[xamdawson7]

Good day all....

Does anybody know of any studies, images, or literature that talks about a squid like thruster/propulsion? I do not mean the water jet thrusted by cephalopods, but the lateral membranes (on each side of the head) of the squid.

Do you know anything about this?
What are your views? (is it feesable)

Thank you

[SVDesign]

No action picture available, but after seing them many times under water while diving, they are waving the membrane surrounding their body, depending on the side they want to go to. It works like oars, each side of the body.

[xamdawson7]

Thank you sir, although there is a I will compensate asap.


Anything to shed light on topic?

[Highlander]

Check out the Hobie kayak.
Pedal powered with fins below that sweep port to stbd.
The fins flip over as they reverse direction.
They are very fast but after awhile most people run out of gas and are no faster than a traditional paddle kayak.

Good idea for a quiet sub.

Carl

[Arniev]

Originally Posted by xamdawson7

Good day all....

Does anybody know of any studies, images, or literature that talks about a squid like thruster/propulsion? I do not mean the water jet thrusted by cephalopods, but the lateral membranes (on each side of the head) of the squid.

Do you know anything about this?
What are your views? (is it feesable)

Thank you

Carl,
Do you have anything like this in the Skunk Works?
Arnie

[YachtForums]

Originally Posted by Arniev

Carl,
Do you have anything like this in the Skunk Works?

.....

[Highlander]

The Hunt For Red October!

[Loren Schweizer]

Originally Posted by AMG

Hi, just a reminder:

Guidelines on Avatars...

In order to maintain a professional format at YachtForums, we've established a few guidelines regarding avatars and we would appreciate your cooperation...

1. Flash or animated avatars are prohibited.
2. Keep avatars to 100 pixels wide, preferably less.
3. Avatars should be marine and yachting related!
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5. Commercial URL's in signatures are strictly prohibited.
6. Cartoons, faces, bikini girls, etc... are not appropriate.

Avatars not meeting the above requirements will be removed.

OHMIGAWD, don't tell me that xamdawson7 used the despicable 'squid-in-a-bikini' avatar! EEwwww.

[Castlerock]

Originally Posted by YachtForums

.....

Well look at that, your 10,000th post!! If this was not your day job I would be a little concerned.

[YachtForums]

Originally Posted by Castlerock

If this was not your day job I would be a little concerned.

Can't believe you guys have put up with me for this long!

I'll take credit for a dozen reasonably informative posts... mostly on how to get slapped by women for saying the wrong thing... but a good majority of my posts are news, reviews and a stealth forum where I rip on builders that some people hold in false esteem.

In addition to the 10,000 posts I’ve slipped-in under the YachtForums screen name, I have an additional 1446 posts under the YachtForum (singular) screen name. Not to mention the other 3 alias names I used to carry on conversations with myself in the early YF years. Yep, I was talking to myself. A sure sign of senility! But... I drew a few lurkers in. Maybe one of you guys reading this right now.

[Codger]

The materials development required for "squid like" propulsion is advancing but not there yet as far as I know. Materials that have one shape under stress and then revert to another shape when the stress is relieved show some promise. Other materials that change shape when in a charged or discharged state also offer promise. The range of motion and the variances in the progressive forms involved in a single fish tail might give you some idea of what's actually needed to make this work. The potential advances in things that at first glance are as simple as the impeller for a water jet or variable vane turbocharger, that will take place when the materials and their control is achieved, are good for many a late night "what if" session.

[YachtForums]

At one time, I spent some time on materials. Here's an exert from a previous discussion in the "Jet Drive vs. Prop" thread...

Originally Posted by YachtForums

In early 1984, our research team began conceptualizing and theorizing the potential of an adjustable venturi and later developed the V.G.V. (variable geometry venturi) This unit operated on the principles mentioned above but utilized hydraulics to control orifice diameter, which was necessary given the huge amounts of thrust created on the research vehicles we developed. In 1987, a very unique material was made available, current regulated (electrical stimuli), that lined the inner walls of a venturi (or bowl) and controlled exact camber and orifice dimension. This material has future applications i.e., artificial limbs, robotics, etc. Unfortunately, it is under regulation for now and there is no access to it. Inner wall flex and fluctuation is critical as well. The reason that I mention flex is because it is conceivable to utilize a material with built in flex to accomplish some desirable characteristics.

[Codger]

1987 sounds a little early for conjugated polymers. Predecessor or different track altogether?

[YachtForums]

Originally Posted by Codger

1987 sounds a little early for conjugated polymers. Predecessor or different track altogether?

Like the microchip, the laser and certain metals, some technologies have origins that predate the state of the art.

[Codger]

Fascinating subject, materials development. Sometimes difficult to keep up with what can be discussed publicly without getting too specific and at what point a mild slap is heading your way.