How much do spoilers increase drag coefficient?

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SUMMARY

The discussion centers on estimating the drag coefficient increase due to spoilers on aircraft, starting from an original coefficient of 0.02689. Participants emphasize that spoilers can be approximated as flat plates for initial calculations. References to authoritative sources such as Raymer's book, AIAA journal papers, and NASA technical documents are suggested for deeper insights. The conversation highlights the importance of understanding the specific aircraft model being analyzed to refine drag estimates.

PREREQUISITES
  • Understanding of drag coefficients in aerodynamics
  • Familiarity with aircraft design principles
  • Knowledge of spoiler functionality and impact on airflow
  • Access to aerospace engineering literature, such as Raymer's book
NEXT STEPS
  • Research the effects of spoilers on drag coefficients in various aircraft models
  • Study Raymer's "Aircraft Design: A Conceptual Approach" for foundational knowledge
  • Explore AIAA journal papers for case studies on drag reduction techniques
  • Investigate NASA technical documents related to aerodynamic modeling
USEFUL FOR

Aerospace engineers, aircraft designers, and students studying aerodynamics who are interested in the impact of spoilers on drag coefficients and aircraft performance modeling.

lukus09
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Approximetly how much is the drag coefficient if orginally the coefficient is 0.02689. I know it depends on aircraft etc but I am only looking a rough estimate.
 
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As a first order guess, spoilers are a flat plate. But, what outside sources have you consulted?
 
Cyrus said:
As a first order guess, spoilers are a flat plate. But, what outside sources have you consulted?

what do you mean by outside sources?
 
Books, AIAA journal papers, NASA technical server, etc. What exactly are you trying to model here?
 
i am modelling the braking system. so i need to know how much drag the spoilers provide to enhance my model
 
Have you tried Raymers book?
 

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