Recent content by Angrier_foh

That made me lol, good one (no sarcasm).

Indeed, but for the question to have it"s intended effect you must assume airspeed.

You don"t get it, it"s not a scientific question. It"s a trick question, and the trick is: to make youthinkit"s scientific. It"s not about whether the plane will take off if the relative speed to you is zero. It"s about the plane moving ahead just like on a normal runway. Of course it will take...

So I just posted a bunch of shit for nothing because the question is not about wether the plane will lift off if it"s relative speed is zero, but rather its a trick to say that the plane is still moving forward, creating air draft, and all that good shit that I posted about earlier.

Indeed, the trick of the question is that the plane will move forward, relative to you, to the earth, the the bystander. Why? Because the propeller will push the plane forward through the air, while the wheels are just a free rotating agent. Assuming no friction, the belt cant go a million miles...

Ok I realize that if there is no friction the belt can go at a million miles an hour backwards and the plane can still be pushed forward by the propellers. My whole argument is trying to say that as long as the plane"s relative speed to you is zero, there cannot be a draft to push it up, which...

Ok ok, help me understand this then. Airplane is on conveyor, it has a propeller, which is turned on. Magically, the whole airplane is encompassed in a wind... right? Because that"s what is needed for the airplane to take off. Just how localized is this wind phenomenon? Does it extend beyond...

You just said step 3 is wrong but you didn"t say why. Rather, you thought you did, but what you said has nothing to do with step 3 in my post. 3. The conveyor prevents the airplane moving through the air, as the air around the plane is still. Why is the air not still around the plane?Tell...

Hell I"ll make it real simple for you Lucane Darkseraphim: Air no move, plane no fly.

Apparently not. Let me try again. Refer to my post above yours. The airplane requires air drift against its wings to create vertical lift, does it not? Where does that drift come from, if the airplane is not moving through air?

Ok I"m no scientist, so tell me which step is wrong in my reasoning: 1. Propeller"s primary function is to push the plane through air. (So yeah, I don"t give a shit about the wheels, I know they are free moving.) 2. As the airplane moves through air, it creates draft around the wings...

I think you just owned yourself there. You said "pull through air"... air around the plane is standingstillif the plane is on a conveyor. Why would the air around the plane be moving? Answer me that.

Here"s the original poster: No it can"t take off with a single propeller on it"s nose. Where are the wings going to get the airflow from?

Exactly, if the propeller"s purpose is to push theplane(wings) forward, it is to create the pressure, thus creating vertical lift. One propeller itself would not be nearly enough to encompass the wings (not to mention to create sufficient wind speed around them).

I would assume that the whole trick to the question is that the reference point is theair around the wings, not the ground itself. But like I said, that would mean that all the air around the wings would have to be moving fast enough to generate vertical lift for the wings.