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Re: [PSUBS-MAILIST] Ring Thruster Data



Hmmmm, what is the compressive strength of ice?  :)
 
Mark Roberts
Chief Engineer
Harbortronics LLC
Mark@Harbortronics.com
253-858-7769 (Ph)
253-858-9517 (Fax)
www.Harbortronics.com
----- Original Message -----
Sent: Sunday, January 07, 2007 7:18 PM
Subject: Re: [PSUBS-MAILIST] Ring Thruster Data

Yes it's so true what your saying about low volume custom products being very expensive.  Of course I don't know what they payed for the design and if any patents, international or other wize came with it.  Harbor Branch is claiming a patent of some sort on a ring thruster.  I finally found some basic data about there thruster.

http://www.hboi.edu/eng/rov_comp.html

Also corporations love to spend money on R&D and with allot of the different parts on this thruster being injection molded that can run you $30,000 to $50,000 per part for the T1 Steel molds not to mention the cost of all the tech guys designing and testing the critter at $30 to $80 an hour. 

 How about I just make my sub and ring thrusters out of snow.  I've got plenty of it to spare at the moment. :)' Ice burgs flood right.

So if I understand you correctly, if the PSUBers of the world start hording millions of ring thrusters we can get a better price.