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Re: [PSUBS-MAILIST] Another response from Hunley archaeologist.



Silky,
 
Will you be at the Psubs conference in August?  I have some plans for the British WWII midget submarine series entitled X-craft, and could bring them along.
 
Doug Farrow 
 
-----Original Message-----
From: s ï l k y N?³ <silkyfx@hotmail.de>
To: personal_submersibles@psubs.org
Sent: Fri, 10 Jun 2005 09:19:22 +0000
Subject: RE: [PSUBS-MAILIST] Another response from Hunley archaeologist.

Hey Akins 
 
Have you asked if thr are any blue-prints of the Hunley avalible to the general public or psubers? 
I would jump at the chance to analyse a profesional sub & thrs about no chance what so ever of getting any plans for a modern sub ! ! 
 
take care 
  silky 
 
>From: "Akins" <lakins1@tampabay.rr.com
>Reply-To: personal_submersibles@psubs.org 
>To: <personal_submersibles@psubs.org
>Subject: [PSUBS-MAILIST] Another response from Hunley archaeologist. 
>Date: Fri, 10 Jun 2005 00:41:57 -0400 

>You raise valid points Ian. But if the Hunley was not ambient, she could >not technically be 1 atmosphere either, since any compression of her >atmosphere over 1 atmosphere of pressure would technically make her not 1 >atmosphere. 

>I am starting to wonder if the Hunley is actually neither, but a hybrid of >both, not falling technically into either catagory but having attributes of >both. Something I have never seen before. 

>I received another e mail from the Hunley archaeologist Michael P. Scafuri >as a follow up to his first e mail. In it he said that they are not really >sure how the Hunley worked yet, and that further investigation may prove >that she was 

>slightly buoyant and did have to use her forward motion and dive planes to >submerge like the later Holland did. This somewhat contradicted his first e >mail and further confuses the issue. 

>I wrote him back again asking for a definite answer as to whether the >Hunley was ambient, not ambient, or some kind of hybrid. I also mentioned >we would love to know if she was always slightly positive buoyant as soon >as he 

>and the conservatory can determine that. So bottom line here is the best >information we have coming from the archaeology experts is that they are >not sure of a lot of things yet. I'm trying to find out for us all, but we >may have to wait 

>for more investigation by them, or we may actually not ever know. Here's >our latest correspondence below. The first below one is my response to his >original e mail, the second one his lastest and second e mail to me, and >the third one my latest e mail 

>to him that I am waiting for a reply from him on. I'll post his reply here >as soon as I receive it. The mystery of the Hunley goes on. 

>Kindest regards, 

>Bill Akins. 


>----- Original Message ----- 
>From: Akins 
>To: Michael Scafuri 
>Sent: Thursday, June 09, 2005 3:05 PM 
>Subject: Re: H.L. Hunley 


>Thank you very much Mr. Scafuri. 

>I posted your reply to the PSUBS.ORG forum where we have been discussing >the Hunley a lot. I know they will be glad to hear from you. 

>I had thought that the Hunley was always slightly positively buoyant like >the later Holland submarine was and that she had to use her dive planes to 

>force her under like the Holland did. From your reply it seems the Hunley >was technically ambient but not always slightly positive buoyant. 

>Thanks again for your reply clearing these questions for me. 

>Kindest regards, 

>Bill Akins. 

>----- Original Message ----- 
>From: Michael Scafuri 
>To: Akins 
>Sent: Thursday, June 09, 2005 3:55 PM 
>Subject: Re: H.L. Hunley 


>I am glad to help. Please keep in mind though that, at this point, we >don't really know how the Hunley performed, how seaworthy she was, exactly >where her waterline was, etc. It is still speculation for the most part - >educated speculation but speculation nonetheless. We might find out one >day that yes, she did in fact need her dive planes to submerge; I don't >think so, but with such a unique vessel almost anything could ultimately be >true. The Hunley has surprised us before. 
>Take care, 

>Mike Scafuri 




>Hi Mr. Scafuri. 

>Thanks again for your help and explainations. 

>I take from your most recent e mail that it is actually unclear if the >Hunley was always slightly positive buoyant like the Holland submarine was. >As you said you may find that the Hunley was only able to submerge by using >her forward motion and dive 

>planes to keep her under just like the Holland submarine. I understand it >will take a lot of time and research to acertain exactly how she really >worked. 

>One thing I hope you could clear up for me is whether the Hunley was >technically ambient or not. Was she ambient because her atmosphere was >slightly compressed due to the ballast tanks 

>being open to the hull interior? Or was she NOT ambient because of what my >fellow Psub.org member says here....."I still don't see any reason that the >Hunley is ambient. If it was ambient it couldn't 

>dive without pressure compensation, this does not appear to the the case. >Unless some piece of information is missing, the Hunley is 1ATM. The crew >were always subjected to surface pressure (give or take the very small >amount of 

>pressure increase from the ballast tanks venting into the cabin). Once >submerged, it doesn't matter what depth the Hunley is at, the crew will be >under the same pressure, if it was ambient, the pressure the crew would be >experiencing would 

>be the same as the external water pressure. If somebody can supply me the >internal volume of the Hunley and the volume of water used to dive, I will >calculate the internal pressure after diving." 

>So Mike, could you please clear up for us whether the Hunley was >technically ambient or not? Was she some kind of a hybrid that was neither >totally ambient nor totally 1 atmosphere? 

>If that is the case then how do we catagorize what the Hunley was? 

>I would also like to know if she was always slightly positive buoyant (like >the Holland) when that can be acertained finally by you and the >conservatory. 

>We have been discussing the Hunley ongoing for a long time at our Psubs.org >forum, and it would be nice to know how she really worked. 

>Thanks again for taking the time to get back with me. 

>Kindest regards, 

>Bill Akins. 




 
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