Hi Hank, thx for the update, i would have loved to see you making the cuts in the tank. I think people could learn from it, how to cut a propane tank. Maybe you can film your next cuts. 😊
I am still figuring out what to show, I was thinking I would teach people how to build a submarine and explain the rules of building rather than teach people how to cut and weld etc. I can do more as you suggest.
It's a bit of an expense but a plasma cutter is worth the investment in my opinion. Cleaner cuts, no tanks to get refilled and they can cut S.S. and aluminum. They can be had pretty cheap used especially if you don't need to cut over half inch, and just keep your torch for the small thick stuff!
No the steel is fine and its normal to cut and weld propane tanks. The important thing for me was to use a tank with a shell thickness of less than 1/2 inch to avoid a Post Weld Heat Treatment. This lessens the complication of welding, and I will bring in a welder to weld the pressure stuff. I will do all the rest myself.
They're stronger that way plus the weight is on the inside and will require less ballast instead of their weight being diminished by the water displacement on the outside.
@@GrantOakes The weight difference is negligible. But two reasons for inside rings is a smooth exterior for drag and exterior requires full penetration welds. That is a lot of extra welding, but both work equally well.
@@victoriaq5157 Yes for sure if you are putting a shell over the outside (fairings). then there is not so much drag. I plan to go long distances, so keeping it sleek is very important. Adding a fairing for me is a bad idea because it will increase the area to push through the water.
Thanks Hank, enjoying the videos.
Thanks Alan
I hope all the cutting goes well! Sounds like you have a busy couple days ahead of you haha
I have had an easy winter so getting sore from all this work,lol.
Hi Hank, thx for the update, i would have loved to see you making the cuts in the tank. I think people could learn from it, how to cut a propane tank. Maybe you can film your next cuts. 😊
I am still figuring out what to show, I was thinking I would teach people how to build a submarine and explain the rules of building rather than teach people how to cut and weld etc. I can do more as you suggest.
Thanks for the short, daily updates!
I have to do it this way, because I have no editing abilities or help with editing.
@@HankPronk Well, they're great! Short, concise and informative!
@@GrantOakes
Thank you
It's a bit of an expense but a plasma cutter is worth the investment in my opinion. Cleaner cuts, no tanks to get refilled and they can cut S.S. and aluminum. They can be had pretty cheap used especially if you don't need to cut over half inch, and just keep your torch for the small thick stuff!
Yes I love plasma, I had one but it died
All the best
Thank you
Are you planning to like your older designs make a system for jettisoning the ballast tanks? What you do is awesome!
Thank you, This will not have jettisoning parts because it will be very smooth and dive shallow compared to my small subs.
Hey, does burning off the propane residue in the tank anneal or otherwise change the steel structurally?
No the steel is fine and its normal to cut and weld propane tanks. The important thing for me was to use a tank with a shell thickness of less than 1/2 inch to avoid a Post Weld Heat Treatment. This lessens the complication of welding, and I will bring in a welder to weld the pressure stuff. I will do all the rest myself.
Why not put the stiffing rings on the outside?
They're stronger that way plus the weight is on the inside and will require less ballast instead of their weight being diminished by the water displacement on the outside.
@@GrantOakes The weight difference is negligible. But two reasons for inside rings is a smooth exterior for drag and exterior requires full penetration welds. That is a lot of extra welding, but both work equally well.
@@HankPronk Several tourist subs have the rings on the outside as they need the most interior room possible for seating up to 64 passengers + 3 crew.
@@victoriaq5157 Yes for sure if you are putting a shell over the outside (fairings). then there is not so much drag. I plan to go long distances, so keeping it sleek is very important. Adding a fairing for me is a bad idea because it will increase the area to push through the water.
CyberSub 🙂
You bet
Explain, but NEVER APOLOGIZE.
Exactly