One prop for electric and diesel power, about 1/2 year in diameter 3 of 4 course pitch which was apparently the arrangement for these mini-subs.
I have changed the stern egress from a dome arrangement to a conning tower using cyclinder arylic so as to give more freeboard to the hatchway. It does open to the stern not forward as I figure there is 20 foot of deck out in front and no much to the stern to deflect waves. Have added side panels of arylic for wave deflection port and starboard.
Figure on an oversized duct for the prop that pivots to act as a rudder, I saw a Seahund with this arrangement in a book I have and the comments where favourable to this arrangement. Acts only as a rudder not as a duct way for prop performance but apparently not necessary for the type of prop and rpms.
The design also has a generous twin keel for settling on the bottom. There is a bow recess which could be used for an ROV to launch once resting on the sea floor relatively close to whatever you want to explore. Could be a fairly small ROV because no need to tow hugh amount of cable.
Have created a blog with restricted access. Anyone from Psubs can download the CAD once done for component parts, the password is oceans7
www.psubs.engineer.net.au Very thankfull of the information share on the Psubs network. Once again thank for the feedback. Cheers, Lawrie.On Thu, 14 Apr 2011 07:54:43 +1200, "Hugh Fulton" <hc.fulton@gmail.com> wrote:
Hi Lawrie, You have taken away the forward/bottom viewing window. This is the most important view in a sub as your view will not see the bottom for about 10 meters which restricts you to only good visibility dives. K350's can see the bottom with 1 meter vis. Have a look at KSS euro sub Big forward viewing. Put in your eye position in the dome and calculate the refraction angle then see where you can see the bottom. Chs, Hugh -----Original Message----- From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of lawrie-psubs@environics.com.au Sent: Wednesday, 13 April 2011 7:45 p.m. To: personal_submersibles@psubs.org Subject: [PSUBS-MAILIST] Dart 32 , a diesel/electric boat incorporating k350 pressure vessel dimensions... A big good day to all. I have been working on a design incorporating the dimensions of the K350 and other vessels/pods of shorter length to create a 32 footdiesel/electric submarine with sufficient central keel area for VBTs and drop weight. As opposed to a central, single keel there are two keelswhich make up the superstructure that holds all the component parts together. Please let me know what you think, suggestions, errors, and ideas. Have uploaded the drawings to: http://www.psubs.org/projects/1280105118/dart-32/Incidentally I notice that the subscribe mail at psubs does not always allow attachments, can anyone tell me the policy, size of file to allowattachements? Cheers, Lawrie. ************************************************************************ ************************************************************************ ************************************************************************ The personal submersibles mailing list complies with the US Federal CAN-SPAM Act of 2003. Your email address appears in our databasebecause either you, or someone you know, requested you receive messagesfrom our organization. If you want to be removed from this mailing list simply click on the link below or send a blank email message to: removeme-personal_submersibles@psubs.org Removal of your email address from this mailing list occurs by an automated process and should be complete within five minutes of our server receiving your request. PSUBS.ORG PO Box 53 Weare, NH 03281 603-529-1100 ************************************************************************ ************************************************************************ ************************************************************************ __________ Information from ESET NOD32 Antivirus, version of virus signature database 6037 (20110412) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __________ Information from ESET NOD32 Antivirus, version of virus signature database 6037 (20110412) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ************************************************************************ ************************************************************************ ************************************************************************ The personal submersibles mailing list complies with the US Federal CAN-SPAM Act of 2003. Your email address appears in our databasebecause either you, or someone you know, requested you receive messagesfrom our organization. If you want to be removed from this mailing list simply click on the link below or send a blank email message to: removeme-personal_submersibles@psubs.org Removal of your email address from this mailing list occurs by an automated process and should be complete within five minutes of our server receiving your request. PSUBS.ORG PO Box 53 Weare, NH 03281 603-529-1100 ************************************************************************ ************************************************************************ ************************************************************************
Attachment:
6.JPG
Description: JPEG image
Attachment:
7.JPG
Description: JPEG image
