pub const DEFAULT_WIND_GOOD_FOR: Duration;Expand description
How long a wind reading stays current by default.
A little more forgiving than the three seconds a GPS fix is typically
given – ordinary wind instruments update at a slower, less regular
cadence than a GPS’s steady 1 Hz – but the same principle: a reading
that stopped arriving must not go on describing the actual wind.
WindTracker::wind takes this as a parameter rather than baking it
in, so a caller with reason to judge differently is free to.