Originally Posted by john smith
With the new standard of FMS (H2A) the computer will advise you to check performance figures again if the V speeds are inconsistent with the weight entered in the INIT B page.
This applies to A320 series aircraft. I'm not sure if the same feature is available on the A330/340.
We have the latest standard. Tried this today - Entered a V2 10kt below the min V2 speed for our takeoff config and weight. It was accepted without error (and a second one far lower too!) what it didn't like though was a V2 below the entered V1/R.