NAME_________________________________ CLASS____________________ DATE____________

- What happens to lift when the surface area of an airplane's
wings is increased?

_______________________________

- Open the Web page
(http://en.wikipedia.org/wiki/Boeing_747),
or a search engine, to find information about the
Boeing 747. What is its wing
area?_________________________

- Refer to the above question. What is the Boeing 747's takeoff
weight?__________________

- How many passengers can the Boeing 747 carry?
______________________

- What is the ratio of the Boeing 747's takeoff weight to its
wing area? __________________

- Now use the Web page
(http://en.wikipedia.org/wiki/Boeing_777),
or a search engine,
to find information about the Boeing 777. What is its wing area?

___________

- What is the takeoff weight of the Boeing 777?
___________________

- How many passengers can the Boeing 777 carry?
___________________

- What is the ratio of the Boeing 777's takeoff weight to its
wing area? _______________

- Look up the DC-8 at
(http://en.wikipedia.org/wiki/DC-8),
or use a search engine.
What is its wing
area? __________________

- What is the DC-8's takeoff weight? ______________________

- How many passengers can the DC-8 carry?
_______________________

- What is the ratio of the DC-8's takeoff weight to its wing
area?___________________

- Find the DC-10 at
(http://en.wikipedia.org/wiki/DC-10),
or use a search engine
. What is its wing
area? ____________________

- What is the DC-10's takeoff weight?
_________________________

- How many passengers can the DC-10 carry?
__________________________

- What is the ratio of the DC-10's takeoff weight to its wing
area? _______________

- If both the Boeing 777 and the DC-10 weighed 130,000 kg, which
airplane's wings would generate the most lift?
______________________

- Which of the two planes in the previous question has a greater
possible takeoff weight? ___________________

- Which two of the four jet airplanes above have the closest
takeoff weight to wing area ratios? ________________________

- Explain the relationships among lift, takeoff weight, and wing
area. You may want to read the slide called Forces
on an Airplane.
___________________________________________

- Do you see a relationship between wing span and passenger
number? _________________

- Where are slats located and how do they affect an airplane's
lift?______________________

- Where are the flaps located? ____________________