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Assignment 2.6_Standard Atmosphere-Airspeed Exercise.doc

Assignment 2.6_Standard Atmosphere-Airspeed Exercise.doc -...

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Exercise 2: Standard Atmosphere - Airspeed The first part of this week’s assignment is to choose and research an airport of interest. This can be an airfield near you or an interesting place you always wanted to explore further. The important thing is that it should have some regular weather reporting capability, in order to enable your research . For your research you can utilize the official FAA Airport/Facility Directory or any suitable and available online flight planning software, such as: http://www.aopa.org/airports/ or http://skyvector.com/airports (AOPA’s flight planning tool has the advantage of directly depicting current weather as well). For weather information, you can use the official NOAA aviation weather from https://www.aviationweather.gov/metar or any other available flight planning tool – see AOPA link above. Notice that un-decoded METAR temperatures are usually given in °C; however, if using the AOPA tool, the weather report will already be translated for you with temperatures in °F and altimeter setting given by an A followed by four digits for the in Hg setting with two decimals. See picture below.) This document was developed for online learning in ASCI 309: Aerodynamics File name: Ex_2_Std_Atm_Airspeed Updated: 06/16/2015 Field Elevation Temp in °F Altimeter Setting, i.e. 30.13 in Hg Time ICAO Identifier
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1. Selected Airfield: Spokane International Airport 2. ICAO identifier (the ICAO identifier is the 4-letter airport code, starting with a ‘K’ for the continental US): KGEG 3. Field elevation [ft MSL] (field elevation can be found in the location information section at skyvector.com or the overview section at AOPA’s flight planning tool): 2,385 ft (Surveyed) 4. Current weather report at the time of work on this assignment: a) Date and time: 03/31/2018 & 8:53 a.m. PST b) Current altimeter setting [in Hg] : 30.16 in. Hg c) Current temperature [°F or °C, but stay consistent] : 42.1 ° F or 5 °C When operating at an airfield within the US, the altimeter is adjusted according to current conditions (i.e. the reported altimeter setting that you found) in order to always indicate the correct field elevation when on the ground. Therefore, your indicated altitude will remain equal
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