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| GND PROX-FLAP OVRD SYSTEM |
Here is the answer to the question I asked last Saturday (Friday GMT time) in response to the previous uploaded image of the Boeing 747 Primary Flight Display & the Pilotseye YouTube clip of EDDF (Frankfurt) to KLAX (Los Angeles) Airport.
At what speed will the B747-400 flap override system come into effect between Flaps 25 and Flaps 20, and retract the flaps.
is it:
a. 235 knots
b. 184 knots or
c. 203 knots.
a. 235 knots
b. 184 knots or
c. 203 knots.
If you look underneath the First Officers PFD (Primary Flight Display) you will see in white GND PROX (Ground Proximity System) & underneath there is FLAP OVRD (the Flap Overide System). This is only on the First Officers side & the original Aerowinx manual states under Flap Load Relief -With flaps 25 and more than 203 knots flaps retract to 20 degrees".
Hope you en joyed the investigation. If you have any questions you`d like asked please let me know.
A very rainy Sydney (YSSY) today with the wind 210 at 4 knots on runway 16 (the long one) with the Vice President of the USA departing about 30 minutes ago with the Callsign SAM.
May all you flap settings be helpful ones.
Till next time,
Neil
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