RE: FT: Missiles and Gas Tanks

Randy Campbell writes:

@:) > Last I heard torpedoes tended to be rocket powered (at least
@:) > some of them)

@:) I'd have to ask about this, but all the torps in the current US =
@:) inventory I know of are "steam turbine powered" propellers.

  Ok, I can believe this.  I've been thinking more and more that it
was an experimental Soviet torpedo I was thinking of and not standard
issue.

@:) Ranges sound about right, but a rocket under water wil burn out =
@:) faster than a miissle engine, due to increased drag.

  That's true.	They were using a rocket to spin a propeller, though,
not to push the torpedo directly.

@:) > Missiles, being small and expendable and needing to travel only
@:) >a short distance, might be able to use more volatile fuels ...
@:) 
@:) Again using todays missles for example, volitile fueled munitions
@:) is the LAST THING you want stored in magazines on your war ship.

  I guess that's true.	High-efficiency might have been the phrase I
was actually looking for.

@:) There are currently several hiigh efficaincy liquid fuels
@:) availible for missle engines, but we still use mostly solids due
@:) to the stability of it.

  First, don't ICBM's use liquid fuels?  And presumably cruise
missiles use some kind of jet fuel.  But second, I actually thought
solid fuels were more efficient than liquid fuels, which would explain
why they're used, for example, in the Shuttle SRBs.  You can't turn
them off is (I thought) the biggest problem.

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  Uh, OK.

-joachim