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World’s First All-Timber Wind Turbine Blades are Cheaper, Recyclable, Fire-Resistant and Stronger than Carbon Fiber (www.goodnewsnetwork.org)

submitted 3 weeks ago by SeaJ@lemm.ee to c/green@lemmy.ml

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[–] Dagnet@lemmy.world 15 points 3 weeks ago* (last edited 3 weeks ago) (1 children)

With the right wood you can achieve similar levels of strength/weight with wood as aluminum, but the volume is much bigger, so you often only see small aircraft made of wood. However, there are multiple issues of working with wood, the grain can significantly alter it's properties, only very specific species can be used, requires pieces to be glued together in a very specific manner and the process of validating it for aircraft use is very complicated as well.

Source: studied airspace engineering

[–] SomeoneSomewhere@lemmy.nz 1 points 3 weeks ago

All of those would also apply to turbine blade construction, except aircraft certification. You still want all the strength on the outside to get the most strength out of the material used.

You still want really good validation because these will not be inspected like aircraft are. I'm not sure if anyone will actually be getting close up with the full length of the blade surface post installation.