Originally Posted by squirtdad

What I don't get is why people want to compare plane wings and fuselages with bike frames.

The materials and build process are are not identical, and the structures, forces, designs, and function are not at all similar

what should be also be noted is that there are lots of different building methods using carbon composites in order to max out material strengths. Pre Preg, heat bonding and curing, resin and vacuum bag, positive form, negative form etc

Originally Posted by base2

Because the requirements are broadly the same: An appropriate amount of strength in the appropriate direction at the minimum possible weight with an appropriate safety margin. This requires the engineer to fully understand the requirements, the material attributes and design accordingly. The only difference is scale and form factor of the craft type.

The idea is to dispute the material limitations and argue for engineering and design execution.

Originally Posted by terrymorse

I can't speak for others, but I mentioned that the airline industry chooses carbon fiber where it makes sense, mainly for its superior fatigue resistance over aluminum alloy. Fatigue resistance of carbon composites was the subject at hand.