Jet Blast

Boltonpilot · July 2nd, 2003, 21:29

I've always wondered about this sort of thing...Just how hot is the exhaust that shoots from jet engines? Has anyone here had any problems concerning jet blast while they were on the ground near large aircraft?

MikeD · July 2nd, 2003, 21:32

[ QUOTE ]
I've always wondered about this sort of thing...Just how hot is the exhaust that shoots from jet engines? Has anyone here had any problems concerning jet blast while they were on the ground near large aircraft?

[/ QUOTE ]

Ever see the test video of the truck being blown over by the airliners jet blast? Interesting to see.

Boltonpilot · July 2nd, 2003, 21:33

[ QUOTE ]
[ QUOTE ]
I've always wondered about this sort of thing...Just how hot is the exhaust that shoots from jet engines? Has anyone here had any problems concerning jet blast while they were on the ground near large aircraft?

[/ QUOTE ]

Ever see the test video of the truck being blown over by the airliners jet blast? Interesting to see.

[/ QUOTE ]

Can I find it online?

vipermcg · July 2nd, 2003, 21:35

Did anyone see the movie "Pushing Tin," where the 2 guys stand by the runway and get blown around when the 747 lands? Could this actually happen?

EatSleepFly · July 2nd, 2003, 21:38

[ QUOTE ]
Could this actually happen?

[/ QUOTE ]

Probably not...security would shoot them before they made it onto the threshold!

montanapilot · July 2nd, 2003, 22:13

kinda off the subject... but when i went flying at Boeing Field out Flight Center (an FBO that caters to alot of biz jets) some the rich guys with their bmw 7's and mercedes would park their cars on the tarmac on the airplane side of the fence. guess it made them look more official than just using the regular parking lot like everyone else. anyways when one of the learjets or citations would turn around as it was leaving you would see little rocks and dirt and stuff just pepper the hell out of those shiny new cars. if just a little jet engine like that could do that imagine what a huge 757 one could do.

JHines · July 2nd, 2003, 22:24

Not sure if this is the classic video that MikeD is referring too...the camera angle is different...but you get the picture.

Jet Blast Video

Swabby · July 2nd, 2003, 22:25

[ QUOTE ]
I've always wondered about this sort of thing...Just how hot is the exhaust that shoots from jet engines?

The exhaust gas temperature (EGT) varies from one aircraft to the other somewhat. On the MD-88 the EGT is measured by probes located in the exhaust gas path of each engine. The continuous EGT limit on a MD-88 is 580C for the MD-90 it's 610C. Idle EGT varies from about 300C-480C. Naturally, the temperature will rapidly cool the further away you get from the engine.

Captain_Bob · July 3rd, 2003, 03:34

Holy Cow! Never saw that video before... I knew the blast was powerful... but... Wow...

Tim · July 3rd, 2003, 06:54

Trust me you dont want to be the victim of jet blast it .....aint pretty. Imagine a B777 just power up to taxi, remember one engine is rated at around 95000 lbs of thrust.

kellwolf · July 3rd, 2003, 09:01

Working on the ramp, we kinda get experience in this all the time. Driving behind a 737 as it's powering up to taxi is a BAD thing. I saw one ramper at BWI drive behind one (at a 'safe' distance if that exists), and most of the bags on the cart he was pulling went flying, along with his hat.

As far as the temperature, from about 50-80 yards away it kinda feels like a hot breeze in Arizona, but maybe a little more windy. There's a certain other airline that likes to block our planes in right before we pushback. It's kinda gratifying to turn the engines toward their gate and blow over all the pretty cones they set up to keep us out of their area....

pilot602 · July 3rd, 2003, 10:37

[ QUOTE ]
security would shoot them before they made it onto the threshold!

[/ QUOTE ]

Nah, they'd just make them go through a metal dector over, and over, and over, and over until they died of exhaustion/boredom.

Tim · July 3rd, 2003, 17:08

The jet blast off 737-200's is some of the worst. All that air coming out of what looks like a tube. ASA/Comair's RJ's arent to bad if you are looking. There ramp guys in ATL walk with the wing and never tell you the engine is running..nothing like hot air on a hot day.

JaceTheAce · July 3rd, 2003, 17:27

Dayam! That's crazy...didn't realize it was that much thrust! GEESH!

