Runway overrun in thessaloniki
If I'm not mistaken it only acts at higher flaps settings. To my untrained eye it seems they never got this far.
YF121 - YF460, YK176, YK177, YK661 - YR401
When the flaps are set at 40, the TE flaps:
• retract to 30 if airspeed exceeds 163 knots
• re–extend when airspeed is reduced below 158 knots.
When the flaps are set at 30, the TE flaps:
• retract to 25 if the airspeed exceeds 176 knots
• re–extend when airspeed is reduced below 171 knots.
When the flaps are set at 25, the TE flaps:
• retract to 15 if the airspeed exceeds 191 knots
• re–extend when airspeed is reduced below 186 knots.
When the flaps are set at 15, the TE flaps:
• retract to 10 if the airspeed exceeds 201 knots
• re–extend when airspeed is reduced below 196 knots.
When the flaps are set at 10, the TE flaps:
• retract to 5 if the airspeed exceeds 211 knots
• re–extend when airspeed is reduced below 206 knots.
Originally Posted by tony montana
737fctm state:. The PAPI may be safely used with respect to threshold height, but may result in landing further down the runway
Originally Posted by tony montana
if you go all the way down 2 whites 2 reds, you will land beyond aiming point most of the time. So the point you are targeting 120nm away, the point to where is ending your descent profile may be missed and all your landing calculations a bit useless.
Originally Posted by A4
PAPI's can be set for different eye heights - a B747 isnt going to see the same as a Citation.
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PAPI
Annex14: .... to ensure that the lowest height at which a pilot will see a correct approach path indication ... provides the wheel clearance over
the threshold .... for the most demanding amongst aeroplanes regularly using the runway.
However, this incident has nothing to do with PAPI approach path angles, so may I suggest a return to the topic of this thread.
the threshold .... for the most demanding amongst aeroplanes regularly using the runway.
However, this incident has nothing to do with PAPI approach path angles, so may I suggest a return to the topic of this thread.
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No. Since in this case the reference speed would reflect the flap configuration and thereby the lift. If crossing the THR on speed, you would not be even able to float those 1.3km.
Last edited by Frosch; 30th Jun 2013 at 12:52.
Controversial, moi?
No excuse for the outcome but a Frozen flap drive system springs to mind!
What springs to mind is a rushed approach and appalling airmanship resulting in a runway overrun!
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Eye Height
Capt Bloggs. You are correct, the eye height at threshold is the same for small and heavies but wheel distance to touch down not. The papis give a theoretical touchdown point without taking into account(not possible) the flare. I can tell from experience that to land a barbie jet as with T/P s at 300 m requires the pilot to try and land 150m before the fixed distance markings,I.e start dipping into 3 reds into the flare. Conversely a B747 requires the pilot to try and land at 450 m as stated in "Handling the big Jets". The papis are more suited to medium sized jets B737/A320 and should allow the pilot to aim at 300m and actually touchdown there.
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NOT all papi's are set for the same eyeheight. some are tailored for Widebody jets. this is by the way sometimes mentioned on your approach plates.
Three reds is still ok on medium jets when visual with the threshold and no close in obstacles.
4 reds, you're dead
Three reds is still ok on medium jets when visual with the threshold and no close in obstacles.
4 reds, you're dead
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Why Professional & Experience Pilots Sometimes Press the Approach
