Babylon...lets be go back to what I orginally said in post #22..
Thats my orginal statement and I stand by it as its the laws of physics....if you dont believe me...pull out a text book.
Let me rebutt your pointers in you last reply
YOU SAID 1.)In the pusher as the plane climbs vertically, and depending on the thrust , the plane would continues upwards. As it loses speed the airflow over the control become weak to a point where the control surface it no longe become effective.
(In a vertical climb , wing of the plane has practically no lift in this scenario, it is power by raw thrust and momentum)
MY QUESTION: So how did the plane lose speed as you descibed here?? pls enlighten
YOU SAID: 2) In this situation , the plane become unstable and start to wobble and slip out of its flight path. The laminar airflow over its airfarme start to break up and induce drag causing the aircraft to slow down further.
I SAY: I agree with you as the the boundary layer seperates from the surface, the pressure differential betweenthe front and back of th plane increases. Hence drag increase.
3) The induce drag further slow down of the aircraft and situation becomes even more unstable , vicious cycle. I SAY: I agree
4.) By this time the aircraft would have slow down till the control surface control is no longer operative.I SAY: I agree..happens to tractors and pushers
5.) The aircraft is now upright and represent an object with a tall profile and is at the mercy of gravational forces ...very unstable will fall back to mother earth.
I SAY: True...happens to all planes.
But back to point 1....WHY did the plane slow down in the first place???
Babylon,
Read the thread again from post #22
1. No one is commenting anything bad about your plane and its setup. Its a good plane and it flies well.
2. Im stating a fact backed by the law of physics in post #22. Its like any law...V=IR, F = MA, E= MC^2
3. Your disagreement about the amount of drag on your plane is debatable, only can be measured in a wind tunnel.
4. You probably did not get the point about the thrust reduces as velocity increases. Which probably caused you some misunderstanding on your part of what I was trying to explain in post #22...hence you focused only on the drag part.
5. When you state possible unlimted vertical or ...I think its fair that other experienced and knowledgeable flyers challenge you. They have a right. But Im not challenging that statement you made
Where Im challenging you is in your post #24 where you state
You mentioned:
******************
Hawkeye, theorectically if you have 1: 1 thrust the plane should hover and remain stationary, the drag component will then become zero at stationary(equilibrium).
If you exceed the thrust to weight by as much as 20% , the plane would continue to climb vertically theorectically unlimited.
*******************
I find this statement somewhat misleading and inaccurate. .....And I think it fair for others to challenge your statement and set the record straight...
Originally posted by Hawkeye
Thats my orginal statement and I stand by it as its the laws of physics....if you dont believe me...pull out a text book.
Let me rebutt your pointers in you last reply
YOU SAID 1.)In the pusher as the plane climbs vertically, and depending on the thrust , the plane would continues upwards. As it loses speed the airflow over the control become weak to a point where the control surface it no longe become effective.
(In a vertical climb , wing of the plane has practically no lift in this scenario, it is power by raw thrust and momentum)
MY QUESTION: So how did the plane lose speed as you descibed here?? pls enlighten
YOU SAID: 2) In this situation , the plane become unstable and start to wobble and slip out of its flight path. The laminar airflow over its airfarme start to break up and induce drag causing the aircraft to slow down further.
I SAY: I agree with you as the the boundary layer seperates from the surface, the pressure differential betweenthe front and back of th plane increases. Hence drag increase.
3) The induce drag further slow down of the aircraft and situation becomes even more unstable , vicious cycle. I SAY: I agree
4.) By this time the aircraft would have slow down till the control surface control is no longer operative.I SAY: I agree..happens to tractors and pushers
5.) The aircraft is now upright and represent an object with a tall profile and is at the mercy of gravational forces ...very unstable will fall back to mother earth.
I SAY: True...happens to all planes.
But back to point 1....WHY did the plane slow down in the first place???
Babylon,
Read the thread again from post #22
1. No one is commenting anything bad about your plane and its setup. Its a good plane and it flies well.
2. Im stating a fact backed by the law of physics in post #22. Its like any law...V=IR, F = MA, E= MC^2
3. Your disagreement about the amount of drag on your plane is debatable, only can be measured in a wind tunnel.
4. You probably did not get the point about the thrust reduces as velocity increases. Which probably caused you some misunderstanding on your part of what I was trying to explain in post #22...hence you focused only on the drag part.
5. When you state possible unlimted vertical or ...I think its fair that other experienced and knowledgeable flyers challenge you. They have a right. But Im not challenging that statement you made
Where Im challenging you is in your post #24 where you state
You mentioned:
******************
Hawkeye, theorectically if you have 1: 1 thrust the plane should hover and remain stationary, the drag component will then become zero at stationary(equilibrium).
If you exceed the thrust to weight by as much as 20% , the plane would continue to climb vertically theorectically unlimited.
*******************
I find this statement somewhat misleading and inaccurate. .....And I think it fair for others to challenge your statement and set the record straight...
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