Dan · July 3rd, 2003, 18:09

I realize that the airport service vehicle is a bit heavier but I noticed it never budged as it passed behind the engine. The way the pick-up was tossed, you'd think the other would move a little as well.... cool video though !

cime_sp · July 3rd, 2003, 19:45

A few years ago the New York Knicks' team plane pulled up to the ramp by where the players parked and spooled up the engines a bit in order to make a tight turn and the blast picked up Jeff Van Gundy's (the coach) Honda and quickly deposited it on top of Allen Houston's Mercedes!

Jake_D · July 3rd, 2003, 20:26

This is a two part response:

Jetblast can catch you off guard if you are not paying attention. I was in a C-172 taxing from parking to 36L at Tulsa Int. I stopped to hold short of an intersection as instructed when I noticed that my plane was shaking rather violently. I thougt I was going to tip over. I could tell that I was being pushed from the left and applied appropriate crosswind controls figuring I was receiving a hell of a wind gust. When that didn't solve the problem, I looked a bit over my shoulder and noticed a Citation Jet pulled in at an angle and was shutting down their engine; paying little attention to me in the process. It was an interesting few moments.

The second is in regards to a comment someone made about a scene from "Pushing Tin". That is actually a depiction of what wingtip vorticies are like comming off a large aircraft. Many people think that it is exagerate, but it really isn't. Those things can get to be pretty powerful and hang arond a long time after a large aircraft has landed. If you never have, seek out to find pictures of small aircraft that were caught in the wake of a larger aircraft on takeoff or landing and see what can happen. It's why wake avoidance is so important.

July 2nd, 2003, 21:29	#1
Boltonpilot Junior Member Join Date: Dec 2002 Location: OH Posts: 161	Jet Blast I've always wondered about this sort of thing...Just how hot is the exhaust that shoots from jet engines? Has anyone here had any problems concerning jet blast while they were on the ground near large aircraft?

July 2nd, 2003, 21:32	#2
MikeD Administrator Join Date: Feb 2003 Location: Pinal Airpark Posts: 6,897	Re: Jet Blast [ QUOTE ] I've always wondered about this sort of thing...Just how hot is the exhaust that shoots from jet engines? Has anyone here had any problems concerning jet blast while they were on the ground near large aircraft? [/ QUOTE ] Ever see the test video of the truck being blown over by the airliners jet blast? Interesting to see.

July 2nd, 2003, 21:33	#3
Boltonpilot Junior Member Join Date: Dec 2002 Location: OH Posts: 161	Re: Jet Blast [ QUOTE ] [ QUOTE ] I've always wondered about this sort of thing...Just how hot is the exhaust that shoots from jet engines? Has anyone here had any problems concerning jet blast while they were on the ground near large aircraft? [/ QUOTE ] Ever see the test video of the truck being blown over by the airliners jet blast? Interesting to see. [/ QUOTE ] Can I find it online?

July 2nd, 2003, 21:35	#4
vipermcg Senior Member Join Date: Jul 2002 Location: New York/ West Lafayette, IN Posts: 393	Re: Jet Blast Did anyone see the movie "Pushing Tin," where the 2 guys stand by the runway and get blown around when the 747 lands? Could this actually happen?

July 2nd, 2003, 21:38	#5
EatSleepFly Old Skool Join Date: Dec 2002 Location: ?? Posts: 4,600	Re: Jet Blast [ QUOTE ] Could this actually happen? [/ QUOTE ] Probably not...security would shoot them before they made it onto the threshold!

July 2nd, 2003, 22:13	#6
montanapilot Old Skool Join Date: May 2003 Location: Portland, Orygun Posts: 1,643	Re: Jet Blast kinda off the subject... but when i went flying at Boeing Field out Flight Center (an FBO that caters to alot of biz jets) some the rich guys with their bmw 7's and mercedes would park their cars on the tarmac on the airplane side of the fence. guess it made them look more official than just using the regular parking lot like everyone else. anyways when one of the learjets or citations would turn around as it was leaving you would see little rocks and dirt and stuff just pepper the hell out of those shiny new cars. if just a little jet engine like that could do that imagine what a huge 757 one could do.

July 2nd, 2003, 22:24	#7
JHines Junior Member Join Date: May 2003 Location: SC Posts: 292	Re: Jet Blast Not sure if this is the classic video that MikeD is referring too...the camera angle is different...but you get the picture. Jet Blast Video

July 2nd, 2003, 22:25	#8
Swabby Junior Member Join Date: Jun 2003 Posts: 36	Re: Jet Blast [ QUOTE ] I've always wondered about this sort of thing...Just how hot is the exhaust that shoots from jet engines? The exhaust gas temperature (EGT) varies from one aircraft to the other somewhat. On the MD-88 the EGT is measured by probes located in the exhaust gas path of each engine. The continuous EGT limit on a MD-88 is 580C for the MD-90 it's 610C. Idle EGT varies from about 300C-480C. Naturally, the temperature will rapidly cool the further away you get from the engine.

