This was one of the first air wars and used aircraft that were slow and underpowered. Climbing over the mountains to the north of Aqaba meant that they had to ascend to 5000 feet which was at the limit of their performance. To gain adequate lift they had to take-off before the air temperatures rose too much and so most flights took off before 5 am.
Some interesting ideas to get to grips with associated with the pilots engagements with landscape.