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If so instructed by your teacher, print out a worksheet page for these problems.
Open the slide called The Lift Equation (with text). Study the labeled diagrams and read the explanation of the lift equation.

 

The Lift Equation: Click the image for a detailed description

  1.  Identify each letter in the lift equation and list acceptable units for each quantity.

  2.  Open the web page AirPage Index (http://www.pilotportal.com/guides/search.cfm) and look up the Boeing 747-100B. What is its wing area?

  3. If the Boeing 747 above is cruising at 940 km/h, the density of the air is 1.20 g/L, and the lift coefficient is 1, what is the lift ?

  4. Use the AirPage Index (http://www.pilotportal.com/guides/search.cfm) to find the Boeing 777-200. What is its wing area?

  5. If the Boeing 777 is cruising at the same velocity under the same conditions as the 747 above, what is its lift?

  6. Look up the DC-8-50 in the AirPage Index (http://www.pilotportal.com/guides/search.cfm). What is its wing area?

  7. What is the DC-8's cruising velocity?

  8. If the air density is 1.26 g/L and the lift coefficient is 1.5, what is the lift of the DC-8?

  9. Find the F/A-18A Hornet in the AirPage Index (http://www.pilotportal.com/guides/search.cfm). What is its wing area?
    F/A-18 A Hornet

     

  10. What is the F/A-18A's lift while it flies at 700 mph, the air density is 1.31 g/L, and the lift coefficient is 1.8?
Please send any comments to:
Curator: Tom.Benson@grc.nasa.gov
Responsible Official: Kathy.Zona@grc.nasa.gov