Tony Stark: Attitude control is a little sluggish above 15,000 meters, I'm guessing icing is the probable cause.
Jarvis: A very astute observation, sir. Perhaps, if you intend to visit other planets, we should improve the exosystems.
Tony Stark: Connect to the sys. co. Have it reconfigure the shell metals. Use the gold titanium alloy from the seraphim tactical satellite. That should ensure a fuselage integrity while while maintaining power-to-weight ratio. Got it?