Page 4 - Aerodynamics for Engineering Students
P. 4
Frontispiece (see overleaf)
Aircraft wake (photo courtesy of Cessna Aircraft
Company).
This photograph first appeared in the Gallery of Fluid
Motion, Physics of Fluids (published by the American
Institute of Physics), Vol. 5, No. 9, Sept. 1993, p. S5, and
was submitted by Professor Hiroshi Higuchi (Syracuse
University). It shows the wake created by a Cessna Citation
VI flown immediately above the fog bank over Lake Tahoe
at approximately 313 km/h. Aircraft altitude was about
122 m above the lake, and its mass was approximately
8400 kg. The downwash caused the trailing vortices to
descend over the fog layer and disturb it to make the flow
field in the wake visible. The photograph was taken by P.
Bowen for the Cessna Aircraft Company from the tail
gunner’s position in a B-25 flying slightly above and ahead
of the Cessna.
