Airlines by now should be benefiting from both meteorological forecasts of atmospheric turbulence and today’s actionable intelligence about the real-time effects of that turbulence on large commercial jets. Unfortunately, say several turbulence-detection pioneers in the United States, the industry is still missing a key piece — enough airline participation — needed to accelerate progress in reducing, if not eliminating, unexpected encounters with in-flight turbulence. Such encounters still take a steady toll in injuries and, in the rarest cases, fatalities.