|Quoting smartt1982 (Thread starter):|
My understanding is that aircraft require a fuel dumping system if their Max Take off weight is significantly higher than the Max Landing weight
Common misconception. Under US FARs it goes like this. A transport category airplane is required to have a fuel jettisoning system (FAR
25.1001) unless it can meet the climb requirements of FAR
25.121(d) Note that this has absolutely nothing with structural damage considerations for landing. Nobody cares about that. It is about rejecting the landing with an engine inoperative and not crashing. 25.121(d) describes an ability to climb at a 2.1% (for two-engine airplane with an engine inoperative) which is 2.1 feet of elevation gained in 100 feet of horizontal travel. Again it has nothing to do with overweight landings.
Further, since the max ramp weight of a jet is always greater than the max landing weight it follows that it is okay for a plane to BE
on the ground at that higher weight, therefore the only consideration is the impact speed with the ground at that higher weight. Since F=MA
if you can get your vertical speed to near zero at touchdown you can land a plane at max ramp weight with no damage whatever.
Happiness is not seeing another trite Ste. Maarten photo all week long.