++ ATOT official NEF thread part IV ++

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Rubycon

Madame President
Aug 10, 2005
17,768
485
126
Its a huge problem in the navy with aircraft. As a general rule you have to jettison over the side.

I have been told its possible to fight class D fires with a water mist, but never seen anyone actually do it.

High Pressure Mist (HiFog)systems are rapidly replacing conventional extinguishing methods including Halon and CO2. The latter are hard to beat in uninhabited areas especially where electrical switchgear exist.
 

Red Squirrel

No Lifer
May 24, 2003
70,646
13,822
126
www.anyf.ca
We had a FM200 system at my previous job, it was kinda neat to see that giant tank sitting near the door. There was a giant blue button on the wall to discharge it. Why do they make these buttons so tempting? :biggrin: There was also this small non descript black button on the wall near it. Nobody knew what it did, not even the maintenance guys. I was kind of curious to try it "by accident" but then I thought, it might be to call a code black (bomb threat). Some rooms did have blue buttons for calling a code blue (cardiac arrest / nurse alert).

I thought it was funny what the maintenance guy said about Halon. "It's not poison, it's just going to kill you". He was right, it kills you because it displaces oxygen, not because it poisons you.
 

Rubycon

Madame President
Aug 10, 2005
17,768
485
126
We had a FM200 system at my previous job, it was kinda neat to see that giant tank sitting near the door. There was a giant blue button on the wall to discharge it. Why do they make these buttons so tempting? :biggrin: There was also this small non descript black button on the wall near it. Nobody knew what it did, not even the maintenance guys. I was kind of curious to try it "by accident" but then I thought, it might be to call a code black (bomb threat). Some rooms did have blue buttons for calling a code blue (cardiac arrest / nurse alert).

I thought it was funny what the maintenance guy said about Halon. "It's not poison, it's just going to kill you". He was right, it kills you because it displaces oxygen, not because it poisons you.

Yes it does displace the oxygen and that's the primary risk. However if it comes in contact with hot surfaces, breakdown occurs and the byproducts are extremely toxic!

Want to hear the most annoying sound in the world?

Try here!

http://www.youtube.com/watch?feature=player_detailpage&v=zrHA8jefiYc#t=13

A high volume level is recommended especially if you're using ultra high efficiency cans. You will experience what boiling perilymph fluid tastes like. Reminds me of cabbage. :biggrin:

Most likely your headphone amp isn't that powerful. Connecting a set of powerful DJ cans across a fully charged 440uF electrolytic at +250VDC will suffice. The lights in the room will appear to dim dramatically and you will hear (or what you won't) afterward the equivalent of the room plunging into a deep vacuum.
 

shortylickens

No Lifer
Jul 15, 2003
80,287
17,081
136
Yup, when halon gets super hot it becomes toxic. I think they used it everywhere but the main engineering spaces. CO2 for those.
 

Red Squirrel

No Lifer
May 24, 2003
70,646
13,822
126
www.anyf.ca
Yes it does displace the oxygen and that's the primary risk. However if it comes in contact with hot surfaces, breakdown occurs and the byproducts are extremely toxic!

Want to hear the most annoying sound in the world?

Try here!

http://www.youtube.com/watch?feature=player_detailpage&v=zrHA8jefiYc#t=13

A high volume level is recommended especially if you're using ultra high efficiency cans. You will experience what boiling perilymph fluid tastes like. Reminds me of cabbage. :biggrin:

Most likely your headphone amp isn't that powerful. Connecting a set of powerful DJ cans across a fully charged 440uF electrolytic at +250VDC will suffice. The lights in the room will appear to dim dramatically and you will hear (or what you won't) afterward the equivalent of the room plunging into a deep vacuum.

My cat did not like that. :biggrin: