My own design UUV/Sci-Fi submarine.

[saltydog]

My own UUV design. Been focusing on this for a few months. Thought i would modify the files and share so you could make a cool looking rc submarine/uuv/drone etc. Have fun.

Another view:
My prints came out nicely with PETG. Used my Flashforge Guider 2's to print. at .20 resolution and roughly 40 hours to print.
A little sanding, and finishing and i think this will look great. Big enough for a 4" subdriver.
I have STL files im willing to share if your interested.

[QuarterMaster]

Nice, love seeing original designs.

Questions:

1-What design criteria prompts location of that sail(?) so far aft?
Hydrodynamics? Aesthetics? Looks cool?

2-She designed for speed? Looks fast, but then again there is a golden rule for L/W ration on a submerged body. I thought I remember 10:1 or 13:1 or something like that in a Popular Science mag from decades ago. But if you are looking for speed, I'd go with a BELUGA/SKIPJACK Hull form. Maybe even mimic nature, Say a Tuna or MAKO, Nature does have 400MY's of experience.
Always wanted to try that myself after I saw a very cool SCI-FI sub on a paperback patterned after a shark..

3-Manueverability. I think the 3, 120 degree stern feathers looks cool, but for better performance I think the X tail would be an improvement. Don't get me wrong, less wetted surface will reduce drag, but may make her problematic in control, especially with than rather large fin like sail inducing a rolling moment heading into a turn. I'm wondering now if rotating the tail feathers 180 along the main axis so the rudder faces DOWN would help. Certainly on the surface I would think as your not losing the rudder to air.

These points are strictly conjecture, thought experiments if you will and by no means meant to discourage what your doing. If anything we need MORE experimentation like this as opposed to the same old "What SubDriver are you using this week?" discussions.

Pleas follow through and keep us up to date

[redboat219]

Reminds me of those Japanese Aquaracers

https://youtu.be/C_YM3mZqKPM

https://youtu.be/vF1pXZPA_AU

Notice the Y-tail in the top photo.

[saltydog]

My idea was an autonomous -unmanned spy sub. i wanted it to look different. I thought the sail in that location would be greet to look more aggressive and at least look like something high tech.: Something DARPA would have built.

Your right about the X-tail design being a far greater design. But this setup, was about something easy and manageable, i do have the original x-tail design for the real life version of this but the control surfaces are 50% smaller.