Jet engines and your health

[UnAnswerd]

I understand that it might be a bad idea to stand dirrectly behind an operating jet engine. However, is there a certain "safe distance" that you can be standing behind a jet engine, and not have to worry about any ill-effects??? The conditions assume very lower power, like when taxiing.

Any information would be greatly appreciated.

 

[vclean]

What? Did you say something? I can't hear you!

Wear earplugs.

 

[UnAnswerd]

What? Did you say something? I can't hear you!

Wear earplugs.

Yeah, the engines are pretty loud. But I was talking more about possible heat-induced injuries and such...

 

[vclean]

Heat stress may be an issue, but I would be more concerned about continued exposure to jet exhaust.

 

[avbug]

No cumulative effects of exposure to jet exahust per se are to be expected, but standing behind an operating turbojet engine is never a wise idea.

Each manufacturer publishes charts detailing danger and caution zones around the powerplant when operating, which include danger zones to the side of, in front of, and behind the powerplant. In front of the powerplant dangers include ingestion as well as noise dangers, and behind, thermal (heat) dangers, blast dangers, and exhaust gas dangers are all present.

Constant inhalation of any exhaust gas will result in a buildup of carbon monoxide, and is to be avoided.

 

[bafanguy]

What? Did you say something? I can't hear you!

Once you've lost 50% of your hearing, the jet engine (or cockpit wind) noise will no longer be a problem. As long as you can see the FO's & FE's lips moving and their furrowed brows, you will know what to do.

All 727 pilots understand this phenomenon.

 

[Goose Egg]

Been standin' behind a lot of jets lately, eh Unanswerd?

I'd say that a safe distance to stand behind a jet would be however far it takes to keep from getting blown over. As a general rule, most of us avoid standing directly behind aircraft with engines running as it is a rather hot, windy, noisy, smelly, and altogether uncomfortable place to be. This practice of avoiding dangerous and uncomfortable areas is often referred to as "common sense." You may have heard of this before. Unfortunately, common sense is neglected in certain circles. If I were king of aviation, every student would have to demonstrate common sense as a part of their medical examination, but it obviously doesn't always work that way.

I trust that this has been an informative post, although I strongly suspect you could have come up with this information on your own.

-Goose

 

[FN FAL]

I understand that it might be a bad idea to stand dirrectly behind an operating jet engine. However, is there a certain "safe distance" that you can be standing behind a jet engine, and not have to worry about any ill-effects??? The conditions assume very lower power, like when taxiing.

Any information would be greatly appreciated.

If you wan't to be confused even more, unanswered...my jet engine is mounted in the nose of the plane I fly, backwards...so if you are standing behind it, you'll most likely be getting struck with a propellor.

 

[GravityHater]

The very sensation and associated endorphin release that burning of kerosene in a turbine engine brings is enough to counteract any potential ill effects that CO, heat, blast, toxins, etc could inflict on a person. Stand behind it. Get up close. A little closer. There, now see what I mean?!

its analgous to eating candy.... the beneficial effects outweigh any potential and unlikely hazard. Gulp, chomp - another handful of chocolate covered ________(fill in the blank to suit your taste).

 

[TonyC]

I've been wondering when this discussion might take a turn in the direction of the jet inlet.


Should someone publish the warning in advance of the question?





.

 

[FN FAL]

I've been wondering when this discussion might take a turn in the direction of the jet inlet.


Should someone publish the warning in advance of the question?





.

Well, if unaswered makes it through my propellor and manages to become separated from the inlet airflow by the inertial separator, I think most of his questions will be answered...so at least he'll have that going for him.

 

[avbug]

I've been wondering when this discussion might take a turn in the direction of the jet inlet.

Already mentioned that, I believe.

 

[Duderino]

Been standin' behind a lot of jets lately, eh Unanswerd?

I'd say that a safe distance to stand behind a jet would be however far it takes to keep from getting blown over. As a general rule, most of us avoid standing directly behind aircraft with engines running as it is a rather hot, windy, noisy, smelly, and altogether uncomfortable place to be. This practice of avoiding dangerous and uncomfortable areas is often referred to as "common sense." You may have heard of this before. Unfortunately, common sense is neglected in certain circles. If I were king of aviation, every student would have to demonstrate common sense as a part of their medical examination, but it obviously doesn't always work that way.

I trust that this has been an informative post, although I strongly suspect you could have come up with this information on your own.

-Goose

Pompous Shmuck.

 

[Goose Egg]

Pompous Shmuck.

What, this is brain surgery or something? Come on.

-Goose

 

[UnAnswerd]

Yeah, it's been an informative thread. Even avbug gave good insight without bashing. The question arose, because yesterday I was walking torward the FBO, and a jet was taxiing like right near me.

 

[Lear60Guy]

i once made the mistake of sticking my head right into the jet exhaust, as in a matter of less than a foot from a running engine while i was unplugging a ground power unit from a lear after they started up with it. I'm still alive though...........

 

[UnAnswerd]

I trust that this has been an informative post, although I strongly suspect you could have come up with this information on your own.

No doubt, Goose Egg. Of course, I'm sure the same appies to every other question posted on this forum by other members. The forum is but one resource. Despite what many people contest, I do use other resources.

 

[troy]

Used to be behind many jets on the flight deck of the USS Kitty Hawk when I was in the Navy, can be comforting at times when the temps are low. About the only way to get warm up there.

 

[TonyC]

Already mentioned that, I believe.

You did. I was thinking more along the lines of "How close can I get..." questions, but I was being intentionally vague so as to not be responsible for giving anybody any ideas. I guess sometimes I should wonder to myself instead of wondering "out loud."











.

 

[CFIcare]

a trivia question...

I know we are talking about exhaust, but I thought of a question related to the intake. We all know the danger zones around an idling jet on the ramp. Does anyone know how big the forward "suck zone" would be on an engine that is at a high setting, say for a static test or at full power on a test stand. How far away does the proverbial penny on the pavement have to be to stay clear of an engine at full power? Just wondering. Any engineers out there?

 

[A1FlyBoy]

UAL Jetblast training video


Linky:

http://www.aviationexplorer.com/747_engine_blast.htm

 

[FlyinTim]

Dork.

 

[Goose Egg]

...I do use other resources.

Good to hear. Speaking of "other resources," how's that written coming along?

-Goose

 

[UnAnswerd]

Good to hear. Speaking of "other resources," how's that written coming along?

-Goose

95%. I was actually a little dissapointed...

 

[FN FAL]

Used to be behind many jets on the flight deck of the USS Kitty Hawk when I was in the Navy, can be comforting at times when the temps are low. About the only way to get warm up there.

My bro was an F-14 aviation electricianmate in the nav. He has an autographed "ghostriders" photo...I'm thinking the autograph was from one of the flight crews or the wing commander. It is dangerous duty for all who serve on aircraft carriers.

 

[Goose Egg]

95%. I was actually a little dissapointed...

Congrats. How many questions on RVSM did you get? I hear those can be a real killer.

-Goose

 

[UnAnswerd]

Congrats. How many questions on RVSM did you get? I hear those can be a real killer.

-Goose

You're funny Goose Egg...

 

[Goose Egg]

You're funny Goose Egg...

Hey, I'm just messin' with you. No offense intended. Sorry if it came across that way. The same goes for my original post in this thread. I may or may not like the subject of a particular thread, but responding to it or not is completely my option.

-Goose