## ASCI 309 Week 1 Discussion | Assignment Help | Embry Riddle Aeronautical University

ASCI 309 Week 1 Discussion  | Assignment Help | Embry Riddle Aeronautical University

1.3 - Individual Warm-Up: Physical Laws and the Atmosphere

Since no teams are established for the ARAPA project yet, this week you will work independently on an individual warm-up project. This project allows you to chose either of the following two assignment options:

Create a short instructional presentation (maximum of 6 content slides) that explains/details your selected example and how you arrived at your results for all of the requested physical aspects. Detailed inputs and desired calculations are summarized in Option A Details. If you would like to print the activity instructions, be sure to expand all of the panels before using the print feature for your browser.

Please proceed to the Option A - Details section before continuing to the next page.

Create an instructional poster that explains/details your selected example and how you arrived at your results for all of the requested atmospheric aspects. Detailed inputs and desired calculations are summarized in Option B Details. If you would like to print the activity instructions, be sure to expand all of the panels before using the print feature for your browser.

Please proceed to the Option B - Details section before continuing to the next page.

From the following list of airports, please select one example to solve the assignment problems.

·         Albuquerque, NM

·         Amarillo, TX

·         Broomfield, CO

·         Butte, MT

·         El Paso, TX

·         Flagstaff, AZ

·         Gunnison, CO

·         Hayden, CO

·         Jackson Hole, WY

·         Salt Lake City, UT

For your selected airport, research and present the following information within your instructional poster (for more inputs on how to derive the desired information, please see the resources section further below):

1.    Airport

2.    ICAO identifier

3.    Field elevation

4.    Current weather conditions (mainly altimeter & temp)

Utilizing the above researched information, derive and present on your poster the following atmospheric properties:

A.    Pressure altitude (PA)

B.    Pressure ratio (delta)

C.   Temperature ratio (theta)

D.   Density ratio (sigma)

E.    Density altitude (DA; no humidity considered)

F.    Density altitude with 100% relative humidity

#### Assignment Resources

To work on your selected airport, consider the official FAA airport/facility directory or any suitable and available online flight planning software, such as any of the following:

·         Airport Search by AOPA (Links to an external site.) (AOPA’s flight planning tool has the advantage of directly depicting current weather as well)

·         Search for Airports by SkyVector (Links to an external site.)

·         Airport Information by AirNav (Links to an external site.)

·         any other suitable source

To retrieve the required information from the tools, see the following screenshot (example from the AOPA webpage):

·         Dole, Lewis, Badick, and Johnson (2017), Chapter 2

o    Equation summary p. 27 in Dole, Lewis, Badick, and Johnson (2017)

·         1.2 Lectures and Tutorials

o    Atmosphere and Altitude

§  Altimeter setting rule of thumb: Lapse rate of 1 in. Hg = 1000 ft, i.e. 00.01 in. Hg difference from standard = 10 ft change from the field elevation, with standard atmospheric altimeter setting being 29.92 in. Hg (Watch for the correct direction of signs: an increase in altitude means a decrease in pressure and vice versa)

o    Tutorials

§  ASCI 309 atmosphere inputs (12:46)

·

o

§  ASCI 309 airportinfo (1) (4:29)

§  ASCI 309 Table Interpolation Example (13:02)

§  ASCI 309 Atm Table Reading (12:43)

Tables

·         Standard Atmosphere table (Table 2.1, Dole et al., 2017)

o    Table interpolation - review the tutorial video

·         Online Tools:

o    Density Altitude Calculator (Links to an external site.) (Make sure to select the correct units in the top/input area of the calculator and read the correct units in the bottom/results area.)

Common Errors

·         Application of the temperature ratio:

o    In contrast to the pressure altitude that is derived from altimeter setting (see rule of thumb above) and the specific field elevation, the temperature ratio is universally the ratio between actual (i.e., "as is" from the weather report; of course, converted into standard units) and standard sea-level values (also converted into standard units).

·         Standard Atmosphere Table use and interpolation:

o    The table is needed twice, once to derive a pressure ratio from a pressure altitude (enter with altitude and read out pressure ratio column; interpolation required), and second, to determine density altitude from a known density ratio (enter with sigma in density ratio column and read out altitude in the front; interpolation also required).

Please proceed to the section below before continuing to the next page.

For either of the two available options, treat the presentation/poster as an instructional aid for someone not familiar with the depicted relationships and their application to aviation. Be creative, and be sure to cover all aspects comprehensively and in a way that is comprehensible to someone not familiar with the course content. For this activity and for other presentation activities throughout the course review the following tutorial video:

·         ASCI 309 Screencapture Tutorial (1:30)

Upload your assignment in the discussion area. Make sure your assignment is in a commonly readable file format (e.g., .doc, .docx, .pdf, .ppt, .pptx, .jpg, .tiff, .png). Use a naming convention that includes the module assignment number, your choice A or B, and your last name (e.g., Act1xChoiceBSmith).

After you completed and uploaded your own presentation/poster, review at least one other student's work, making sure to select a work that is opposite of your own choice (i.e., if you selected the Option A - Physical Laws presentation, review an Option B Atmospheric Relationships poster). In your peer review, address at least the following three areas: completeness & correctness of the presented content, creativity & presentation style, and instructional value.