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Givens: Altitude: FL310 (31,000 ft Pressure Altitude) Indicated Airspeed: 250 KIAS Indicated Outside Air Temperature (IOAT) or Total...

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Physics

Givens:

Altitude: FL310 (31,000 ft Pressure Altitude)

Indicated Airspeed: 250 KIAS

Indicated Outside Air Temperature (IOAT) or Total Temperature:-30 deg C

Figure 2.1 for Atmosphere

Figure 3.1 Position Errors

Figure 3.2 Compressibility Errors

Figure 11.2 or Tt = Ta (1 + .2M2) Temperature Ram Rise

1. Find CAS (Calibrated Airspeed in kts).

2. Find EAS (Equivalent Airspeed in kts).

3. Find Pressure Ratio: .

4. Find Mach.

5. Find Actual Outside Air Temperature (ambienttemperature).

6. Find Temperature Ram Rise.

7. Find Density Ratio: .

8. Find TAS, True Airspeed in kts.

9. If you are landing into an airfield in mountainous terrain ata field elevation of 3,000 ft

MSL (Mean Sea Level) and the field outside air temperature is-24 deg C, according to

AC 91-XX Draft Appendix 2, how should you adjust your approacharrival procedures

with a Final Approach Fix (FAF) at 5,000 ft MSL and your MinimumDescent Altitude

(MDA) at 3500 ft MSL?

Answer & Explanation Solved by verified expert
4.4 Ratings (760 Votes)
Using the compressible form of Bernoullis equation and assumingisentropic conditions the last two equations for EAS and CAS arederivedSubsonic Fanno Flow for a Given Entrance Mach Number andPressure RatioThis situation pose a simple mathematical problem while thephysical situation occurs in cases where a specific flow rate isrequired with a given pressure ratio range this problem wasconsidered by some to be somewhat complicated The specific flowrate can be converted to entrance Mach number and this simplifiesthe problem Thus the problem is reduced to find for givenentrance Mach and given pressure ratio calculatethe flow parameters like the exit Mach number The procedure is based on the    See Answer
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