Skip to main content

Developing Improved Civil Aircraft Arresting Systems (2009) / Chapter Skim
Currently Skimming:

5.2. Results and Discussion
Pages 39-42

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 39...
... Figure 5-2 shows the mean decelerations and error bars representing one standard deviation, the data of which was extracted manually from ESCO-provided deceleration plots. As a brief aside, we note here that the B747 has less than one-half of the deceleration of a CRJ-200, which underscores an inherent limitation of crushable material arrestors.
Read the entire page →
From page 40...
... As was mentioned in Section 3.6, the reliability of the current EMAS design after installation is uncertain because 40 Input Parameters to Vary Output Parameters from Models Exit speed – arbitrary Geometry variations • Width • Setback Aircraft type • CRJ200 ER • B737-800 • B747-400 Aircraft braking condition • Braking • Skidding • Free-rolling Stopping distance Reliability • DOT/FAA/CT-93/80 exit speed probability curve • Revised exit speed probability curve Cost • FAA Order 5200.9 • Survey data Table 5-1. Sensitivity analysis parameters.
Read the entire page →
From page 41...
... In addition, the estimated cost of an EMAS with an 80-knot design exit speed is about 30% greater than the cost of an EMAS with a 70-knot design speed. It should be noted that these cost impacts would apply to any type of EMAS and would not be confined to the current EMAS design.
Read the entire page →
From page 42...
... . Therefore, the cost increase proportionalities shown are supported by cost data and the physics of aircraft arrest.
Read the entire page →

Key Terms

  • design exit
  • sensitivity analysis
  • standard exit
  • exit speeds
  • active arrestors

  • speed probability
  • emas design
  • minimum exit
  • estimated cost
  • emas advisory

  • probability curve
  • arrestor bed
  • current emas
  • active arrestor
  • cumulative percentage

  • reliability impact
  • overrunning aircraft
  • total initial
  • revised exit
  • probability curves

  • substantial amount
  • civil aircraft
  • analysis parameters
  • recurring maintenance
  • presume solid

  • analysis investigated
  • cost parameter
  • bed reliability
  • standard design
  • emas designed


    • This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
    More information on Chapter Skim is available.