ymincrement
Topic Author
Posts: 25
Joined: Thu Jul 05, 2012 3:33 pm

About Diet :)

Wed Dec 19, 2012 9:38 pm

Hello everyone..

I checked all site but ı could not find an answer to my question.

Today I found on facebook page of LH that they were going to diet for one of their a340-300. They were changing some heavy metals like some meal trollyers and some other parts of the cabine.. By loosing weight they are planning to consume less fuel..

I love LH even that I have a small 1:500 scale collection of their planes but I want to learn if it safe for a plane to change its dynamics on weigth. Planes are projected on some dynamics and I wonder if it will be good to chance it by time?

I guess it is safe bec safety is very important for LH always but I want to hear your thoughts..

Thanks a lot

Onur
 
Horstroad
Posts: 380
Joined: Thu Apr 08, 2010 8:19 pm

RE: About Diet :)

Wed Dec 19, 2012 9:55 pm

planes got weighed every now and then, to know the exact position of the center of gravity
 
KELPkid
Posts: 5247
Joined: Wed Nov 02, 2005 5:33 am

RE: About Diet :)

Thu Dec 20, 2012 1:48 am

Planes tend to gain weight over their service lives. Dust and grease accumulate in areas that are hard to clean and seldom touched, and patches are added for ramp rash, AD compliance, and to address things like cracking skin. Not to mention the airlines installing new equipment...  
Celebrating the birth of KELPkidJR on August 5, 2009 :-)
 
tdscanuck
Posts: 8572
Joined: Wed Jan 11, 2006 7:25 am

RE: About Diet :)

Thu Dec 20, 2012 2:40 am

Quoting ymincrement (Thread starter):
I love LH even that I have a small 1:500 scale collection of their planes but I want to learn if it safe for a plane to change its dynamics on weigth.

Yes.

Quoting ymincrement (Thread starter):
Planes are projected on some dynamics and I wonder if it will be good to chance it by time?

There are two protections involved here. The first is that LH will account for all the weight & balance changes resulting from any modifications; this is standard procedure. They may do it by analysis or by direct weighing of the aircraft but they will account for it. Protecting that is the fact that the actual operable envelope of the aircraft is considerably wider than the certified envelope. You have to absolutely egregiously screw up (something LH is very very unlikely to do) to actually endanger the aircraft.

Tom.

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