R: Challenger Space Shuttle O-Ring Data

orings {DPpackage} | R Documentation

## Challenger Space Shuttle O-Ring Data

### Description

The motivation for collecting this database was the explosion of the USA Space Shuttle Challenger on 28 January, 1986. The Rogers commission concluded that the Challenger accident was caused by gas leak through the 6 o-ring joints of the shuttle. Dalal, Fowlkes and Hoadley (1989) looked at the number of distressed o-rings (among the 6) versus launch temperature (Temperture) and pressure (Pressure) for 23 previous shuttle flights. The previous shuttles were launched at temperatures between 53ºF and 81ºF.

### Usage

    data(orings)

### Format

A data frame with 138 observations on the following 4 variables.

ThermalDistress

  a numeric vector indicating wether the o-ring experienced thermal distress

Temperature

  a numeric vector giving the launch temperature (degrees F)

Pressure

  a numeric vector giving the leak-check pressure (psi)

Flight

  a numeric vector giving the temporal order of flight

### Source

Dalal, S.R., Fowlkes, E.B., and Hoadley, B. (1989). Risk analysis of space shuttle : Pre-Challenger Prediction of Failure, Journal of the American Statistical Association, 84: 945 - 957.

### References

Dalal, S.R., Fowlkes, E.B., and Hoadley, B. (1989). Risk analysis of space shuttle : Pre-Challenger Prediction of Failure, Journal of the American Statistical Association, 84: 945 - 957.

Lavine, M. (1991). Problems in extrapolation illustrated with space shuttle O-ring data. Journal of the American Statistical Association, 86: 919-922.

Martz, H. F., Zimmer, W.J. (1992). The risk of catastrophic failure of the solid rocket boosters on the space shuttle. The American Statistician, 46: 42-47.

### Examples

    data(orings)
    ## maybe str(orings) ; plot(orings) ...

[Package DPpackage version 1.1-7.4 Index]