Most wheels are not "spun up" prior to landing, and go from zero rpm to that of the plane's touchdown speed almost immediately upon contact with the ground.
Before and after - yes, but not during.
A Tech Sargent
What is the vetical ground reaction on the main landing gear assemblies of a Boeing 747 aircraft when landing?http://wiki.answers.com/Q/What_is_the_vetical_ground_reaction_on_the_main_landing_gear_assemblies_of_a_Boeing_747_aircraft_when_landing&src=ansTT
· Conventional landing gear uses wheels to bear the weight of the plane on the ground. Planes use unconventional landing gear when they're not going to be landing on flat ground. They use pontoons to land on water and skis to land on snow.
Basically, Helicopters Landing is of Two Types, One is Skid Landing, Wheel Landing. Skid Landing is used for Army, Civil, Ambulance etc.. This type of landing will be on Ground. Wheel Landing is for Navy, where landing will be on Ships.
yes ye they do
The distance the aircraft travels on the ground before lifting off, or the same when landing.
Actually it does BUT it also comes down from the clouds. Now A positive charge is sent up when the negative charge is sent down. They meet but we only see the one sent up because it is slower.
Hitting the ground is commonly referred to as falling or landing, depending on the context in which it occurs.
what causes lightning is that the positive charge of the storm and the negative charge of the ground (or it could be the opposite) interact like a battery and the electricity discharges into the ground lightning can also go up from the cloud into the air but i don't know why that is
The A 380 approaches ground at 170 mph.