1. The vertical stabilisers produce negative lift, that is they are basically inverted wing. What this means is that the lift the wing has to produce must be equal to the weight of the aircraft (in unacelerated flight) + the negative lift of the stabiliser.
The canard however produces positive lift and therefore the wing does not have to porduce as much lift.
Canard is also helpful in stalls, because it can be made to stall before the wing, the aircraft then drops it's nose and picks up speed again.
2. Don't know much about MLS exsept I know it i aproved for precission approaches which the GPS isn't at the moment. It works very like an ILS.
3. Not sure what you are asking here. Can you be more specific?
Last edited by Fresca; 5th February 2003 at 22:41.