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Pitot
Tube Activity
If so instructed by your teacher, print out a worksheet
page for these problems.
DEFINITIONS:
Define the following terms.
- Force (F) -
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- Mass (m) -
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- Pressure (p) -
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- Velocity (V) -
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- Density (r) -
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- UNIT ANALYSIS:
Complete the table giving the correct unit of measurement in both
the English and the Metric systems. You will use this information when
solving the problems shown below.
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QUANTITY
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ENGLISH UNIT
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METRIC UNIT
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LENGTH
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AREA
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VOLUME
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FORCE
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MASS
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______________
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PRESSURE
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______________
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VELOCITY
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______________
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DENSITY
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______________
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_______________
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*NOTE:
For practical purposes, velocity is measured in KNOTS. One knot = 1.69
feet/second.
PROBLEMS:
Solve each problem. Make sure all units agree!!
- Find the total
air pressure detected by the pitot tube for a Cessna 182 airplane
flying at a pressure altitude of 10,000 feet (static pressure of 1455.6
lb/ft2 ) and a speed of 120 knots if the air density is 0.00162
slugs/ft3.
- Find the difference
in pressure (pt-ps) for the same conditions described
above if the airplane speeds up to 160 knots.
- If the total air
pressure for the same Cessna 182 is measured at 1478.7 lb/ft2,
what is the new velocity in knots of the airplane?
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