"Roy Smith" wrote in message
...

You're at 9000 MSL, the elevation of the VORTAC isn't even
published, but you can guess it's about 1000 MSL, your true airspeed is
170 kts, you've got a 30 kt left-quartering tailwind, and you need to
make a 70 degree turn to the right; quick, at what DME readout should
you start your turn?


VOR site elevations are published in the Airport/Facility Directory.
Elevation at BJC VOR/DME is 5734 MSL.