2  Baltimore,  Md.  3.  Camps — Maryland.  1.  United
States.     Navy  Dept.     11.  National  Audiovisual  Center.
74-704290
[HV434]

359.1
National  .Audiovisual  Center

74


Caution — wake  turbulence.  [Motion  picture]  U.S.
Federal  Aviation  Administration.  1970.  Released  by
National  Audiovisual  Center.
15  min,      sd.      color.      16  mm,

SUMMARY-  Graphically  illustrates  the  phenomenon  of
wing  tip  vortices,  telling  how  they  are  generated,  what  gener-
ates them,  and  their  effects  on  light  aircraft.  Suggests  pilot
actions  in  order  to  avoid  them.
1  Turbulence  2,  V^'akes  (Aerodynamics)  1.  United
States.  Federal  Aviation  Administration.  li.  National
Audiovisual  Center


74-705929*


[TL574.T8]


629.132


National  Audiovisual  Center


74[r753rev


Cavendish  country.  [Motion  picture]     National  Film
Board  of  Canada.  1974.
27  min       sd      color       16  mm.      (West  series)
CREDITS    Producer,  director,     and  writer.  Donald  Brit-
tain:  photographers.  Douglas  Kiefer.  Richard  Leiterman.
SUMMARY  Presents  Cal  Cavendish  of  Calgary.  Alia..
a  Canadian  songwriter  who  is  becoming  popular  in  the  coun-
try and  western  music  market.
1  Cavendish.  Cal.  I.  Canada.  National  Film  Board
II.  Series;  West  series,  [Motion  picturej

75-701448
[ML410]

780.92
National  Film  Board  of  Canada
75


Cavern  formation.  [Motion  picture]     Hubbard  Scien-
tific Co..  1972.
4  mm      si      color,     super  8  mm.      {Water— soil)
Loop  film  in  cartridge
With  study  guide.
SL'MMARY:  Shows  how  ground  water  dissolves  under-
ground limestone  deposits  and  carries  them  away  in  solution,
leaving  underground  caves,  caverns,  and  sink  holes.
L  Caves,  2.  Karsl.  [1.  Caves.  2.  Karstj  I.Hubbard
(T.  N.)  Scientific  Company,  Northbrook,  III.  I!.  Series:  Wa-
ter— soil.  (Motion  picture].
74-703765
[GB602]

551.4
Hubbard  Scientific  Co.  75


Cavity  resonators.  [Motion  picture]  U.S.  Dept.  of
the  Air  Force.  Released  by  National  Audiovisual
Center  [197-?]

28  min.     sd.     b&w      16  mm.
