Did You Know?
Some airports are known as “hot and high”. This means that due to a relatively high ambient temperature and a higher than usual elevation above sea level, the air density is much lower than it would be at a sea level airport with an average temperature. Lower air density means aircraft need more power and longer runways to get off the ground.
One of the biggest hot and high airports is Johannesburg O.R. Tambo Airport in South Africa. Joburg is in fact, so hot and high, that the take off conditions were a major driving factor in the aircraft purchasing decisions of South African Airways.














