planes - it's all here folks.

Betcha didn't know about torsionally pre loaded propeller shafts - they
triple the life of your transmission by absorbing the shock of shifting
into
gear. They also reduce cavitation!

No, I didn't know that.... BTW how do you "torsionally pre load" a shaft,
keep a
brake on it until 100% load is reached? Doesn't sound too practical. And I
think
that if anything, a torsionally pre loaded shaft would exaggerate
cavitation &
shock loading on the tranny.

Make the shaft out of a spring!





Can't use them on rocket planes because
they have no transmissions. But if they did, they'd be swell!

Another handy tip - use leather gaskets on your liquid oxygen systems!

Sounds like a good way to have a very dramatic fire.

Explosion, not fire!




Next lesson - predict the tides with an octant!

What happens when the octopus' big brother comes along to get it back?

You're a hoot Gilly, please stick around.

I'm just warming up.


DSK

.... BTW how do you "torsionally pre load" a shaft


JoAnn Castle wrote:
Make the shaft out of a spring!

That would not "torsionally pre load" the shaft, but it would provide a torsion
buffer or shock absorber if you prefer the term.




Sounds like a good way to have a very dramatic fire.

Explosion, not fire!

That's what I said.

An explosion is simply a very dramatic fire.

BTW many kinds of hair conditioner, mousse, etc etc, will react 'dramatically'
in the presence of medical oxygen. Beware when taking a loved one with a fancy
hair-do to the emergency room!

DSK

"DSK" wrote in message
...

BTW many kinds of hair conditioner, mousse, etc etc, will react
'dramatically'
in the presence of medical oxygen. Beware when taking a loved one with a
fancy
hair-do to the emergency room!

DSK

Doug,

My sincerest thanks, I can never repay you fully for this timely, life
saving advice . As you may know, I insist that Mrs Gilligan wear a 2 foot
tall beehive hairdo at all times. My heart would break at the sight of that
towering inferno. Should a medical emergency arise, I shall refrain from
taking the Missus to the emergency room.