|Quoting Modesto2 (Thread starter):|
How does ground effect change at a high altitude and hot temperature situation compared to standard conditions at sea level? At a high density altitude, will the ground effect be more or less pronounced and why?
You won't notice a difference, trust me...I learned to fly "Hot 'n High" (desert southwest of the USA, the LOWEST field I practiced at was 4100' MSL!).
Indicated airspeed is what performance charts are written for, and for good reason: It doen't change MUCH (I know, it does change some...and there are corrections that can be applied for calibrated or true airspeed) relative to the aircraft's performance (for typical airfield elevations, anyways...).
If you carry 5-10 extra knots on final on a 100 degree (Farenheit) day at, say, LRU
, you will float just as far down the runway bleeding off the extra airspeed before the 172 finally decides to land
Actually, maybe even a bit longer, since your groundspeed will be much higher in this instance, than say if the day were more like 60 degrees farenheit.
If you attempt a soft-field takeoff, you will take much longer to get airborne into ground effect (due to the less-dense air effecting both lift and engine performance), however your indicated airspeed will still be more or less the same when you are able to go airborne into ground effect. Once again, if you are hot and high, your actual groundspeed will be pretty high in relation to a much cooler day.