with all due respect this is total rubbish- given that radio waves travel at the speed of light (300,000,000 meter per sec 186000mps), the effect of an aircraft travelling at 500 knots would not have any noticable impact.
how can it be total rubbish when its true.
as you say would not have any noticeable effect therefore does have some effect therefore the statement is correct and not total rubbish at all.
so with all due respect dont say that something is total rubbish when its true.
regards
Geoff