Yeah i drew one side, then copy and paste it mirrored(only works if it is symmetrical, small details can be added after wards (I did not do that in that particular orthographic view )to add a better sense of realistic asymmetry to the design(like hatches vents and such). When I do a full asymmetrical idea, I draw it 100%, with no mirroring, but for symmetrical design is more than fine.When you do a symmetrical design like that, do you draw both halves or do you do one half then use a lightboard and trace the opposite for the other side?
The 2 sides look perfectly matched.