SAE AMS3715 Core, Honeycomb, Glass/Phenolic
作者:标准资料网 时间:2024-05-02 06:14:10 浏览:8383
来源:标准资料网
Product Code:SAE AMS3715
Title:Core, Honeycomb, Glass/Phenolic
Issuing Committee:Ams P Polymeric Materials Committee
Scope:This specification covers expanded honeycomb core made of glass fabric impregnated with phenolic resin and supplied in the form of blocks, slices, and ordered shapes.
Product Code:SAE AIR1168/4
Title:Ice, Rain, Fog, and Frost Protection
Issuing Committee:Ac-9c Aircraft Icing Technology Committee
Scope:The ability of aircraft to fly in adverse weather conditions is a requirement for most military and commercial aircraft. Ice buildups in critical areas can affect flight safety by adding drag and weight and thus adversely affecting stability. Supercooled water droplets may exist in clouds at ambient temperatures far below the freezing point. When the droplets are disturbed by an aircraft flying through them, the droplets will impinge and may freeze on airfoil surfaces, radomes, engine inlets, windshields, and other areas, resulting in weight and drag penalties or obstruction of vision through transparent surfaces. Some means, therefore, must be provided to prevent large ice buildups in critical areas. The inner surfaces of most cockpit transparencies are susceptible to condensation in the form of fog or frost during most normal aircraft operation, particularly when descending from high altitude flight, unless fog and frost protection systems are provided. Fog will form on the inside surface of the windshield whenever that surface is below the cockpit air dew point. If the surface temperature is below 32 degrees F, frost will form. Removal of rain from the windshields to maintain pilot visibility is accomplished by hot air jet blast or by windshield wipers. A rain repellent fluid is sometimes used in conjunction with either system for increased rain removal efficiency.MIL-STD-274B (NOTICE 1), MILITARY STANDARD, GAGE, PLUG, THREAD, SETTING, CLASS W, FOR LO (NOT GO), GAGES, UNIFIED STANDARD CLASSES 2A AND 3A AND AMERICAN NATIONAL STANDARD CLASS 3 EXTERNAL THREADS (28 AUG 1964).
