courses:206a:instruments
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courses:206a:instruments [2018/08/18 02:13] evan [Flight Fundamentals] |
courses:206a:instruments [2018/11/13 18:33] (current) evan |
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| ===== Compass Principles ===== | ===== Compass Principles ===== | ||
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| + | Deviation: caused by local magnetic fields within the aircraft. Deviation error is different on each heading | ||
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| + | Deviation card shows what the mechanics are unable to correct/adjust. | ||
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| + | Magnetic Dip: indication errors caused by an unbalanced compass | ||
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| + | Teter-totter balance analogy--@magnetic equator north and south forces are balanced. Increase latitude, north pole is pulling down more than south pole. | ||
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| + | Above 60° latitude, compass is unusable—too much dip | ||
| ===== Basic Instrument Scan ===== | ===== Basic Instrument Scan ===== | ||
| - | ===== Spatial Disorientation & In-Flight Illusions ===== | + | The "Music Scan" on steam vs. G1000 |
| - | (See Instrument Flying Handbook p.15) | + | |
| - | The Leans -- when a banked attitude, to the left for example, may be entered too slowly to set in motion the fluid in the “roll” semicircular tubes. | + | Fundamental Skills of Instrument Flying (IFH p.4-5) |
| + | - Instrument Cross-Check | ||
| + | - Instrument Interpretation | ||
| + | - Aircraft Control | ||
| - | Coriolis Illusion -- The pilot has been in a turn long enough for the fluid in the ear canal to move at the same speed as the canal. | + | ===== Spatial Disorientation & In-Flight Illusions ===== |
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| + | [[topics:spatial_disorientation_illusions|Spatial Disorientation and Illusions]] | ||
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| Primary Pitch: VSI | Primary Pitch: VSI | ||
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| + | ==== Turns ==== | ||
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| + | To a heading - primary bank: DG | ||
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| + | Standard rate - primary bank: Turn Coordinator | ||
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| + | ==== Glide (Emergency) ==== | ||
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| + | Primary Pitch: Airspeed Indicator | ||
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| + | Primary Bank: Heading Indicator (or Compass if vac inop) | ||
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| ===== Magnetic Compass Turns ===== | ===== Magnetic Compass Turns ===== | ||
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| + | When making a turn from a northerly heading, the compass briefly gives an indication of a turn in the opposite direction. When making a turn from the south, it gives an indication of a turn in the correct direction but at a faster rate. | ||
| ===== Timed Turns ===== | ===== Timed Turns ===== | ||
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| + | Standard Rate Turns: 3°heading/second: 2 minutes for 360° turn. | ||
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| + | Bank angle required: Standard rate turns: 15% of TAS or ~20% IAS (easier to calculate) | ||
| ===== Vertical S Maneuvers ===== | ===== Vertical S Maneuvers ===== | ||
courses/206a/instruments.1534558416.txt.gz · Last modified: 2018/08/18 02:13 by evan
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