undershooting

[alpergokgoz]

what is the difference between undershooting and overshooting?

[The_Steed]

I believe that undershooting is when you land too soon - i.e. before the start of the runway...

Photos: Boeing 747-406 Aircraft Pictures | Airliners.net (http://www.airliners.net/photo/KLM---Royal/Boeing-747-406/1252724/L/)

And overshooting is when you land too far down the runway...

[Rainboe]

Back in the 70s, the old British term 'overshoot' referred to a 'go-around' (as we call it now). It was discouraged from use as it was so ambiguous. We don't really refer to 'overshoot' at all now as it is still a bit ambiguous. You 'land deep', or 'land too deep' if you roll off the end, or 'undershoot' if you hit the landing lights. Or you 'go-around' and get back up in the air and have novice Pruners making out their pilots have just almost killed them. But nobody 'overshoots' these days- it's just gone out of fashion because of the confusion it causes.

Strike the word from your mind. If anybody uses it, kill them.

[mrmrsmith]

Well said "The Steed" St Maarten is the one airport I must fly too as SLF and fly out off I must say before I die. is there a bar near bye you can sit and enjoy a beer and watch the one or two flights a day come in to land with out beening blown into the sea..

[Basil]

Yes and Roll = Touch & Go

St Maarten - one of a few places I wouldn't like an engine failure on departure.
Can't help feeling some of the SXM pix are slightly Photoshopped.

[Guest 112233]

Ok this is for the professionals to comment on - "Go round" is just as ambigous as "overshoot" - The cadence of the phrase "G-ABCD Overshoot,overshoot. I say again overshoot." elicits a fear that acts as a call to act, in my sub concious far greater than the equivelent "Go round" - when you are consentrating like fury. - Its always that Go Round = orbit gotcha in a moment of stress that frightened me, a bit like that horrible ambiguity of alarm clocks looking like Altimeters. PS I'm only talking about a brief spell of familiarisation hops as a student - If the mods think that the even resurecting the topic; like this, has even the remotest risk of confusing the pilots reading my comments please delete this post.

Enough

CAT III

[DeeCee]

CAT-III

What on earth are you talking about? It is the Pilot's responsibility to decide to go around. There may be the odd occasion when he is advised of a reason that continuing with the landing would be unwise, but ATC is unlikely to shout 'Overshoot' or 'Boo' at him.

If you have been a student it is possible that your instructor would have pointed out during a final approach that the aircraft is 'undershooting' or 'overshooting'. That is a reference to the position of the runway threshold in the windscreen - is the speed is correct and the threshold is not moving up or down then the aircraft will arrive at the desired position to land. If it is an ILS approach the pilot will see if the aircraft is on the desired speed and approach path by the instruments.

Correct me if I'm wrong, but that picture of the KLM 747 is highly suspect.

[Rainboe]

ATC do occasionally shout 'Go Around' at you! I'm only too happy for them to do so (if needed!). Go around is the common parlance in the US, and I don't think it helps having a discussion on the term 'overshoot'. It is too ambiguous and means different things to different people. Best avoid it altogether! Stick to 'Go around', 'you're too high' or 'you are undershooting', but avoid the o****shoot word altogether.

[Doors to Automatic]

Correct me if I'm wrong, but that picture of the KLM 747 is highly suspect.

Well it's a very elaborate hoax if it is because there is even a video of the landing on you tube. Note the cars and the position of some of the people.

YouTube - 747 Landing - St.Maarten (http://www.youtube.com/watch?v=zAfQwDizpRo)

[A Very Civil Pilot]

From CAP 413, chapter 10 1.4

Military use ‘Overshoot’ for ‘Low Approach’.

In response to:

What on earth are you talking about? It is the Pilot's responsibility to decide to go around

From CAP 413 chapter 4 1.10

Instructions to carry out a missed approach may be given to avert an unsafe situation.

[Guest 112233]

Thanks everyone - All I was talking about was the historic change of RT phraseology - Special Ta, To a Very Civil Pilot - I did not know that.

CAT III

[Basil]

Had a boss once who got 'roll' and 'overshoot' confused - the traffic lights on the road crossing the runway were at green :O

[con-pilot]

St Maarten - one of a few places I wouldn't like an engine failure on departure.
Can't help feeling some of the SXM pix are slightly Photoshopped.

No, the pictures of aircraft landing and nearly taking out the fence are very real. The bar in question by mrmrsmith is the Sunset Beach Bar.

The website is Sunset Beach Bar - Wish You Were Here! - Welcome to Sunset SXM! (http://www.sunsetbeachbar.com) if you link on the photo section be warned some photos are NSFW.

I have spend many a happy day sitting at that bar. :ok:

[Basil]

Yes, landed a B747 Classic there a couple of times when we'd a charter to Corsair so got to nightstop Martinique and Guadeloupe :ok:
Been for a walk around there when crewing a sail trainer - bit touristy and full of cruise ship pax.

Regret never been to The Sunset Beach - got an incipient hangover just looking at the pix :}

[411A]

Back then and there, saying "Overshoot" (or doing one) meant "Go Around"


That and...don't forget to tune the 'overshoot beacon' least one fly way beyond where one was supposed to be.:}