Need to find the True Air Speed

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SUMMARY

The discussion centers on calculating the True Air Speed (TAS) of an aircraft with an Indicated Air Speed (IAS) of 200 knots at a pressure altitude of 25,000 feet. A change in velocity pressure (Vp) of +1 knot is noted, but the participants express confusion regarding the implications of this change. The relationship between IAS and TAS is clarified, emphasizing that at higher altitudes, IAS does not equal TAS due to variations in air density.

PREREQUISITES
  • Understanding of Indicated Air Speed (IAS) and True Air Speed (TAS)
  • Knowledge of pressure altitude and its effects on airspeed calculations
  • Familiarity with the concept of velocity pressure (Vp)
  • Basic principles of aerodynamics and atmospheric conditions at altitude
NEXT STEPS
  • Study the relationship between IAS and TAS at various altitudes
  • Learn how to calculate TAS using the formula: TAS = IAS + (pressure altitude correction)
  • Research the effects of temperature and pressure on air density
  • Explore the impact of altitude on aircraft performance metrics
USEFUL FOR

Aerospace engineers, pilots, aviation students, and anyone involved in flight performance analysis will benefit from this discussion.

lomao
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Homework Statement


An aircraft has IAS 200 knot at pressure altitude 25 kft. Change in Vp is +1 knot. If standard day, find the TAS.


Homework Equations





The Attempt at a Solution



Don't know how to do this.
 
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lomao said:

Homework Statement


An aircraft has IAS 200 knot at pressure altitude 25 kft. Change in Vp is +1 knot. If standard day, find the TAS.


Homework Equations





The Attempt at a Solution



Don't know how to do this.

We probably need more info to be of any help. Can you define the problem more completely? What is meant by "Change in Vp is +1 knot."? I assume that IAS = indicated air speed, and TAS is true air speed?

What does being at 25000 feet elevation do to change IAS so it does not match TAS?
 

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