Go Back  PPRuNe Forums > Flight Deck Forums > Tech Log
Reload this Page >

Some Basic Question about QFE

Wikiposts
Search
Tech Log The very best in practical technical discussion on the web

Some Basic Question about QFE

Thread Tools
 
Search this Thread
 
Old 10th Apr 2014, 17:21
  #1 (permalink)  
Thread Starter
 
Join Date: Apr 2014
Location: HONGKONG
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Some Basic Question about QFE

Assume
Elevation 931ft
QNH 1003Mb
Temperature 9 'c

What would the QFE setting be on the altimeter if aircraft on ground and altimeter=ZERO

Also What is the density Height at this port?

I am beginner of this area
FlyingDumbo is offline  
Old 10th Apr 2014, 20:06
  #2 (permalink)  
 
Join Date: Aug 2013
Location: Northern Europe
Posts: 88
Likes: 0
Received 0 Likes on 0 Posts
A quick estimate (assuming 27 ft/hPa) gives a QFE of 968 hPa. The temperature doesn't affect the QFE-QNH relationship.

The pressure altitude is about 1200 ft (again assuming 27 ft/hPa). The temperature is approximately ISA-3.5°C so the density altitude is about 800 ft (assuming a density altitude change of 118.8 ft/°C ISA deviation).
AirborneAgain is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.