Code of Federal Regulations: Containing a Codification of Documents of General Applicability and Future Effect as of December 31, 1948, with Ancillaries and Index

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U.S. General Services Administration, National Archives and Records Service, Office of the Federal Register, 1952
 

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Էջ ix - Title 19 — Customs Duties I Bureau of Customs, Department of the Treasury II United States Tariff Commission Title 20 — Employees' Benefits I Bureau of Employees...
Էջ 47 - When applied to sheet or structural members, fire-resistant material means a material which will withstand heat at least as well as aluminum alloy in dimensions appropriate for the purpose for which it Is to be used. When applied to fluid-carrying lines, other flammable fluid system...
Էջ 443 - Union of South Africa, Union of Soviet Socialist Republics, United Kingdom of Great Britain and Northern Ireland...
Էջ 367 - Critical altitude" means the maximum altitude at which, in standard atmosphere, it is possible to maintain, at a specified rotational speed, a specified power or a specified manifold pressure. Unless otherwise stated, the critical altitude is the maximum altitude at which it is possible to maintain, at the maximum continuous rotational speed, one of the following: (1) The maximum continuous power, in the case of engines for which this power rating is the same at sea level and at the rated altitude.
Էջ 64 - A pull shall be required to obtain and maintain speeds below the specified trim speed and a push to obtain and maintain speeds above the specified trim speed. This shall be so at any speed which can be obtained without excessive control force, except that such speeds need not be greater than the appropriate maximum permissible speed or less than the minimum speed in steady unstalled flight. (b) The air speed shall return to within 10 percent of the original trim speed when the control force is slowly...
Էջ 167 - Protection. All members of the structure shall be suitably protected against deterioration or loss of strength in service due to weathering, corrosion, abrasion, or other causes. In seaplanes, special...
Էջ 480 - Issuance (b) Any person desiring to operate as an air carrier may file with the Administrator an application for an air carrier operating certificate. If the Administrator finds, after investigation, that such person is properly and adequately equipped and able to conduct a safe operation in accordance with the requirements of this Act and the rules, regulations, and standards prescribed thereunder, he shall issue an air carrier operating certificate to such person.
Էջ 249 - Turnbuckles attached to parts having angular motion shall be installed to prevent positively any binding throughout the range of travel. (10) Provision for visual inspection shall be made at all fairleads, pulleys, terminals, and turnbuckles. (b) Joints. (1) Control system Joints subjected to angular motion in push-pull systems, excepting ball and roller bearing systems, shall incorporate a special factor of not less than 3.33 with respect to the ultimate bearing strength of the softest material...
Էջ 221 - ... directional and lateral stability, (a) The static directional stability, as shown by the tendency to recover from a skid with rudder free, shall be positive with all landing gear and flap positions and symmetrical power conditions, at all speeds from 1.2 V>, up to the operating limit speed.
Էջ 209 - ... following: (1) The maximum continuous power, in the case of engines for which this power rating is the same at sea level and at the rated altitude. (2) The maximum continuous rated manifold pressure, in the case of engines, the maximum continuous power of which is governed by a constant manifold pressure. Critical engine means the engine whose failure would most adversely affect the performance or handling qualities of an aircraft.

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