Propeller Auxiliary Systems Essay Example | Topics and Well Written Essays - 250 words

Propeller Auxiliary Systems - Essay Example The modern anti-icing system known as deicing system is an electric propeller-icing control system that is made up of source of electricity energy, an element resistant to heating, necessary wiring and a control system. In this system, heating elements are often mounted externally or internally on the propeller blades and spinner. Through electrical leads, electric power is transferred from the aircraft system into the propeller hub and finally to the blade elements through flexible connectors. A deice control system is controlled by the pilot by use of on-off switches. There is also a master switch for all deice systems and a toggle switch for each propeller. Many deice systems may also include additional selector switch which is useful in adjusting for heavy or light icing conditions and enhance automatic switching thus do not need manual switching on-off by the pilot (Filippone, 2012). Icing control is achieved by conversion of electrical energy into heat energy within the heating element. Effective and balanced ice removal is crucial in managing excessive vibrations and is accomplished by controlling any variations in the heating current within the blade elements to ensure there is similar degree of heating on opposite sides of the propeller blades (Filippone, 2012). This type of anti-icing system is usually designed to apply power to the heating elements to remove ice after its formation and avoid excessive accumulation. In this regard, proper control of heating intervals is necessary to prevent runback. When heat supplied is just enough to melt the ice formed but insufficient to evaporate water formed, water will flow to unheated areas of the blade, forms ice and results into uncontrolled icing. Cycling timers are therefore used to energize heating elements circuits for a period between fifteen and thirty seconds (Filippone, 2012). Deicing electrical control sy stems consists of ammeters, on-off switches, current limiters and

Write a Constitution Essay Example | Topics and Well Written Essays - 500 words

Write a Constitution - Essay Example The first area of consideration is the means of introducing laws. All group members will be given the chance to propose new laws or regulations at the meetings. This is similar to the United States system that allows Congressmen to introduce laws ("How a bill," 2012). In terms of repealing laws, individuals also have the option of introducing measures to repeal laws or regulations that had previously been passed. Once a law has been introduced by one of the group members there will then be a discussion about the specific law. Proponents and opponents of the law will be given a chance to speak about the reasons they support and don’t support it. After these discussions have taken place group members will be given a chance to vote on whether the law should be passed or rejected. Through majority vote the law will either be passed or denied. All members of the creative writing student organization will be treated as intellectual equals. This is an idea adopted from the United States Constitution ("Constitution of the," 2012). This, however, does not extend to decision-making power and group responsibilities. In these regards, the club will be divided through officer positions. There will be a President of the club that is responsible for organizing the meetings and setting the specific agenda for the day. The Secretary of the club will be responsible for taking notes about the meetings and reciting these notes at the new meetings. The Treasurer of the club will be responsible for financial matters, most notably those that involve the club’s literary magazine. Finally, all general members or officers of the club will be able to introduce ideas or general concepts to the specific project the group is focusing on. The emphasis on intellectual equality is a major consideration within the group. Many organized group e nvironments form and allow a select number of voices to dominate the discussion. Rather than allowing such forms of group dominance, the