CPR-5 Put -50 under Mach Nr index (AIRSPEEDWINDOW) , 0.80 (inner scale) , is TAS 465 (outer scale)!

 

HDG 140o Mag - VAR 20 o W = HDG 120 o TRUE

 

CRP-5 wind side: Put in the TAS 465 under blue dot, now put in the HDG 120 o TRUE , now mark the drift

 

11 Right under the Groundspeed 490 (.)

 

Rotate the (.) , under your TAS and read an W/V of 020/95.....