RTD. Who are these guys?

flightaware.com/live/flight/RTD1 … /PACD/PHNG

“Unknown owner”. Things that make you go “Hmmmmmm…”

I can’t find anything anywhere, maybe military contractor of some type judging by all the bases the fly to. flightaware.com/live/flight/RTD51

Seeing quite a few more of these- all over. All LJ35’s. Weird.

L3 Communications Flight International is “RTD”.

They do lots of electronic warfare/countermeasures training with these aircraft. Unique airplanes; Lear 35 with hardpoints under the wings.