Vref
Used during approach.
Vtgt
Correction to Vref due to wind
IN ANY CASE: Vref WILL NOT BE INCREASED MORE THAN 15 KIAS
Vref flaps UP
Vtgt
90-100 KIAS
HWD < 10 Kts then Vref + 5
Vref flaps T/O
Vtgt
90 KIAS
HWD > 10 Kts then 1/2 of HWS
Vref flaps FULL
Vtgt
75 KIAS
XWD, if there are gusts present then add half of gust + wind speed