Sport, precision, and competitive aerobatics, and especially air show and demonstration flying are enjoying a rebirth of interest exceeding that of the 1930's. Improved aerobatic airplanes and power plants are in the hands of more civilian pilots than ever before. These aircraft enable the pilot to easily initiate maneuvers which exceed human tolerances, yet not overstress the aircraft. Military aircraft reached this point in World War II and the G-suit was perfected to protect the pilot. The military groups still use the G-suit but this equipment is impractical for most civil aerobatic activities.
The paper provides information on (1) the nature of aerobatic G forces, (2) human physiology in relation to G forces, (3) human tolerances to various levels and times of exposure to G forces, and (4) means by which tolerance to G forces may be increased in terms of the general physical condition and the time during the maneuver when the G forces are imposed.
Cardiovascular effects of endrin insecticide are obscure. Experiments to investigate this phenomenon were carried out on dogs and suggested mechanisms...
The ultimate limitations in flight performance and in future civil air carrier equipment are the limitations imposed by what may be termed “human to...
Links with this icon indicate that you are leaving a Bureau of Transportation
Statistics (BTS)/National Transportation Library (NTL)
Web-based service.
Thank you for visiting.
You are about to access a non-government link outside of
the U.S. Department of Transportation's National
Transportation Library.
Please note: While links to Web sites outside of DOT are
offered for your convenience, when you exit DOT Web sites,
Federal privacy policy and Section 508 of the Rehabilitation
Act (accessibility requirements) no longer apply. In
addition, DOT does not attest to the accuracy, relevance,
timeliness or completeness of information provided by linked
sites. Linking to a Web site does not constitute an
endorsement by DOT of the sponsors of the site or the
products presented on the site. For more information, please
view DOT's Web site linking policy.
To get back to the page you were previously viewing, click
your Cancel button.
United States Department of Transportation
[PDF-1.04 MB]
