Re: [PSUBS-MAILIST] Equasion Query

[JPalominonoire@aol.com]

In a message dated 2/4/03 5:00:53 AM Pacific Standard Time, pipo305@hotmail.com writes:


> 2) one cubic inch or steel weight: 0.283 lbs. The bouyancy rule say that the 
> sub need to weight the same as the weight of the water you are displacing 
> (occupying). So you have to calculate the volume of your sub in square inch, 
> multiply it by the weight of the water per inch (0.0361)and you have the 
> weight your sub must have to be bouyent.


thanks for the welcome and equasions pierre! i have a question about the bouyancy equasion though. i didn't shine the brightest in math but lets say the sub is 3'3" by 3'33" by 10' (or ~100 cubic feet for simplicity) so if a cubic foot equals 1728 cubic inches, 172800 cubic inches is the volume of sub. so do i have this right?

172800 cu.in. X .0361 (weight of water) = 6238

is that 6238 pounds??

thanks again pierre and if anyone knows drag co-effients regarding hull design maybe you can let me know.

jasper