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Search results
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Limit vs ultimate load
Hi everyone, I've got a question that has been bugging me for a while. A typical UL limit load is +4 and -2 Gs. These loads are normally placarded and/or reported on the POH as loads that the pilot should care never to exceed, thus they do not represent (thankfully) the actual structural limits...- Emiliano
- Thread
- limit load load test structural strength ultimate load
- Replies: 29
- Forum: Aircraft Design / Aerodynamics / New Technology
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4130 vs mild steel in a truss structure
Good morning folks, since the dominant failure mode in a truss structure is column buckling, I was wondering what's the point of using high-performance steel alloys such as 4130 to build such structures, as opposed to dirt-cheap mild steel (99.8% Fe, 0.2% C). I see the point of 4130 when...- Emiliano
- Thread
- Replies: 53
- Forum: Aircraft Design / Aerodynamics / New Technology