HMB-14

To be fair, if you've not already flown HMB-15 and HMB-16, you should probably run those first.    They were created to help you acclimate to the "Helicopter Agility Course" in a way that won't frustrate you.   However, if you want to start at the insane difficulty level, you're certainly welcome to.

Since most of the yellow line is obscured, you'll find that you will use the yellow arrows as your primary source of "where's the next gate?"

If you have decided to try to complete this course with a fixed wing aircraft, good luck with that.   It ain't called a helicopter track for nuttin'.    Standard airplanes seem to falter a bit when asked to go vertical...