RE: [PSUBS-MAILIST] Minn Kota - Thrust

["Wade Carson" <wacarson@interchange.ubc.ca>]

Pat,

I am planning on doing almost the exact calculation you are asking for on my
own sub using NavCAD software at work.  I am just learning the program but I
am pretty sure that it will crank out a pretty good approximation of what
you are asking for.  If you send me the information on your motor and prop I
would be happy to put your numbers in at the same time as I do my own.  I
could also work out the max speed if you can tell me what you think the
overall resistance of your hull will be.  Please note that I'm am still just
a naive student but this is something I might be able to do.

Wade Carson

-----Original Message-----
From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org]On Behalf Of Captain Nemo
Sent: Thursday, March 09, 2000 12:11 AM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Minn Kota - Thrust



----- Original Message -----
From: "Kenneth Schulze" <aquamari@cruzers.com>
To: <personal_submersibles@psubs.org>
Sent: Thursday, March 09, 2000 7:50 AM
Subject: Re: [PSUBS-MAILIST] Minn Kota - Thrust


Hi Ken,

We both know you know more about this than I do.

My understanding is that the equation "Force = Mass X Velocity" defines the
momentum energy of a moving object; is that essentially correct?

What I'd like to do is calculate how many pounds of "push" my motor and prop
are generating; if it's not too complex, how do I go about determining that?
What are the factors and variables used in the equation?

The ultimate goal will be to use that calculated "thrust force" as part of
another equation relating thrust to hull form and drag with the intent of
computing potential speed.  Can do?

Very best regards,

Pat Regan
vulcania@interpac.net