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Search: Posts Made By: PhiTran
Forum: General Discussion (sailing related)   03-14-2012
Replies: 10
Views: 1,273
Posted By PhiTran
Re: Sailing using water current

Yes! You are right! (it need water current if there is).
Forum: General Discussion (sailing related)   03-14-2012
Replies: 10
Views: 1,273
Posted By PhiTran
Re: Sailing using water current

This is not a sail boat as it is commonly understood. For example: one can not use this on the ocean (no water current) . . . . Nor it is to replace the engine, it's just an add on for those how are...
Forum: General Discussion (sailing related)   03-14-2012
Replies: 10
Views: 1,273
Posted By PhiTran
Re: Sailing using water current

I also post a video showing that changing the attack angle one can move the boat model up/down the stream using its kinetic power itself.
it is:
More on self propelling boat - YouTube

Thanks
Phi
Forum: General Discussion (sailing related)   03-07-2012
Replies: 10
Views: 1,273
Posted By PhiTran
Re: Sailing using water current

On the physic side, it is the aerodynamic lift force of the fluid effects on the foil (airfoil) as if of the airplane or of the sail going into the wind. A google may give much more info. As of...
Forum: General Discussion (sailing related)   03-07-2012
Replies: 10
Views: 1,273
Posted By PhiTran
Re: Sailing using water current

This is the current practice to move a boat upstream

Stock Footage - Chinese Laborers pull boats upstream from a river which runs between high mountains in China....
Forum: General Discussion (sailing related)   03-07-2012
Replies: 10
Views: 1,273
Posted By PhiTran
Sailing using water current

For long time it puzzles me that we can sail into the wind if we can apply the same principle to sail against the water current.

I have posted a video showing several configurations it is at:...
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