Kagamin: > I doubt that degradation is acceptable in rocket launch. Then it's the hardware that needs a more flexible design :-) Like something closer to a unmanned shuttle that starts its fly with a 30 degrees "jump trampoline", etc. Just as Space Shuttle has shown that the reentry of your space ship doesn't need to be designed like a stone with parachutes, better designs can be found for the takeoff too, to make them closer to an aeroplane, with more space for errors and corrections, and a smaller amount of fuel burned.
> There can be other factors: with a train you have to control only > acceleration, the rocket has much more parameters to control - more bugs in > logic. Bugs are always possible, and there is no way to be sure to avoid them all. But fuzzy logic is used in control systems more complex than a simple control for missiles, they are used inside a large number of the electronic gadgets coming from Japan, their control systems can be quite complex, and they generally work :-) Bye, bearophile
