All fun and games until someone gets hit by jet wash.

Darwin at work right there. Let's see, I'm in a tropical paradise with a nice beach. I know, I'll stand behind a jet and wait to get blasted. Morons.
 
jordane93 said:
This girl eats concrete.

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Lol! Yeah she got messed up. If I was to stand behind a jet taking off, I'd make darn sure I'm holding on to something stationary.
 
One day it's gonna be bad there. It'll be the airliner version of the Costa Concordia when one of the big Guys catches the fence.
 
oo, concrete for dinner. What is the apparent windspeed at that fence, 100kts+? Also a good way to catch an ocular foreign body. I wonder if they could make that a 6' frangible wall instead of chain link.
 
Let'sgoflying! said:
oo, concrete for dinner. What is the apparent windspeed at that fence, 100kts+? Also a good way to catch an ocular foreign body. I wonder if they could make that a 6' frangible wall instead of chain link.
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Why would they do that? This is a major tourist attraction.
 
I stood on the beech at the bar one day. It's pretty awesome. I watched the KLM 747 arrive and depart and that was a sight! I got blasted by some jet wash but I stood almost at the waters edge. No fence riding for me!
 
Yep, wife and I drove over to the beach just before it became wildly popular and the dude who took the KLM 747 pic that became so popular was there. The few and only people there were pilots and their GFs. Except for the deeply tan topless girl...
 
Alchohol may play a factor,since there is a bar to the side of the approach ,a few cocktails and the thought process disappears.
 
What people tend to forget is that stream is low on oxygen and you choke on it, unable to breath. That's probably why she let go, she needed air.
 
I've been there and done that several times. The 737 jetblast was far worse than the 747. Why? The engines are lower to the ground.

I'll try to find some pics or videos of my experiences with it.

The problem with the chick that ate it was that she was either too light and/or wasn't holding on to the fence tight enough. You also have to get down low. You get sandblasted, as well, so prepare for that.
 
Henning said:
What people tend to forget is that stream is low on oxygen and you choke on it, unable to breath. That's probably why she let go, she needed air.
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Not if it's a high bi-pass turbofan engine like on modern airliners. A large majority of the air that passes through is bi-passed around the combustion section so there's plenty of O2. Most exhaust is also largely diluted by this bi-pass.

At high airspeed however opening your mouth creates a vacuum and makes it very difficult to breathe.
 
Mtns2Skies said:
Not if it's a high bi-pass turbofan engine like on modern airliners. A large majority of the air that passes through is bi-passed around the combustion section so there's plenty of O2. Most exhaust is also largely diluted by this bi-pass.

At high airspeed however opening your mouth creates a vacuum and makes it very difficult to breathe.
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I have never been behind a turbine and not choked on it.
 
Henning said:
One day it's gonna be bad there. It'll be the airliner version of the Costa Concordia when one of the big Guys catches the fence.
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That video really surprises me. That runway is pretty long, and the should be able to climb better than that with OEI. I almost get the sense the crew cut it close on purpose.
 
Kritchlow said:
That video really surprises me. That runway is pretty long, and the should be able to climb better than that with OEI. I almost get the sense the crew cut it close on purpose.
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7500 feet isn't that long for heavies.
 
Kritchlow said:
That video really surprises me. That runway is pretty long, and the should be able to climb better than that with OEI. I almost get the sense the crew cut it close on purpose.
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It's not the take offs, it's the landings. It's a pilot machismo game at some Latin carriers to get as low over the fence as possible. There's tire marks short of the threshold, and there are some YouTube videos that have them coming over with inches to spare.
 
Henning said:
What people tend to forget is that stream is low on oxygen and you choke on it, unable to breath. That's probably why she let go, she needed air.
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Nope. Jets run fairly lean. My understanding it that they need to limit the temperature to the turbine, among other reasons. They use maybe 25% of he oxygen.

In addition,most of he thrust comes from the fan on those jets. As mentioned earlier, those burn nothing, so their is plenty of oxygen from the fans.

Finally, lack of oxygen doesn't cause anyone to choke. An air passage obstruction, maybe. You have have been coughing very hard, maybe had tightness in your chest, more probably cause by dust being kicked up by the exhaust.
 
The significance of the oxygen depletion is it means it's being replaced by **** you can't breath much of without choking. Are you disputing the ascertation that you will choke in the jetstream of one of these engines? Because I will fly in to witness you prove it.
 
Henning said:
Why would they do that? This is a major tourist attraction.
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You know, you are right - thanks for reminding me that we have too much regulation and control in our lives.
I'd hate to see someone be crippled or killed doing it and wonder what can be done to prevent a participant from being harmed; but we should never take away the opportunity of an experience from everyone because of such fears. Otherwise, someday the regulators could shut down anything we enjoy such as skydiving, flying, many watersports, basejumping, mountain climbing etc etc.
 
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Henning said:
It's not the take offs, it's the landings. It's a pilot machismo game at some Latin carriers to get as low over the fence as possible. There's tire marks short of the threshold, and there are some YouTube videos that have them coming over with inches to spare.
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Okay... But my point still stands.
 
Henning said:
The significance of the oxygen depletion is it means it's being replaced by **** you can't breath much of without choking. Are you disputing the ascertation that you will choke in the jetstream of one of these engines? Because I will fly in to witness you prove it.
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You mean xxxx like carbon dioxide like one gives another person during mouth-to-mouth resuscitation? And water vapor? These aren't lethal gases. Jet fuel under lean conditions produces those compounds. The depletion is much less than 25% because most of the thrust being developed is from the fan, where there is more combustion.

