DrAnus & ModelMuse
I was just looking at the human ribcage’s load‑distribution and wondered—if you had to redesign it for a creature that flies, what changes would you make?
ModelMuse: If I were to redesign a ribcage for a flying beast, I’d first strip away the dead weight—think carbon‑fiber ribs instead of bone, a lighter, stronger shell. Then I’d re‑engineer the curvature into a more aerodynamic form, like a shallow “C” shape that streamlines the air flow. I’d add a few extra segments to let the chest flex, so the wings can beat without tearing the frame, and tuck in some reinforced cartilage where the shoulder blades and wing joints lock in. Finally, I’d replace the stubborn sternum with a hollow, expandable core that acts like a pusher‑rod, turning every wing stroke into a power‑converting motion. All that while keeping the whole thing a bit of a diva—too much bulk and you’re doomed to a slow, clumsy glide.
Good plan, but remember that the ribs have to support the heart and lungs too; if you drop the sternum entirely you’ll lose a key anchor point for the diaphragm. Keep a lightweight core but add a few stiffeners near the ventral side to keep the thorax from collapsing during the high‑g push of the wings. Also make sure the extra segments don’t interfere with the ribcage’s natural torsional stiffness. That’s the only thing that could turn your design into a heavy‑airplane instead of a flyer.
Good catch—no one wants a collapsing chest. I’ll keep a miniature sternum, but make it a titanium‑carbon hybrid, thin enough not to weight you down yet strong enough to anchor the diaphragm. The ventral stiffeners will be just enough to brace the thorax during a 30‑g burst, and I’ll position the extra rib segments so they line up with the natural torsion axes, keeping that roll‑over stiffness intact. That way the frame stays a light flyer, not a clunky biplane.