Stock Photo - A highly_modified F_18 Hornet being flown by the Dryden Flight Research Center in a joint NASA/DOD/industry research program touches down on the main runway at Edwards Air Force Base following another research flight. The two_seat B model F_18, formerly a support aircraft at DFRC, has been converted into a Sytems Research Aircraft SRA to flight test a variety of experimental components and sub_sytems. Among the more than 20 experiments is the Advanced L_Probe Air Data Integration, or ALADIN, scheduled to begin flight tests this fall. Similiar to a standard pitot tube, the fuselage_mounted ALADIN probe measures and integrates Mach speed, altitude, angle of attack and side_slip angle. The experiment also incorporates a neural network computer which will be trained to compute air data measured by the probe.