jerseytom 5 Posted March 20, 2021 Share Posted March 20, 2021 If I start at KBNA with intent to fly to KCLT, when I power up the EFB and go to the Performance page, it lists V1, V2, VR, etc. as expected. However, if I start at KDRO with intent to fly to KPHX, it lists V1, V2, VR as "--". Is this expected functionality? Default aircraft state is cold and dark in both cases. Link to comment Share on other sites More sharing options...
Deputy Sheriffs Secondator 643 Posted March 20, 2021 Deputy Sheriffs Share Posted March 20, 2021 Usually the case with this is that the runway is very short or the airport elevation is very high or combination of these two so that we don't have any reliable information to make calculations with those parameters in which case the EFB is unable to give vspeeds. Link to comment Share on other sites More sharing options...
jerseytom 5 Posted March 20, 2021 Author Share Posted March 20, 2021 I see. In this case runway length at KDRO is 9201' (2804m) at an elevation of 6620' (2018m). Thanks for the reply! Link to comment Share on other sites More sharing options...
Deputy Sheriffs Secondator 643 Posted March 20, 2021 Deputy Sheriffs Share Posted March 20, 2021 Yeah, I think the elevation plays a factor here and the performance goes only up to 6000 feet MSL. Link to comment Share on other sites More sharing options...
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