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Geodetic/geodesic Construction: Why Not?  
User currently offlineVC10DC10 From United States of America, joined Apr 2006, 1070 posts, RR: 3
Posted (3 years 3 days 19 hours ago) and read 3691 times:

Just a question driven by idle curiosity: why have aircraft designers not made wider use of the seemingly pioneering geodetic or geodesic construction principles developed by Barnes Wallis from his experience with airships and then used in aircraft such as the Vickers Wellington?


Thanks in advance for any guidance.

3 replies: All unread, jump to last
User currently offlineWesternDC6B From United States of America, joined Mar 2013, 270 posts, RR: 0
Reply 1, posted (3 years 3 days 14 hours ago) and read 3588 times:
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Just a shot in the dark here, but I imagine there'd be limits on things like window shape and placement, cargo and passenger door configuration and placement, pressure bulkhead design, and other such things.

It IS an interesting question, though.

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User currently offlinewingscrubber From UK - England, joined Sep 2001, 862 posts, RR: 0
Reply 2, posted (3 years 3 days 13 hours ago) and read 3575 times:

No reason why geodesic structure can't be used on modern aircraft, it's just that most modern aircraft (pressurized or not) all seem to be designed with semi-monocoque stressed skin structures, which results in metal/composite panels with stringers/longerons and no need for a geodesic framework. The Wellington had doped fabric skin so the framework was structurally necessary.
Maybe it's worth revisiting though?

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User currently offlineJHwk From United States of America, joined Jan 2013, 401 posts, RR: 0
Reply 3, posted (3 years 3 days 13 hours ago) and read 3572 times:

I think it was only used for unpressurized aircraft; with a pressurized frame you might worry more about having longer tension members even if they are in a diagonal grid.

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