# simplex

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1. ## The Wright brothers’ patent: Plane stabilized in roll by a pendulum. It seems impossible.

You are a big idiot.
2. ## The Wright brothers’ patent: Plane stabilized in roll by a pendulum. It seems impossible.

I am not talking with idiots. I do not answer stupid questions.
3. ## The Wright brothers’ patent: Plane stabilized in roll by a pendulum. It seems impossible.

"The turn and slip indicator can be referred to as the turn and bank indicator, although the instrument does not respond directly to bank angle." (https://en.wikipedia.org/wiki/Turn_and_slip_indicator) If the plane takes a turn in a coordinated way the bubble of air will rest in the middle of the tube regardless the bank angle. A pendulum hanging from the ceiling of the plane will do the same thing. It will point toward the floor of the airplane (the rod stays perpendicular to the longitudinal and transverse axes of the airplane) no matter of the roll angle, assuming the centripetal accel
4. ## The Wright brothers’ patent: Plane stabilized in roll by a pendulum. It seems impossible.

That is a Turn and slip indicator (https://en.wikipedia.org/wiki/Turn_and_slip_indicator). It works using gyroscopes. It has nothing to do with the pendulum of the Wright brothers.
5. ## The Wright brothers’ patent: Plane stabilized in roll by a pendulum. It seems impossible.

I am the victim of an idiot.
6. ## The Wright brothers’ patent: Plane stabilized in roll by a pendulum. It seems impossible.

You are a total ignorant. You are not even able to write the equation of a simple pendulum with a static pivot. You wrecked the topic I opened. CLOSE IT PLEASE, DELETE IT. I did not know that the level of moderators on this forum is so low from the technical point of view. What is your background. Have you graduated a technical university?
7. ## The Wright brothers’ patent: Plane stabilized in roll by a pendulum. It seems impossible.

Useless discussion that goes to nowhere. I want this topic deleted.
8. ## The Wright brothers’ patent: Plane stabilized in roll by a pendulum. It seems impossible.

Without the book we have no base for any discussion so I propose this topic should be closed. What copyright restrictions? There is no copyright restriction. Fore somebody who reads the first post, there is no way to take a look at the Patent no. 1,075,533 and the comments made there about it and other patents.
9. ## The Wright brothers’ patent: Plane stabilized in roll by a pendulum. It seems impossible.

Get a life man. Write to the author and ask him if the book can be freely distributed. You are really annoying. I did not copy the book, I just quoted it.
10. ## The Wright brothers’ patent: Plane stabilized in roll by a pendulum. It seems impossible.

1) The book is free. I found it here: http://wright1903dec17.altervista.org/Wright-patents.htm 2) I have just made an experiment with a simple pendulum built by me. While moving its suspension point to the left or to the right, the trajectory of the bob is always random. There is no relation between the degree of rotation of the pivot and the position of the rod relative to the vertical of the place. In fact, on the gif animation I posted, it is quite visible, immediately after the moment the suspension point starts to move form the point (0, -1) to the right, that the bob travels also to
11. ## The Wright brothers’ patent: Plane stabilized in roll by a pendulum. It seems impossible.

1) That document I posted appears to be free. There is no restriction on it. Also, the patents of the two brothers are freely available on the net. 2) I am not talking about the acceleration of the pivot along the longitudinal axis of the plane but about its centripetal acceleration as the plane rotates to the left or to the right. Even if the rotation movement is at a constant speed (which is not the case with inside an airplane) the acceleration of the pivot will not be zero (see the animation below)! The random trajectory of a pendulum when its pivot rotates at consta
12. ## The Wright brothers’ patent: Plane stabilized in roll by a pendulum. It seems impossible.

The Wright brothers’ patent: "Plane stabilized in roll by a pendulum" (US Patent no. 1,075,533). It seems impossible. "The pendulum rocket fallacy is a common fundamental misunderstanding of the mechanics of rocket flight and how rockets remain on a stable trajectory." Robert Goddard fell into this trap as late as March 16, 1926 when he tested a liquid fuel rocket. The Wright brothers filed their US Patent no. 1,075,533 in February 1908, tested the stabilizer in December 1913 and it worked flawlessly. Orville Wright even got a prize for his achievement (see the book below). How is i
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