In fact, there is a light blue radial line painted (or displayed) on the airspee...

sokoloff on May 19, 2015 | parent | context | favorite | on: A400M Airbus Flier crashed because of software iss...

In fact, there is a light blue radial line painted (or displayed) on the airspeed indicator for exactly this situation, so the crew doesn't have to remember the value in a high-stress situation.