Noise !

[cjordan]

I think most assume louder due to unique sound from centerline thrust.. not sure they are any louder. Ever hear a beech 18 take off �� only thing civilian better is maybe an Mu-2 or unhushed Lear 20 series!!!����

[patrolpilot]

Liked the Learjet reference, my first jet was the 25B. The key to beating the noise sensors at airports like KSNA is to keep the tailpipes pointed at the center of the airport as the sensors are beyond the airport. The Learjets are one of a few that can climb at that angle.

[mshac]

RVSM and noise restrictions killed the 20 series in North America.

Saw one in great shape for $175k, but no rsvm and no hush kit.

If I lived in South America or Africa where these restrictions are far less, I'd own one in a minute.