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Air Test and Evaluation Squadron 20, known as "VX-20 " is a fleet naval aircraft test and evaluation squadron based at [[Naval Air station Station Patuxent River]].

==Key Personnell:Commanding Officer is, as of 11/2008, is CDR. John Lemmon.Personnel==

Commanding Officer is Commander John Lemmon, as of Nov. 2008. ==Aircraft:==*P-3 Orion maritime patrol aircraft*T-6 Texan II two seat turboprop trainer*T-34C Mentor two seat turboprop trainer aircraft*KC-130 tanker varient of teh venerable C-130 transport aircraft*SH-60 helicopter*RQ-4A Global Hawk high altitude recce UAV