Jeff, it depends. Some aircraft, such as regional jets or general aviation,
don't go above 15000 meters.  Some of the larger aircraft may have the
requirement to go to 19000 meters as that is sometimes slightly above the
transcontinental cruising altitude.  I have the requirements for military
aircraft go as high as 79,000 feet (24,079 meters).


Doug Pauls
Principal Materials and Process Engineer
Rockwell Collins

On Thu, Feb 25, 2016 at 10:21 AM, McGlaughlin, Jeffrey A <
[log in to unmask]> wrote:

> Ok - IPC -2221 Table 6-1 gives spacing values for sea-level to 3050m and
> for over 3050m. Are these the only applicable divisions or should I be
> concerned about altitudes of over 15000m?
>
> Jeffrey McGlaughlin, C.I.D.
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