Back in the mid 70's I was flying helicopter patrols, for the UN, up and down the Sinai Peninsula and came face to face with an Egyptian Mig 17 while tracking down the east side of the Suez Canal. We were at the same level, 3000', opposite direction and it was pretty obvious he wasn't going to change track. We diverged and passed and I really don't know whether he saw us at all.
Of more concern in that area was being constantly tracked by Russian made, Egyptian owned ZSU23-4s, which were a four barrell 23mm radar controlled AA gun.
Regards,
BH.