747 Jet Blast (Video Link Included)

goomba · Tue Oct 05, 2004 7:03 am

Everyone:

A friend of mine sent me this link today -

http://www.aviationexplorer.com/movies/Airplane747Jetblast.mpg

The video shows the apparent strength of the jet blast of a 747 on the tarmac at SFO.

This video looks like a fake to me, but I thought I would get the expert opinions of the Airliners.net community to validate my assumptions.

Please let me know what you think.

Goomba

bongo · Tue Oct 05, 2004 7:06 am

http://www.aviationexplorer.com/movies/Airplane747Jetblast.mpg

dl757md · Tue Oct 05, 2004 7:15 am

The video is real. It was staged to demonstrate the effects of jet blast for a safety video. The engine was removed from the vehicle to make it lighter and it was towed behind the 747 by the fire truck visible in the lower left corner of the frame. The 747s engine was at T/O power. The combination of an engineless vehicle and T/O power does exagerate the typical result of driving behind a running jet but most viewers of the tape weren't informed of this detail.

Dl757md

goomba · Tue Oct 05, 2004 7:17 am

Bongo - What is the point of your response. Did you just activate the hyperlink for me? Thanks if that was your intention.

aa777jr · Tue Oct 05, 2004 7:20 am

Goomba,

That video is real, a UA 747 at SFO. Was at SXM for spring break 3 yrs ago and witnessed the power of AF 747 blowing crap into the water off the beach.

Smile

AA777jr

goomba · Tue Oct 05, 2004 7:28 am

Aa777jr:

I always wondered about SXM. You see pictures of people standing on the beach as 747's fly over head.

Aren't they blown away by the jet blast?

What is that like?

dc8jet · Tue Oct 05, 2004 7:29 am

Are you sure that's a 747? Looks like a 777.

UAL Bagsmasher · Tue Oct 05, 2004 7:44 am

This particular video cost UAL a LOT of money. It seems the EPA got involved when they found out that UA hadn't properly decontaminated the vehicle from its various fluids, etc. Our trainers at UA told us a big lawsuit ensued following the filming of this demonstration.

dl757md · Tue Oct 05, 2004 7:50 am

Are you sure that's a 747? Looks like a 777

Upon closer inspection it looks like a 767. The empanage is shaped like a 767. Also I don't think UA ever had any 777 in that livery.

Dl757md

aa777jr · Tue Oct 05, 2004 7:55 am

Goomba,

The day before we got to SXM, I was told a man got blown from the fence to the water off the beach and broke his arm landing in the water. Smile

I saw alot of sand and people getting blown around, but no serious injuries. It was quite a sight.

Cheers,
AA777jr

ktachiya · Tue Oct 05, 2004 6:37 pm

Wait, this isn't UAL is it? Isn't it OZ (Asiana)? So is that aircraft running its engines and taxing into the rwy?

DC8

Are you sure that's a 747? Looks like a 777.

That is a 747-400 combi on Asiana.

knoxibus · Tue Oct 05, 2004 6:43 pm

First images show an Asiana 747, but then it changes to a UAL 767, I totally agree with Dl757md, the tip of the A/C where the APU is located clearly indicates a 767 shape-like design.

DIJKKIJK · Tue Oct 05, 2004 6:51 pm

I thought it was a UA 767, not a 747.

studentflyer · Tue Oct 05, 2004 7:32 pm

You see pictures of people standing on the beach as 747's fly over head.

Aren't they blown away by the jet blast?

Well, the power setting of an a/c taking off is totally different to an a/c on short final. Most a/c on short final is usually on idle power setting, therefore the jet-blast is very minimum. The noise may still be very loud, but it's not as powerful as an a/c at take off power.

Regards,
AK

N766UA · Tue Oct 05, 2004 7:51 pm

That's definatly a UA 767 at SFO. The old colors and the APU give that one away.

FlySSC · Tue Oct 05, 2004 8:08 pm

The video begins by the view of a B744 of Asiana...It doesn't mean that the aircraft used for the test IS a B744 of Asiana.

This aicraft used for this test, conducted deliberately to show to airport staff worldwide the power (and dangers) of a Jet blast, is a B767.

IDAWA · Tue Oct 05, 2004 8:32 pm

Looks like a 767 to me, too. I hope the vehicle was towed without driver!

I-DAWA

edka · Wed Oct 06, 2004 1:30 am

there was a similar stunt recently done by "Top Gear" television programme in the UK. I believe, they have used Virgin Atlantic 747-400.

USAFHummer · Wed Oct 06, 2004 1:58 am

Its definitely not a 777 as the copyright date on the video is 1993, which is something like 2 or 3 years before UA even got their first 777...

Greg

FinningleyMech · Wed Oct 06, 2004 2:06 am

They did a demonstration over here in the uk like that, virgin 747 and engine at take off power, then drove t cars into the jet blast to see which was better (its a program called top gear, for car nuts).

https://www.airliners.net/open.file/666832/L/

Theres a pic of them filming, and a bit of a description too.

