The in-flight visibility is less than 3 miles and the ceiling is less than 1,500 feet within Class E airspace. Instrument pilots who don’t do those things may end up in the accident statistics. The operation of an airport rotating beacon during daylight hours may indicate that. Figure 1 shows the airflow around an airplane wing. So if you practice partial panel flying, know your equipment, and include equipment failure in your planning process you can turn a vacuum failure into a safe approach and landing. The presence of the aircraft in the airstream causes input errors to the measuring instruments the aircraft disturbs the air that it flies through, thereby also disturbing the airdata measurements. If you have to rely on the magnetic compass, you better brush up on those compass errors. Know your GPS and what’s available to use in this situation. This is usually better than that old magnetic compass. Most GPS’s have one or more screens that can provide backup heading information. If a radar approach is not available, select the approach that is easiest for you to execute given the equipment you have. Ask the controller for an ASR or PAR no gyro approach if available.
You don’t want to have to make a partial panel approach to low minimums if you can help it. Having declared an emergency, you might consider diverting to another airport if you can find better weather. Declaring an emergency will get you the attention you need. Most ATC controllers are not instrument rated pilots and even if they are they are not acquainted with the equipment in your aircraft. Keep in mind, you wont know exactly which questions you got wrong, only the general subjects missed of the IFR ACS. Simply telling the controller you have a vacuum failure does not communicate your real situation. Your Instrument Rating ACS (Once known as PLT) missed question codes will be listed below, and you can see which subject areas to study more before your checkride. Partial panel approaches are still required on the Instrument flight test and on Instrument competency checks and we surely want to be as proficient as we were when we took our instrument test.Īccident history indicates that a vacuum failure in hard IFR should be considered an emergency situation and an emergency should be declared. The only way to maintain proficiency in this area is to practice. If you are an instrument pilot and are not practicing partial panel flying, you are setting yourself up for a big problem. Navigation Basics: Fundamental concepts of navigation are explained, such as direction, distance and their representation in aeronautical charts. “A good topic since we still have vacuum pumps and gyros that can fail.
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