Originally Posted by
JammedStab
(a) Why is toe down required when the nose is high?
Consider what the angle between the MLG and the bogie will be immediately following a touchdown in the flare - the bogie is flat on the runway while the aircraft is still pointing skywards.
(b) Is the toe down capability something that all/most aircraft with 4 wheel bogies have?
The same geometry applies regardless of how many wheels there are on the bogie.