JAGflyer · Wed Oct 06, 2004 4:41 am

The link doesnt work for me but I have this video as I downloaded it from Kazaa lite a while ago.

IslipWN · Wed Oct 06, 2004 5:01 am

the link doesnt work

707lvr · Wed Oct 06, 2004 6:05 am

You guys broke their bandwidth.

stealthpilot · Wed Oct 06, 2004 8:12 am

Jagflyer... you got the video from kazza?
What did you search for im probably looking for the wrong thing?
Thanks

unattendedbag · Wed Oct 06, 2004 8:42 am

I am getting this message:

-----
"This domain name has been temporarily suspended for exceeding the daily bandwidth quota. The site will be automatically turned on again at 12:00AM PST (unless the site's allocated monthly limit is reached).

If you are the owner of this website, you can order more bandwidth here.

As the owner of a successful Website, it may be time to upgrade to one of Globat's dedicated server solutions. Please call 1-877-2GLOBAT for more information."
-----

first of all, what a**holes for suspending the site because it is popular.

second, guess I will have to try back later.

unattendedbag · Wed Oct 06, 2004 7:47 pm

That video is a bit deceiving. The audio track is of a single or of a set of engines at idle. The engines on the United aircraft are obviously at full throttle. Idle engines would not have that affect on a passing vehicle. But Engines at full thrust are producing winds of 200-250 miles per hour.

It isn't often you will be able to drive directly behind the threshold of a runway while an aircraft is initiating its takeoff.

If a pilot needs to do a runup, s/he is directed to an area with a blast fence. Gate runups are not allowed for this exact reason (see video).

unattendedbag · Wed Oct 06, 2004 8:01 pm

oh, and I forgot. if the site goes down again, you can get the video from:

http://www.flightlevel350.com

xjramper · Thu Oct 07, 2004 12:12 am

If this is a 777, that is realistic if it is set at idle. For de-ice training at DL, it tells us that they need to shut down their engines due to the 100mph+ winds that it produces at idle. So if they have it advanced to maybe 10% or less, what you see is a realistic probability.

XJR

unattendedbag · Thu Oct 07, 2004 9:45 am

This is not a 777. I could not find a single picture in airliners.net of a 777 in that livery. It didn't exist.

Second, even if this was a triple 7, the jet blast would not be strong enough to lift a car off the ground and toss it into lake. For de-icing, you are not required to shut down because of the possibility of throwing your truck into the next awaiting aircraft. Yes there is jet blast at idle, but the engines are shut down due to intake hazards and slight discomfort from the rear of the engines the person in the bucket may feel.

This was full power and most likely a 747.

Ken777 · Thu Oct 07, 2004 11:00 am

A friend of my father's was following a VW Bug on a mountain road in Colorado in the 60's. When he went around one curve the Bus was no longer there - wind had blown it off the mountain. When you think that the two engines on a fully loaded 767 throw out enough air to get the plane up to take off speed and then into the air it's rather clear that a car wouldn't have a chance - with or without the engine.

One hell of a video though - thanks for the link.

AFHokie · Thu Oct 07, 2004 11:56 am

The bridge that connects the Michigan Pennisula to the Main part of Michigan, haven't cars been blown off it into the lake during high winds?

NWA757 · Thu Oct 07, 2004 1:08 pm

Great footage! When was the video filmed? Was it produced by the FAA?

jfrworld · Thu Oct 07, 2004 2:26 pm

UA never had the 777 in the old white livery. It looks like a dc8 tail to me.

hotje · Thu Oct 07, 2004 6:23 pm

Just a comparison:

it's a 767 and not a 777 or 747.

View Large View Medium
Click here for bigger photo!

HlywdCatft · Sun Oct 17, 2004 11:05 pm

**""The bridge that connects the Michigan Pennisula to the Main part of Michigan, haven't cars been blown off it into the lake during high winds?""**

Yeah in the late 1980s some lady driving a Yugo got blown off the Mackinac Bridge. She was actually a friend of someone I knew. I feel guilty because before I knew that we used to make jokes about Yugos blowing off of bridges.

I think the winds were 40 mph that day on the Mackinac Bridge

Yourgo · Mon Oct 18, 2004 4:14 am

The video here is not the original one produced. It was made for airport personnel to show the affects of driving around a large aircraft with its engines running. This is a 747-100 or 200 aircraft. I'm trying to find a copy ofthe whole video which shows the aircraft, it's about 2-3 minutes long.

dc-10 levo · Mon Oct 18, 2004 4:35 am

That is an amazing video. Can't tell what aircraft it is though.

DC-10

Theiler · Mon Oct 18, 2004 4:51 am

I think the winds were 40 mph that day on the Mackinac Bridge

At least. And she was driving in excess of 65MPH, as I recall. Not a good combination!

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