luzb773
15th Dec 2014, 15:26
Hi, everyone! I have some questions regarding pressure altitude and QNE!!
While reading books talking about Pressure Altitude, what is from the book is that it's the altitude indicated when the barometric scale window is set to 29.92"Hg. That's somehow similar to the concept of QNE which is altitude with reference to ISA with the standard pressure of 29.92"Hg.
So I just wiki a bit but things gonna more confusing! :{:{:{In wiki, the article said that,
"The term "QNE" refers to the indicated altitude at the landing runway threshold when 1013.25 mbar or 29.92 inHg is set in the altimeter's Kollsman window and not the setting itself, as is commonly misconceived."
So what is the differences between them?? and in which situations will we use QNE??(I know we need pressure altitude as the starting point in the charts when evaluating the aircraft performance, but I have seldom heard about the use of QNE)
Thanks in advance!!:):)
While reading books talking about Pressure Altitude, what is from the book is that it's the altitude indicated when the barometric scale window is set to 29.92"Hg. That's somehow similar to the concept of QNE which is altitude with reference to ISA with the standard pressure of 29.92"Hg.
So I just wiki a bit but things gonna more confusing! :{:{:{In wiki, the article said that,
"The term "QNE" refers to the indicated altitude at the landing runway threshold when 1013.25 mbar or 29.92 inHg is set in the altimeter's Kollsman window and not the setting itself, as is commonly misconceived."
So what is the differences between them?? and in which situations will we use QNE??(I know we need pressure altitude as the starting point in the charts when evaluating the aircraft performance, but I have seldom heard about the use of QNE)
Thanks in advance!!:):)