[PSUBS-MAILIST] Trustworthy launch

[hank pronk]

Scott,
put your buddy up front with you standing in the ct.  make sure the vbt is empty of water, open mbt valves.  Add weight until your windows are half submerged.  Close your mbt valves and give some air to the mbt's  to raise her 6in or so, just to be safe.  Now add 25 lbs close the hatch.  Vent the mbt's then start filling the vbt and you should be good to dive.  No math needed :)
Hank

From: swaters <swaters at waters-ks.com>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
Sent: Sunday, September 15, 2013 3:21:53 PM
Subject: Re: [PSUBS-MAILIST] Trustworthy launch



Cool. Thanks guys. I got some good ides how to correct the problem and still not clutter the cabin. I am going to attach plates to my skids. My "T" skid design would work perfectly for this. I am also thinking of useing some lead shot under the floor boards. 
Alec, I was up all night before the launch putting finishing touches on it. We have been working like crazy to make sure it is ready to go. 
It was covered by the Kansas first news and several news papers too. So psubs got some publicity. 
Thanks guys,
Scott Waters




Sent from my U.S. Cellular© Smartphone
Alec Smyth <alecsmyth at gmail.com> wrote:

Excellent, congrats! You went from asking how to bond your viewports to testing them in just a couple of days, you must be working like crazy getting Trustworthy ready for the convention. Well, as you can see in the responses the boats are typically light. I seem to recall Dan H. or Harold Maynard - a K350 whichever it was - saying they had 400 lbs of lead in the cabin. And remember for salt water you'll need a lot more (3% of your displacement more). 

I'm really looking forward to seeing Trustworthy in a few weeks, there's nothing like a shiny new boat. 


Best,

Alec



On Sun, Sep 15, 2013 at 11:19 AM, swaters <swaters at waters-ks.com> wrote:

Hey guys. I did the first dive in trustworthy. The boat is bone dry with no leaks or even weeping after being in the water for three hours. I did have a few electrical problems due to not getting the grounding bolt area clean enough of epoxy paint, but that is a easy fix. A problem I had was not weighing enough. It was me and a buddy we both weigh 175 pounds or so. The two drop weights are 250 pounds total (same as kitteredge). I ended up putting 100 pounds of lifting weights, about 200 pounds of old jacks and it still wouldn't go down. I had the safty dives stand on it and it went down. After scrathing my head for a while I decided the scuba tanks on the outside which had 100 pounds negative boancy now is close to 0 boyancy so that makes due for a little, of the extra floatation. But what about the extra weight of the jacks and the divers? The only thing I can think of is the tanks were not venting well. I notice they got hydro locked way to easy. It
 seems like the 1/2 " line is way to small. So the only thing I can figure out is maybe the ballest tanks were not venting all the way. Everything about my sub is built just like the blue prints so that is the only thing I can think of about it being to bouant. Any thoughts?
>Thanks,
>Scott Waters
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