Originally Posted by
Chadzat
Those who flew the ejet at VA may remember the design flaw in the nosewheel assembly that can shimmy/shudder the whole aircraft when the taxi speed is between 18-21kt (from memory). So you either had to be above or below that usually-ideal speed.
Exactly this. The Ejet starts to shudder approaching 18 kts but sorts itself out after 20 kts. Don't know whether it's nose wheel design flaw or some kind of resonance, but once you break through 20 - 21 kts, the shuddering stops.