First, take off normally (without pressing the walk button)
Next, when you are in midair hold the let go of the Accelarator and start pressing backwards. (Note don't actaully start flying backwards)
Then, go forwards again but this time, hold your walk key.
Continue to do this until you reach the landing runway you are planning to land on. (Note, when you about to hit the runway start holding the backwards key)
Ta-da, If you did it right you should have landed good.