Helicopter Aerodynamics Films Video DVD

Helicopter  Aerodynamics Films Video DVD

• ROTOR BLADE ACTION - Rotation, Feathering, Flapping, Hunting
• THE STABILIZER BAR Control pitch, roll, gyro properties, stability
• DISSYMMETRY OF LIFT Study blades, exerting lift in advanced half of rotation.
• ROTOR BLADE ANGLES Use of lift forces, pitch angle, angle of attack, wind.

DISCLAIMER These come from vintage old training, sales or promotional films, declassified USAF films, old department of defense films; some are from old 16mm films, All are public domain with no copy writes We are not the original producers and are not responsible for any recording imperfections We deal exclusively with original content which: Has never been protected by copyright, OR Was once covered by a copyright which has since expired, OR Has been designated as "Distribution Unlimited" by the copyright holder, OR Is being distributed with permission. These materials are sold for entertainment purposes only They are outdated and should not be used in anyway for other purpose These are military DVD's so they come new in plain white packaging The works presented on this DVD(s) are in the public domain. ..The content has been fully researched and found that all copyrights have expired or lapsed through non-renewal.  In accordance with policy on recordable media, we claim ownership and rights to this DVD(s) and are legally authorized to replicate the content without permission or licensing.

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Video : B&W / Color,  Time :19  minutes  Format : DVD-R / DVD+R    Price : $14.85 + S&H //   Average  Delivery Time : 10 Business days  ( Two weeks ) //  No Label or Artwork