
The
Lift Equation Problems
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.
 Identify
each letter in the lift equation and list acceptable units for each
quantity.
 Use
Wikipedia
(http://en.wikipedia.org/wiki/Boeing_747),
or a search engine, to find information about
the Boeing 747. What is its wing area?
 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 ?
 Use
Wikipedia
(http://en.wikipedia.org/wiki/Boeing_777),
or a search engine, to find information about the
Boeing 777. What is its wing area?
 If the Boeing 777
is cruising at the same velocity under the same conditions as the 747
above, what is its lift?
 Look up the DC8
on Wikipedia
(http://en.wikipedia.org/wiki/DC8),
or a search engine.
What is its wing area?
 What is the DC8's
cruising velocity?
 If the air density
is 1.26 g/L and the lift coefficient is 1.5, what is the lift of the
DC8?
 Find the F/A18A
Hornet
on Wikipedia
(http://en.wikipedia.org/wiki/F18),
or use a search engine.
What is its wing area?
 What is the F/A18A's
lift while it flies at 700 mph, the air density is 1.31 g/L, and the
lift coefficient is 1.8?
