Tatu

Lufthansa A310 "Fellbach" from 1990. The plane went to "Luftwaffe" (German air force) after serving Lufthansa. This is also time before Star alliance, so no Star alliance logo on the fuselage.
* Install to iniSimulations_A310-300_Passenger_ACJ\liveries folder.
* GE engines are correct for this model

Lufthansa Airbus A310 D-AICA 'Neustadt an der Weinstraße'
If I understood correctly Lufthansa never had any A310-300 wearing this livery, but aircraft dimensions are identical to the A310-200. However it seems Lufthansa (Express) had an A310-300 similarly named 'Neustadt an der Weinstraße' from August 1991 (D-AIDC) until October 1998.
GE engines should be automatically chosen.
Install in the X-Plane 11\Aircraft\iniSimulations_A310-300_Passenger_ACJ\liveries folder.

Swissair A310 HB-IPK "Liestal" 1980's livery. It is kind of difficult to find information and good photos from those years, but I hope you like flying Swissair.