[.041 Safety Wire]

Hard landings and high-G manovers will warp a metel airframe severely thus reducing performance capibilities. Remember that the all-metal construction of these birds was fairly new and not well understood at the time.

High G manuvers do not warp airframes and both monocoque and semi-monocoque construction was well understood at the time. Surpassing the ultimate load factor can indeed inflict damage to the airframe but just stating that high g maneuvers will accomplish this is wrong.