
The engine cylinder orientation is going to have virtually no effect on the model performance. so there's usually no need to mention it when discussing a thrust line problem.
You had me wondering "how the heck coulsd someone come up with that thrustline?" when I first saw it.. 45 deg (assumed)down and 10 o-clock (viewed from above...) would be about 60 deg left. (lets spin sideways and dive like heck[X(]) I knew I was misunderstanding it somehow.