I have a coffee time question. Was asked this by a student once. Where is the maximum speed of airflow under the disc when in an IGE hover. let's say for arguments sake the a/c is a R22, about 10' skid height above your head, where would the maximum speed of the airflow be measured and what speed would it be?
a/ Just below the disc/rotors?
b/ Ground level where direction is more likely to change?
c/ outside the disc at ground level?
d/ none of the above or other?
