Re: [PSUBS-MAILIST] update Kreidesee

[MerlinSub@t-online.de]

Hi Cliff
the MBT has over 650 Liters lift and the hard tank 
has 90 liters. Total Bouancy of both tanks 32 %.
The vbt hard tank can compensate one person complete.  

vbr Carsten

"Cliff Redus" <cliffordredus@sbcglobal.net> schrieb:
> Emile

Thanks for the technical update.  The web site has the displacement at 2.4 tons.  I am assuming this is metric tons so 2400 kg.  With an ROB of 150 kg this gives a ROB as a percent of displacement of 6.25% which seems low looking at the pictures.  Maybe the 150 kg was for only 1/2 the total displacement of the MBTs?


Good luck on the build.

 Cliff





Cliff Redus
Redus Engineering
USA Office: 830-663-6445
USA mobile: 830-931-1280
cliffordredus@sbcglobal.com 




________________________________
From: Emile van Essen <emile@airesearch.nl>
To: personal_submersibles@psubs.org
Sent: Thursday, January 29, 2009 12:18:09 PM
Subject: RE: [PSUBS-MAILIST] update Kreidesee


Cliff,  (and other interested)
 
There is now a page with  technical date and description.
http://www.airesearch.nl/index_bestanden/Page746.htm 
 
leaves some of your questions open.
 
-one person can be compensated with the VBT. But for a long, deep mission  with 2 persons, you can take extra battery’s  Soda lime etc. with you
-However built by standards of ABS /GL , no certification is planned  It is sold as a “submarine building kit”
-reserve buoyancy is about 150 Kg
 
Emile
 
 
 

________________________________

Van:owner- personal_submersibles@psubs.org [mailto:owner- personal_submersibles@psubs.org ] Namens Cliff Redus
Verzonden: vrijdag 23 januari 2009 23:05
Aan: personal_submersibles@psubs.org
Onderwerp: Re: [PSUBS-MAILIST] update Kreidesee
 
Emile
 
Excellent progress on Kreideseesub (what does this name translate into in English)!  Nice design.  Can you tell us some design specifications.  I can't read German but it looks like the design depth is 250 km .  Is this correct.  With the design being for 2 or 3 persons, how are you going to handle the ballast difference between 1, 2 or 3 persons, +/- 70 kg per person, i.e.,  removable fixed ballast or extra large variable ballast tank?  What is the hull made out of? Are you going to design for extended dives with CO2 scrubbing and O2 makeup? What is the main propulsion bus voltage? Are you planning on classing the boat?  How do you plan to launch and retrieve the boat?  What is the displacement and reserve of buoyancy?
 
Keep up the pictures.
 

 
Cliff
 

 
 

________________________________

From:Emile van Essen <emile@airesearch.nl>
To: personal_submersibles@psubs.org
Sent: Friday, January 23, 2009 2:13:30 PM
Subject: [PSUBS-MAILIST] update Kreidesee
Hi,
 
The last 2 week I did 90% of Kreideseesub hull.
A professional welder did the welding.
 
Pictures
http://picasaweb.google.nl/submachine55/kreideseesub# 
 
Small video; 
http://nl.youtube.com/watch?v=TC2FByOOkkY&feature=channel_page 
 
Regards,
 
Emile van Essen
www.AiResearch.nl
 
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