Anyway, even if she was getting oxygen depleted by 25%, which she isn't, that gives a partial pressure of oxygen the same as 8000 feet ASL ( 760 mm * 0.75 = 570 mm). ( https://www.aana.com/resources2/archives-library/Documents/lamb_partial_pressure.pdf ). People will be enjoying such altitude, and higher, fairly soon in the ski resorts in Colorado.

Also, by the medical definition of choking ( http://medical-dictionary.thefreedictionary.com/choking ) , I doubt air pipes were blocked or restricted, but rather coughing from all the dust and dirt air moving at such speed tends to pick up.
 
Henning said:
The significance of the oxygen depletion is it means it's being replaced by **** you can't breath much of without choking. Are you disputing the ascertation that you will choke in the jetstream of one of these engines? Because I will fly in to witness you prove it.
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The people in St. Martin are far enough away that O2 depletion isn't a factor.
 
Let'sgoflying! said:
You know, you are right - thanks for reminding me that we have too much regulation and control in our lives.

I'd hate to see someone be crippled or killed doing it and wonder what can be done to prevent an innocent from being harmed; but we should never take away the opportunity of an experience from everyone because of such fears. Otherwise, someday the regulators could shut down anything we enjoy such as skydiving, flying, many watersports, basejumping, mountain climbing etc etc.
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Anyone standing there isn't an "innocent".

They know what they're in for. Sheesh.
 
denverpilot said:
Anyone standing there isn't an "innocent".

They know what they're in for. Sheesh.
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I imagine more than one first time visitor was duped into it not really knowing what they were in for.
 
Henning said:
It's not the take offs, it's the landings. It's a pilot machismo game at some Latin carriers to get as low over the fence as possible. There's tire marks short of the threshold, and there are some YouTube videos that have them coming over with inches to spare.
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They could be hot-dogging on takeoff too. I couldn't tell where rotation was, but they could have been keeping it low to give the tourists a show.
 
I landed a 757 there; no need to land short - there is plenty of runway. I did see some guys scraping it in though. :nono:
 

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I've been blasted by sand from high winds before, but nothing like that. Every time I see these videos I wonder how many eye injuries we don't hear about.
 
Everskyward said:
They could be hot-dogging on takeoff too. I couldn't tell where rotation was, but they could have been keeping it low to give the tourists a show.
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I thought only RV guys did that...

:D
 
Everskyward said:
They could be hot-dogging on takeoff too. I couldn't tell where rotation was, but they could have been keeping it low to give the tourists a show.
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Oh, I'm sure, it's just less likely to catch the gear and smack the plane down onto the runway on take off since the gear is practically stowed and you have full thrust by the time you're coming over the fence. The tragedy is most likely to occur on landing. People seem to underestimate the ability of a chain link fence to stop things quickly, and its strength.
 
There was no way Lieutenant Mitchell could see or avoid the jet wash.
 
i just looked at the 747-400 landing chart. at max landing, which they would never be at coming from europe, the 400 at flaps 30 standard day requires 7200 feet. that does not take in to consideration reverse.

bob
 
unsafervguy said:
i just looked at the 747-400 landing chart. at max landing, which they would never be at coming from europe, the 400 at flaps 30 standard day requires 7200 feet. that does not take in to consideration reverse.

bob
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If you search YouTube, you'll see KLM has produced a video about the route and the planning into that airport. They arrive quite light. They made it for one of those in house-inflight entertainment system channels, but I happened to come across it on YouTube the other day. It's a fair watch.
 
Let'sgoflying! said:
I accept your harsh derision for my choice of that word Nate, and have changed it accordingly. Apologies. Dave.
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Harsh? Hardly. Just an observation.

There's not much need to "protect" anyone who willingly stands at an airport fence with a heavy 100' away. They know what they're in for. They saw it on YouTube before they booked the cruise.

Some people go on safari for vacation, other people go find a jet to stand behind during their week or two of freedom from sitting in their cubicle. Heh. No big deal.
 
MotoFlier said:
I imagine more than one first time visitor was duped into it not really knowing what they were in for.
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And they couldn't see the runway, know where the airport generally is, or notice the really loud jet taxiing out, let alone noticing their traveling companions were a bit too pushy when trying to get them to hike down there?

I know the "world is full of idiots" but please.
 
Let'sgoflying! said:
You know, you are right - thanks for reminding me that we have too much regulation and control in our lives.
I'd hate to see someone be crippled or killed doing it and wonder what can be done to prevent a participant from being harmed; but we should never take away the opportunity of an experience from everyone because of such fears. Otherwise, someday the regulators could shut down anything we enjoy such as skydiving, flying, many watersports, basejumping, mountain climbing etc etc.
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The governments are already doing what they can to eliminate any and all "potential" harmful activities. I'm surprised I lived through my childhood doing dangerous things like riding bikes without helmets and lighting off firecrackers.
Ones persons dangerous behavior is someone else's fun. Hanging on a fence behind a roaring jet engine isn't my kind of fun but I wonder how many of these people would regularly fly on our piston planes, or let their youngsters do it?
 
For those who are concerned that all the innocents may DIE there, don't worry. The government put up a sign. It'll save everyone.

bd5468eb065bc7baf86dfd1a9a17b2b8.jpg


(Borrowed photo from a friend who was there last week.)
 
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