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Do Airliners Have Wing Spar?  
User currently offlineA380900 From France, joined Dec 2003, 1112 posts, RR: 1
Posted (10 years 4 months 3 weeks 5 days 21 hours ago) and read 2286 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, 2561 posts, RR: 53
Reply 1, posted (10 years 4 months 3 weeks 5 days 20 hours ago) and read 2255 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.

HAL



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 (10 years 4 months 3 weeks 5 days 16 hours ago) and read 2200 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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