Hi Mark, Yes the AJ/TJT engine and the Artes 3000 eagle are exactly the same to my knowledge other than the Artes engine comes as a kit to assemble by the buyer. The 2 companys together manufacture the parts and sell them in their own versions. Tom Cook of Jet Model Products was supposed to import the AJT version into the US but did not for reasons I dont know. I bought my engine directly from Artes in Spain and Highly recomend it. It was extremely interesting to assemble to better understand all working parts and to help understand future problems and maintenance later on. There might or might not be a difference in the electronics sent with the different versions, all I know the FADEC electronics sent with My Atres 3000 eagle are very easy to set up and adjust and simply a piece of cake to operate the engine with. I cant wait to fly the engine
Randy