fire calculations

[capel679]

i am trying to work out how many extinguishers my engine room needs.
not what type.
i worked out the cubic capacity which is 18 cubic metres but looking at the size of extinguishers for sale would mean i will need about 12 appliances.
doesnt seem logical nor practical.
does anybody know the answer.

 

[macd]

Some of us would be glad of a saloon that big. Have you considered boxing-in the engine?

 

[Thistle]

18 cubic metres for an engine room in a boat of 7m LOA seems a bit high. I think I'd be investing in a new battery for my calculator before shelling out for so many extinguishers.

 

[sailorman]

smaller boat or bigger engines /forums/images/graemlins/wink.gif??.

 

[JKay]

i put a 2kg fm200 automatic in my carrera's enginebay.I hope i don't need another 17 or i'll have no space for the engines /forums/images/graemlins/laugh.gif
cheers Joe

 

[RPC]

There are several articles and sites with explanations on how to work out the fire extinguisher requirements; you can see some of these on the website Onpassage.com, see link below:

See this link http://www.onpassage.com/Safety_Gear/Fire/Fire.htm

 

[dickh]

Are you sure your calculation is correct? The Firemaster GTFE1000 is for 1.7m³; the 1500 for 2.5m³ and the 2000 for 3.4m³. BUT they say DO NOT USE MORE THAN ONE GTFE AUTOMATIC EXTINGUISHER IN THE VOLUME TO BE PROTECTED. (I have the leaflet in front of me). Volume is calculated gross.

 

[Its_Only_Money]

Point all 17 extinguishers aft and when you let 'em all off Newton's 1st law will ensure you plane without engines! /forums/images/graemlins/smile.gif

18 cubic m does sound large (3x3x2m???), if true you'll need specialist gear methinks...