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Do Airliners Have Wing Spar?  
User currently offlineA380900 From France, joined Dec 2003, 1125 posts, RR: 1
Posted (12 years 1 month 12 hours ago) and read 3464 times:

Do airliners have wing spar? It looks like airbuses have their wings attached on both sides of the wing box. Is there a rigid structure linking the two wings?

How about Boeings and other jets?

2 replies: All unread, jump to last
User currently offlineHAL From United States of America, joined Jan 2002, 2636 posts, RR: 52
Reply 1, posted (12 years 1 month 11 hours ago) and read 3433 times:

Most airliners have the wing spars attached to a rigid wing spar box at the fuselage. It is just as strong as a carry-through spar, and leaves room in the fuselage for fuel/baggage/accessory systems. It also saves weight of what would be the biggest and heaviest part of the spar running through the center of the plane. With smaller planes it's not such a big factor and they often do have continuous spars.


One smooth landing is skill. Two in a row is luck. Three in a row and someone is lying.
User currently offlineSaintsman From United Kingdom, joined Mar 2002, 2065 posts, RR: 2
Reply 2, posted (12 years 1 month 7 hours ago) and read 3378 times:

If you are thinking of a big piece of metal running from one side to the other holding the wings together, then the answer is no.

As HAL has mentioned the wings are attached to a box, also known as a torque box. The box is tensioned by wing planks, plates that hold it together and the wings themselves are attached to the box usually by three or four bolts (big bolts mind).

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