MyData
15th Jun 2006, 07:44
Here's a question which is probably easy to answer, but is something I can't comprehend at this time.
Looking at a table of take-off and landing factors for a PA28 I notice that in long dry grass the take-off factor is 1.25. This is understandable as the long grass will create friction.
It stands to reason then, that when landing, this friction will bring me to a halt sooner. But this isn't the case, the landing factor is even greater at 1.3.
Why?
For wet grass I can understand why the factors are 1.3 and 1.4 respectively, friction and 'stickyness' on the take off roll, 'sliding' and 'skidding' on landing.
Looking at a table of take-off and landing factors for a PA28 I notice that in long dry grass the take-off factor is 1.25. This is understandable as the long grass will create friction.
It stands to reason then, that when landing, this friction will bring me to a halt sooner. But this isn't the case, the landing factor is even greater at 1.3.
Why?
For wet grass I can understand why the factors are 1.3 and 1.4 respectively, friction and 'stickyness' on the take off roll, 'sliding' and 'skidding' on landing.