In the UK we use QFE alot in light aircraft flying. When I enter the circut I always set the airfield QFE which will give you your height above the airfield. Most airfield circuts are flown somewhere around 1000ft agl so every aircraft in the circut has to have the airfield QFE set so they are all at the same level in the circut. I'm not sure how the big boys use QFE but thats how us Little Boys use it. Hope this helps
