[PSUBS-MAILIST] new submarine

[hank pronk]

Scott, they will not act the same at depth.  The deeper you go the more force you need to push the outside rod out.  The extra force is not a biggy.  Keep the rod dia small 5/8 is good.  Then take the area of the cross section of the rod and multiply that area by the water pressure and you have the amount of extra force.
Hank
--------------------------------------------
On Fri, 4/11/14, swaters at waters-ks.com <swaters at waters-ks.com> wrote:

 Subject: [PSUBS-MAILIST] new submarine
 To: "psubs" <personal_submersibles at psubs.org>
 Received: Friday, April 11, 2014, 3:16 PM
 
 I
 have a question maybe someone can answer.
 If you have two hydraulic cylinders that are completely
 filled with oil (no air pockets anywhere in the system) one
 in a submarine and on outside of a submarine. Each cylinder
 has the rod side connected to the head side of the other
 cylinder so when on rod extends, the flow of one makes the
 other cylinder do the same exact thing. Would the one
 cylinder that does the same as the other cylinder on the
 surface function the same way at depth? Or would the deeper
 you go the more force you would have trying to push the rod
 into the cylinder? 
  
 Thanks,
 Scott Waters 
 
 -----Inline Attachment Follows-----
 
 _______________________________________________
 Personal_Submersibles mailing list
 Personal_Submersibles at psubs.org
 http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles