[AR] Re: Torpedo battery

  • From: Peter Fairbrother <peter@xxxxxxxxxx>
  • To: arocket@xxxxxxxxxxxxx
  • Date: Sun, 9 Apr 2023 01:55:44 +0100

On 08/04/2023 03:02, roxanna Mason wrote:

"but mostly because [drug] users litter the empty [nitrous] cylinders"

I found 4 such MT cylinders in a parking lot near me, I collected them to see if there were any usable components like valves or vessels.

The threaded 16g CO2 ones might be more useful - they are used in guns. I thought of using them for TEA/TEB cartridges.



Talking of unusual chemistry and torpedoes, the Spearfish, YU-10 and others use Otto II fuel (75% propylene glycol dinitrate with 23% sebacyl chloride desensitiser and a 2% 2-nitrodiphenylamine stabiliser) plus hydroxalymine perchlorate/water.

Sounds like a pair of touchy explosives, but the Navy uses them in torpedoes and they seem happy about their safety - and they are stored in torpedoes for long periods.

I don't know the Isp you might get, but afaict it could be used as a space storable rocket propellent. Nasty, but vapour pressures are low.


Peter Fairbrother



Nothing too impressive but too bad they're not refillable. DOT regs probably make it too expensive to certify for reuse.

Ken

On Fri, Apr 7, 2023 at 6:18 PM Peter Fairbrother <peter@xxxxxxxxxx <mailto:peter@xxxxxxxxxx>> wrote:

    On 08/04/2023 00:21, BrianK ABQ wrote:
     > Confusing terminology indeed.
     >
     > I do always like wild chem combos: like a lithium/thionyl chloride
     > battery. Yes some sourcing issues, though I did see a bottle of
    thionyl
     > Cl sell on eBay a few years back. It's a watched precursor in the
     > Chemical Weapons Convention as it can be used in nerve gas
    production.


    You can buy thionyl chloride batteries, in the UK at least, but they
    are
    the wrong type size and construction for rocketry use.

    And nitrous is just about to be banned in the UK, in theory as a drug,
    but mostly because users litter the empty cylinders.

    Peter F

     >
     > Brian
     >
     >
     >
     >
     >     Perhaps somewhat confusingly, the Mk 46 battery was the main
    propulsion
     >     primary battery used in the Mk 37 torpedo (and not in the Mk 46
     >     torpedo,
     >     which runs on Otto II fuel). Auxiliary power was supplied by
    a smaller
     >     but similar but rechargeable Mk 53 battery.
     >
     >




Other related posts: