5 ms·
They are low profile since they can be folded against the body of a missile/rocket. They also have good aerodynamic properties at hypersonic speeds. http://en
by Alain-lf 12y ago
They are low profile since they can be folded against the body of a missile/rocket.
They also have good aerodynamic properties at hypersonic speeds.
http://en.wikipedia.org/wiki/Grid_fin http://en.wikipedia.org/wiki/Grid_fin for more info