G'day!
I am a little confused - perhaps someone could explain/ tell me where to find the answer...
When an aircraft is in level unaccelerated flight, lift equals weight. But, when an aircraft is in an unaccelerated vertical climb, lift has decreased to virtually zero - is this so? If this is the case, how is the lift decreasing, if lift acts at 90deg to the relative airflow - which is acting vertically downwards in a vertical climb, and the aircraft is unaccelerated? I understand, from a vector diagram that the lift decreases but how is it doing this??
Why, well, how does an aircraft produce less lift in an unaccelerated climb than it does in level, unaccelerated flight, if the speed in both situations is the same?
I hope my questions have made sense...
Cheers!
BB
PS Happy Christmas y'all!