When travelling East or West, it is only on the Equator that one can keep East or West and be going straight (without the need to steer).
Alwaq wa id tissekăla s alqiblat meɣ atărăm , fal equator ɣas as addobăt awădim ad issăn alqiblăt meɣ atărăm daɣ as oɣad daɣ tekle net (daɣ war ehušăl amatikwi)