[PSUBS-MAILIST] K-350 plans

Wed Feb 1 23:47:23 EST 2017

Hi Rick,
I am just finalising the design. I took a semi- finished  light to a
lighting expert friend today, who is going to analyse the LED for the optimum
amperage. He says that finding the LEDs sweet spot will enable it to run cool 
enough for me to go with an acrylic lens rather than glass as I had intended. 
Will keep you in the loop with regard to progress, but shouldn't be too far off.
Alan

Sent from my iPad

> On 2/02/2017, at 3:26 PM, Rick Patton via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> Hey Alan,
> 
> Thanks for the input! Do you have any construction pictures of the lights and housings or just a finished picture? 
> 
> Rick
> 
>> On Wed, Feb 1, 2017 at 12:16 PM, Alan James via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>> Rick,
>> the lights I am making are 80mm diameter x 70mm long.
>> There is a 100mm flange for mounting that also holds the lens in.
>> So it will fit in to a 80mm diameter hole & bolt or screw to surrounding material.
>> The LEDs are 80W at 105 lm/W, so 8,400 lm. However I may not drive them that
>> hard, depending on how hot they get in water.
>> I am building a 1 person sub similar to Cliff's R300 & will be having
>> two arranged like car head lights + 1 either side, 1 looking backward
>> & 1 slightly longer as a spot light.
>> I may use the same design as navigation lights, with colored lenses & just back
>> off the power to them.
>> Cheers Alan 
>> 
>> 
>> From: Rick Patton via Personal_Submersibles <personal_submersibles at psubs.org>
>> To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
>> Sent: Thursday, February 2, 2017 10:32 AM
>> Subject: Re: [PSUBS-MAILIST] K-350 plans
>> 
>> Hey Cliff
>> 
>> That's quite a makeover! I agree, when I bought my plans, it seemed I was having to call Ketteredge a lot for clarification and would of welcomed a cleaned up set. 
>> 
>> On another note, I am getting ready to fabricate all my external light housings and would like to hear from anyone who is using LED lighting in their housings as far as how many lumans they are and what diameter they are etc. 
>> 
>> Thanks
>> 
>> Rick
>> 
>> On Tue, Jan 31, 2017 at 5:44 PM, Cliff Redus via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>> Spent a couple of months last year working on the design of a modified K-350.  I found he original K-350 plans to be pretty weak. Changes made were:
>> 
>> Removed aft external motor and prop and replaced with two fixed Minn Kota 101 thruster with kort nozzle like I have on the R300
>> Replaced vertical thrusters with two fixed Minn Kota 101 thrusters with kort nozzle
>> Propulsion and depth station keeping all fly by wire with joystick control
>> Move air tanks (two 100 SCF aluminum scuba tanks) outside hull old location of main propulsion motor
>> PLC for control of all systems (same as R300)
>> HMI and joystick on mobile to permit operation from prone, sitting or standing position.
>> Replaced life support with fully automated design used on R300
>> Moved electrical components into three electrical boxes on or near aft  elliptical head
>> Added sensors for main and auxiliary battery voltage and current, ambient water pressure and temperature, cabin pressure, temperature, and humidly, compass heading, boat roll and pitch, boat altitude and speed.  Life support system has sensors for CO2, O2 concentrations, O2 tank pressure, mass rate of O2 during O2 makeup. Pressure sensor for HP air bank and regulated air pressure.
>> Increased main battery capacity to 400 Ah  which required increasing the battery pod diameter to 16” OD and 47” seam to seam
>> Replaced the main and auxiliary battery banks with 16 OPTIMA BATTERIES BLUE TOP DEEP CYCLE MARINE BATTERY GROUP D34M.  12 for main buss and 4 for auxiliary buss. 8 batteries per pod
>> Widened the spacing on battery pods to 38”
>> Added two additional viewports
>> Added external LED lights
>>  Added compass/pitch/roll sensors off R300
>> Changed design of battery pods detachable heads to flange style
>> Redesigned the MBT and VBT controls. 
>> Utilize Hugh Fulton pancake style pneumatically operated MBT vent valves
>> Modified MBTs by closing the bottoms
>> lengthened VBT to 18” seam to seam to increase the volume to 8.75 gals
>> Added compass/pitch/roll sensors off R300
>> Built out boat in Autodesk Inventor professional.
>> Drawing package updated, 51 assembly drawings and 160 part drawings
>> With mods, the current boat weight is 4,707 lbs, without pilot or passenger
>> With mods, the current boat submerged displacement  is 4,866 lbs,
>> Buoyancy of boat with VBT and MBT fully blown is 5,849 lbf
>> Boat Reserve of buoyancy is 9.2%
>> Cliff
>> 
>> On Sun, Jan 29, 2017 at 12:18 PM, Philippe Robert via Personal_Submersibles <personal_submersibles at psubs. org> wrote:
>> Nice for the list ! I can't wait to read all the suggested modifications ans specs !
>> 
>> Philippe
>> 
>> 
>> 2017-01-29 9:22 GMT-05:00 via Personal_Submersibles <personal_submersibles at psubs.o rg>:
>> Emile,
>> 
>> I actually already started a list on what I want to improve on the K350!
>> 
>> I was actually thinking about having a 1 meter hull dia
>> Improve depth rating to around 300 meters
>> Look into improving the ballast tanks
>> Have the thrusters be controlled by a joystick
>> 
>> -Ludwig
>> 
>> 
>> 
>> -----Original Message-----
>> From: emile via Personal_Submersibles <personal_submersibles at psubs.o rg>
>> To: 'Personal Submersibles General Discussion' <personal_submersibles at psubs.o rg>
>> Sent: Sun, Jan 29, 2017 4:47 am
>> Subject: Re: [PSUBS-MAILIST] K-350 plans
>> 
>> Ludwig,
>>  
>> The K350 is a nice sub and the plans might be a good start .
>> Mind some points are a bit outdated.
>>  
>> If I build a K350:
>> -1 meter hull dia  (was 900mm)
>> -improved ballast tanks
>> -dome window in the bow
>>  
>> Emile
>>  
>> Van: Personal_Submersibles [mailto:personal_submersibles- bounces at psubs.org] Namens via Personal_Submersibles
>> 
>> Verzonden: zaterdag 28 januari 2017 23:36
>> Aan: personal_submersibles at psubs.or g
>> Onderwerp: [PSUBS-MAILIST] K-350 plans
>>  
>> Hey guys,
>>  
>> Who should I contact regarding the purchasing of the K-350 plans?
>>  
>> I bought the plans at the end of December and still haven't received them.  I also sent an email off to sales at psubs.org around two weeks ago and haven't gotten a reply.
>>  
>> Thanks,
>> Ludwig
>>  
>>  
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