![]() Of course, I’m not implying that it was easy to aviate by inferring aircraft attitude from the remaining instruments. ![]() As noted, we lost the ability to aviate in the normal way, but usually we had the ability to navigate and communicate. While there are many options of glass retrofit and OEM avionics, where do we start addressing partial panel flying in the age of glass? In the pre-glass days, partial panel definition was simple: losing the AI and HI due to vacuum pump failure. However, even modern glass avionics sometimes have bad days, and the associated failures can be multiple. While logical, data comparing this perceived reliability is illusive. This instrument panel closely approximates the description in the accompanying table of aircraft Bīecause of a lack of mechanical gyros and spinning vacuum pumps, solid-state avionics are perceived to be more reliable. In the latter situation, the turn coordinator had to be retained. However, this exchange resulted in losing the slip/skid ball and impacted an associated rate-based autopilot. With Advisory Circular 91.75 (June 2003), the FAA allowed the exchange of the turn coordinator with an electric attitude indicator. To avoid the single-point-of-failure mode, some airplanes have been fitted with a second vacuum pump, electrically or engine driven. Newer panels were fitted with a visible indicator that the vacuum pump failed, an improvement over the nondescript peanut-sized suction indicator. ![]() In IMC, it’s a true emergency, especially in turbulence, because aircraft attitude had to be inferred from these remaining instruments-a high workload. In the above situation, we were left with the airspeed indicator, altimeter, electric turn coordinator, vertical speed indicator (VSI), and a magnetic compass. As the gyros slowly wound down to a dead stop, along the way they would indicate “interesting” attitudes on the AI and result in even more interesting flight excursions. Therefore, in some aircraft analog altimeters as well as attitude and airspeed indicators as standby flight instruments in case the EFIS display failure.While a practical way to simulate vacuum pump failures, realistically, such a failure would be more insidious. While electronic flight displays are considered more reliable compared to their mechanical counterparts due to the lack of moving elements, they are vulnerable to electrical system failures and software glitches. weather, terrain, airspace and other aircraft can be displayed thus reducing the risks of entering thunderstorms, CFIT, airspace infringement and loss of separation.Īs a result, glass cockpits are a popular choice in modern aircraft, both in the transport and the business aviation categories. This is especially helpful for the horizontal situation display where data for e.g. Different layers of informaion can be presented.As a result, data can be presented in ergonomic ways and warnings can be more noticeable. Electronic displays are linked to computers which allows data from multiple sources to be processed.This also helps pilots to quickly scan all data and assess the situation. A flight display takes less space and is still able to show more information.This allows pilots to more quickly interpret their speed, altitude, position, etc. the reading does not depend on the angle a person looks at the instrument) and the use of precise numerical values (as opposed to an analog display). Values are easier to read both due to the lack of parallax errors (i.e.The use of electronic displays allows for better design solutions - the focus is shifted from trying to fit all necessary instruments into the small space of the cockpit to finding a way to present all importatnt information in a user-friendly way. Another common name for these displays is Electronic Flight Instrument System (EFIS). Examples of EFDs are the Primary Flight Display (PFD) which combines data from several instruments and is the pilot's primary source of flight information and the multi-function display (MFD) which allows data to be presented on multiple pages that are convenient to switch between. A glass cockpit is a cockpit where flight data is shown on Electronic Flight Displays (EFDs) rather than separate gauges for each instrument.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |