Yes. I am agreeing with their basic engineering approach.
They also made the assumption of a rigid aircraft and constant mass.
Think about it, as an aircraft travels, it uses fuel, therefore the mass of the aircraft will change.And depending on the type of aircraft, its not completely rigid.
If you take into account fuel usage and aircraft flexibility, that's going to change the results of the equations.
It's all good. We are here to learn from each other.
I only see one document from nasa btw. Not one from the faa. So i dont see anything about dipping the nose down.
I believe when flying a plane though, you actually have to keep the nose tilted slightly up to maintain altitude. This is due to the "angle of attack". The angle of attack is different for every plane. It also depends on how fast you are going as well and how dense the air is etc.
And due to making frequent adjustments for turbulence, you wouldn't even notice having to make tiny adjustments to follow the curvature of the earth even if it is necessary. And that would probably be done by autopilot.
The air also gets thinner as you increase in altitude, so if you were maintaining the same speed and just flying straight, the aircraft would eventually start to fall again because higher up the air would not be dense enough to generate the same amount of lift. Planes can only fly to a certain elevation before they reach their limit and can't go any higher
Yes. I am agreeing with their basic engineering approach.
They also made the assumption of a rigid aircraft and constant mass.
Think about it, as an aircraft travels, it uses fuel, therefore the mass of the aircraft will change.And depending on the type of aircraft, its not completely rigid.
If you take into account fuel usage and aircraft flexibility, that's going to change the results of the equations.
It's all good. We are here to learn from each other.
I only see one document from nasa btw. Not one from the faa. So i dont see anything about dipping the nose down.
I believe when flying a plane though, you actually have to keep the nose tilted slightly up to maintain altitude. This is due to the "angle of attack". The angle of attack is different for every plane. It also depends on how fast you are going as well and how dense the air is etc.
And due to making frequent adjustments for turbulence, you wouldn't even notice having to make tiny adjustments to follow the curvature of the earth even if it is necessary. And that would probably be done by autopilot.
The air also gets thinner as you increase in altitude, so if you were maintaining the same speed and just flying straight, the aircraft would eventually start to fall again because higher up the air would not be dense enough to generate the same amount of lift. Planes can only fly to a certain elevation before they reach their limit and can't go any higher