Question regarding this 787 photo...

[UALdave]

http://www.airliners.net/photo/Air-India/Boeing-787-8-Dreamliner/2193118/L/&sid=d7aa2cd72137cc815d6fb50fb7cc3d46

What the heck are those large yellow crates hanging underneath the wings, where the engines will eventually be? What's their purpose?

[Peter Kesternich]

http://www.jetphotos.net/viewphoto.php?id=7189037&nseq=794

Those yellow crates are weights to bend the wings downward simulating the weight of the engines that will eventually be hung in their place.

[Gabriel]

I suspect they are no so much to bend the wings down as they are to keep the CG forward enough as to prevent spontaneous tail strikes. In any event, yes, simulating the wight of the engines.

[brianw999]

I suspect they are no so much to bend the wings down as they are to keep the CG forward enough as to prevent spontaneous tail strikes. In any event, yes, simulating the wight of the engines.

Exactly correct. Also to prevent this happening..... http://www.youtube.com/watch?v=cHhZwvdRR5c&sns=em

[Peter Kesternich]

I suspect they are no so much to bend the wings down as they are to keep the CG forward enough as to prevent spontaneous tail strikes. In any event, yes, simulating the wight of the engines.

I stand corrected

[porter guy]

http://www.airliners.net/photo/Air-I...6fb50fb7cc3d46

What the heck are those large yellow crates hanging underneath the wings, where the engines will eventually be? What's their purpose?

I don't see any Air Canada colours in there. I will probably go to Montreal to watch them receive the first one