July 3rd, 2003, 03:34	#9
Captain_Bob Old Skool Join Date: Apr 2003 Location: DFW, based back in EWR, wishing I was in Maine Posts: 3,944	Re: Jet Blast Holy Cow! Never saw that video before... I knew the blast was powerful... but... Wow...

July 3rd, 2003, 06:54	#10
Tim Old Skool Join Date: Apr 2003 Location: Atlanta Posts: 2,205	Re: Jet Blast Trust me you dont want to be the victim of jet blast it .....aint pretty. Imagine a B777 just power up to taxi, remember one engine is rated at around 95000 lbs of thrust.

July 3rd, 2003, 09:01	#11
kellwolf Old Skool Join Date: Jun 2003 Location: Memphis, TN Posts: 14,230	Re: Jet Blast Working on the ramp, we kinda get experience in this all the time. Driving behind a 737 as it's powering up to taxi is a BAD thing. I saw one ramper at BWI drive behind one (at a 'safe' distance if that exists), and most of the bags on the cart he was pulling went flying, along with his hat. As far as the temperature, from about 50-80 yards away it kinda feels like a hot breeze in Arizona, but maybe a little more windy. There's a certain other airline that likes to block our planes in right before we pushback. It's kinda gratifying to turn the engines toward their gate and blow over all the pretty cones they set up to keep us out of their area....

July 3rd, 2003, 10:37	#12
pilot602 Old Skool Join Date: Oct 2001 Location: who haa Posts: 3,752	Re: Jet Blast [ QUOTE ] security would shoot them before they made it onto the threshold! [/ QUOTE ] Nah, they'd just make them go through a metal dector over, and over, and over, and over until they died of exhaustion/boredom.

July 3rd, 2003, 17:08	#13
Tim Old Skool Join Date: Apr 2003 Location: Atlanta Posts: 2,205	Re: Jet Blast The jet blast off 737-200's is some of the worst. All that air coming out of what looks like a tube. ASA/Comair's RJ's arent to bad if you are looking. There ramp guys in ATL walk with the wing and never tell you the engine is running..nothing like hot air on a hot day.

July 3rd, 2003, 17:27	#14
JaceTheAce Old Skool Join Date: Sep 2001 Location: San Diego Posts: 7,544	Re: Jet Blast Dayam! That's crazy...didn't realize it was that much thrust! GEESH!

July 3rd, 2003, 18:09	#15
Dan Junior Member Join Date: Jun 2003 Location: Memphis, TN Posts: 65	Re: Jet Blast I realize that the airport service vehicle is a bit heavier but I noticed it never budged as it passed behind the engine. The way the pick-up was tossed, you'd think the other would move a little as well.... cool video though !

July 3rd, 2003, 19:45	#16
cime_sp Senior Member Join Date: Oct 2002 Location: ATL Posts: 782	Re: Jet Blast A few years ago the New York Knicks' team plane pulled up to the ramp by where the players parked and spooled up the engines a bit in order to make a tight turn and the blast picked up Jeff Van Gundy's (the coach) Honda and quickly deposited it on top of Allen Houston's Mercedes!

July 3rd, 2003, 20:26	#17
Jake_D Newbie Join Date: Oct 2001 Location: Ada, Oklahoma Posts: 29	Re: Jet Blast This is a two part response: Jetblast can catch you off guard if you are not paying attention. I was in a C-172 taxing from parking to 36L at Tulsa Int. I stopped to hold short of an intersection as instructed when I noticed that my plane was shaking rather violently. I thougt I was going to tip over. I could tell that I was being pushed from the left and applied appropriate crosswind controls figuring I was receiving a hell of a wind gust. When that didn't solve the problem, I looked a bit over my shoulder and noticed a Citation Jet pulled in at an angle and was shutting down their engine; paying little attention to me in the process. It was an interesting few moments. The second is in regards to a comment someone made about a scene from "Pushing Tin". That is actually a depiction of what wingtip vorticies are like comming off a large aircraft. Many people think that it is exagerate, but it really isn't. Those things can get to be pretty powerful and hang arond a long time after a large aircraft has landed. If you never have, seek out to find pictures of small aircraft that were caught in the wake of a larger aircraft on takeoff or landing and see what can happen. It's why wake avoidance is so important.

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