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NickN
2nd April 2008, 06:42 PM
Spotted this the other morning and took a few pics.

http://www.jetphotos.net/palbum/viewphoto.php?id=6670

What would cause that sort of pattern denting on the lower fuselage? And I have circled what appears to be a small hole, however I am sure its probably not. I don't know much about aircraft but I am sure some on here would be able to shed some light?

Nick

Rhys Xanthis
2nd April 2008, 07:35 PM
http://www.jetphotos.net/viewphoto.php?id=514451&nseq=13

April 10, 2005, shows a simimlar pattern on the fusealge.

And something similar seems to exist in this photo in the same area, taken August 3 2004.

http://www.jetphotos.net/viewphoto.php?id=443652&nseq=22

NickN
2nd April 2008, 07:37 PM
Anybody know what caused/causes this to happen?

Rhys Xanthis
2nd April 2008, 08:13 PM
I can speculate..

Speed holes..they make the plane go faster:p

Clarke P
2nd April 2008, 09:03 PM
It looks like its been hit multiple times with a rolling pin :o

Nick W.
2nd April 2008, 09:06 PM
I can speculate..

Speed holes..they make the plane go faster:p

For those of you who aren't simpsons fans:

Homer: Hey, what are all these holes? (points at bullet holes in car hood)
Car Salesmen: These are speed holes. They make the car go faster.
Homer: (impressed) Oh yeah, speed holes

Good pick, Rhys!

Clarke P
2nd April 2008, 09:11 PM
Something tells me you can't help but break out in tune every time you see a monorail, Nick. :p

Rhys Xanthis
2nd April 2008, 10:58 PM
For those of you who aren't simpsons fans:



Good pick, Rhys!

haha thanks:p

love to know the actual reason for it though!

J Brown
3rd April 2008, 03:03 AM
The ripples in the fuselage are caused by shear loads between the tail and C of G or undercarriage due to turbulence or heavy landings. The skin stretches are the moment of tension and deforms leaving a permanent wrinkle.

Each skin dent/buckle is recorded (most of which you'd never be able to find!) and must remain within certain limits.

The wrinkles disappear in-flight when the a/c is pressurised. It is obviously more common on the longer length 737 models.

NickN
3rd April 2008, 07:25 AM
Liam, thanks for the explanation. All makes sense now! I am sure seeing TJO is one of the older 734's that she has seen many turbulent and rough landings!

Steve S... 2
3rd April 2008, 07:39 AM
Hi,

It is interesting when an aircraft is parked at a terminal and the sun is low and behind the aircraft, it shows up all the wrinkles, dents and the fuselage sagging between the framework... I notice this alot on 747's.

Will T
3rd April 2008, 10:18 AM
Most of the 744s have some degree of rippling on the lower fuselage, just aft of the wing root. Agree that it's not the prettiest picture, but it's quite normal as Liam says.

NickN
3rd April 2008, 10:26 AM
Can't look any worse than that beat up junk heap Atlas fly. It looks horrible with all the paint missing and stuff! Every time I see it it looks worse than the last time.

Daniel G
3rd April 2008, 10:59 AM
http://www.airliners.net/photo/Qantas/Boeing-737-838/1075648/M/

Shameless :rolleyes:

Brenden S
3rd April 2008, 04:19 PM
All the 737's have the rippling down the back. Its purely repeat pressurization and landings that cause it.

Tom PER
4th April 2008, 03:25 PM
It's called cellulite fellas...:D

D Chan
4th April 2008, 05:58 PM
seeing TJO is one of the older 734's that she has seen many turbulent and rough landings!

and plenty of cycles!

that dot you circled in the photo, is also present on other 737-300/400s and even the 737NGs (but they are positioned a bit further from the wingroot)

http://www.airliners.net/open.file/158116/L/

NickN
4th April 2008, 06:20 PM
What exactly is the "dot" meant to be? a hole?