Fishes and dolphins are powerful propellers

[kjell]

The world is full of clever ideas. I think that there is a necessity to prove that the ideas are working.

[icetreader]

Originally Posted by VladZenin

I see my travelling wave propulsion devices do not excite curiosity. I understand they are complicated and bulky. My ultimate aim was to disclose the idea of this kind of propulsion and show some specific engineering solutions. I think there are lots of physical principles that could be used for travelling wave generation. They should be uncovered when first boat models will show high performance attributes.

Vlad,

You are a visionary and it is normal that at such an early stage only few see the 'how' and/or the 'why' of your ideas.
I find your vision to be interesting, I enjoy reading the threads on these subjects, and thanks to you and other participants I've learned new things.

Yoav

[VladZenin]

Thank you very much for a such vision of this problem and for a moral support.

[VladZenin]

Originally Posted by kjell

The world is full of clever ideas. I think that there is a necessity to prove that the ideas are working.

It is already confirmed by readers discussions in all my threads. There is no doubt the ideas are working. Could you read these threads and readers opinion carefully please?

[kjell]

Originally Posted by VladZenin

It is already confirmed by readers discussions in all my threads. There is no doubt the ideas are working. Could you read these threads and readers opinion carefully please?

I am sorry for your interpretation. I mean that to day it is not enough to have an idea you can show on paper. It is necessary to show the fact on pictures or/and video.

[VladZenin]

Dear Kjell, you are not right. You can find lots of working models and finished products in Internet and in publicity with wonderful pictures and video but most of them do not attract attention of specialists or customers. Good idea must be developed. I do not hurry up to realize my idea because of complexity of the propulsion device. I see the result will be as above. I must to invent a simpler device and look for a worshipper of this idea.

[newinertia]

Well I needed to fit the boat with eigther human power or a trolling motor for a backup form of propulsion- I have been mulling this design over for a few years now and yesterday morning i decided it was the time to build one, so with only the parts and supplies I had on hand, I built this.....
The tuna fin pushed me at 1.6 mph on gps, boat is filled with a weeks worth of food and clothes, stove, 5gal water, 5 gal gas, 17hp Kohler engine, toolbox..........etc. Id say she is a fine shantyboat! the outer hulls are Hobie Cat 16, center hull is a Catalina 15 Capri. Spars under deck are 304 stainless 2"x2"
Also- this was a float test for the amas and main hull, c/b wt/balance.
Special Thanks to Mindy- my girl.

[Guillermo]

You could have got the same effect by means of traditional single oar stern sculling. Nice intent, though.

How to scull a boat

Cheers.

[VladZenin]

Originally Posted by newinertia

The tuna fin pushed me at 1.6 mph on gps, boat is filled with a weeks worth of food and clothes, stove, 5gal water, 5 gal gas, 17hp Kohler engine, toolbox..........etc.

Wish you a pleasant sail and successful fishing

[kjell]

If you don’t like to work hard. Use the electric Scull-Drive the only sculling device with reverse running.
Kjell

[chilihead98]

Originally Posted by Guillermo

You could have got the same effect by means of traditional single oar stern sculling. Nice intent, though.

How to scull a boat

Cheers.

Check out the tailboat at www.tailboats.com