Econology forum in englishNew 4 stroke engine (en anglais)

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Message non lupar inventor » 05/08/11, 14:49

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Andrew :D
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Message non lupar inventor » 06/08/11, 12:02

[quote=Mr. Clarkson;72899489]Indeed it is

Image[/quote]


The Multisnoopy Ship

This is Beautiful.. :cheesy:

This is the modern variant of a sailing ship... so that the sails are not torn...

Regards Andrew :D
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Message non lupar Remundo » 06/08/11, 13:32

Wow, Snoopy got some children !

They are lucky to have a nice trip in the peaceful Snoopy's boat.

It seems that their father is less fighting than in his plane...
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Message non lupar inventor » 09/08/11, 11:03

http://www.wired.com/autopia/2010/06/downwind-faster-than-the-wind


http://www.youtube.com/watch?v=NNbNNSDljGI&feature=related

http://www.youtube.com/watch?v=GPOqlkzW8KU&feature=related

http://en.wikipedia.org/wiki/Sailing_faster_than_the_wind#Sailing_dead_downwind_faster_than_the_wind

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Aerodynamic coefficient Cx is very small. It is certainly much smaller than in the traditional ship...

This is not a traditional sail 2D, but the full 3D structure. Energy is processed and used to drive water propeller. Why can swim backwards and forwards. Like a film with 2D fan.
So many of Snoopy Ship has a much higher efficiency due to 3D

Andrew :D :D
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Message non lupar inventor » 22/08/11, 20:01

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Regards Andrew :D
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Message non lupar chatelot16 » 22/08/11, 23:01

Christophe a écrit :Mais il vrai que les améliorations ( et investissement ) apporté dans les moteur alternatifs n'ont pas de comparaison possible avec celles apportés au wankel....


c'est le contraire ! c'est pour le wankel que mahle a mis au point le revetement nikasil pour traiter l'alu et en faire des cylindre ... depuis ca a detroné la fonte avec succes pour tous les 2 temps , les tondeuse a gazon les groupes electrogene et certain diesel
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Message non lupar inventor » 06/09/11, 03:03

Old ideas in new study:
This gear drive in a helicopter that is bothering me. Another way to get rid of her. By the way, turned out that the rear propeller and also you can get rid of , because the helicopter does not have the torque of the main propeller.
The helicopter had already been built. But it had drawbacks: no, for example, could not take full advantage of autorotation, because the propeller with a hole through the center did not have good aerodynamic properties....

http://en.wikipedia.org/wiki/Sud-Ouest_Djinnn

http://en.wikipedia.org/wiki/File:Helicopter_Djinn_rotor_mast_and_blade.jpg
I missed this problem and the propeller is as it is most optimal.
Also today after assuming control of the helicopter adjustable nozzle (vectoring nozzle) on the outlet gases from the turbine driven, will be very precise.

http://en.wikipedia.org/wiki/Turbomeca_Palouste

http://upload.wikimedia.org/wikipedia/commons/0/0e/Engine_of_F-35.jpg
In summary the lack of a gear transmission and rear propeller helicopter will certainly reduce weight.





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Andrew :D
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Message non lupar Remundo » 06/09/11, 11:32

Hi Andrew

This an original idea to cut the tail and balance the helicopter by an aerodynamic counter torque.

But I worry about the amounts of fluid to succeed with this strategy and the turbulences which may decrease the efficiency of the rotor.

Nevertheless, I guess that we agree on the following : The best to save some weight is to remove the machine guns and missiles. :lol:
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Message non lupar inventor » 08/09/11, 13:25

Here PhotoStream proposal, which has improved aerodynamics and a little stiffness to the system add..



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some histo:


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http://www.youtube.com/watch?v=y9633v6U0wo

http://www.new4stroke.com/percival.pdf

http://www.new4stroke.com/AIAA-Presentation.pdf

Originally posted by Chopper
Welcome back Andrew.

One day it will fly

:eureka


http://tipjet.com/tj_pho_gallry.htm


Andrew :mrgreen: :mrgreen:
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Message non lupar Remundo » 08/09/11, 13:59

Hi Andrew

OK, thanks for the precisions...

Very nice photo of VTOL ! I guess this is a VTOL (Vertical Take Off and Landing) ?

For French People , we say "ADAV" avion à décollage et atterrissage vertical...

I enjoy the VTOL because it can gather the advantages of plane and helicopter (easy to pilot, easy to land and take off, low consumption while flying, possible stationnary flight) while preventing most of the drawbacks (consumption of helicopter, problem to take off and lang for plane)...

Oh, we're far away in the sky :D
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