Hello all, Another research question for you:

With holding patterns, we have the "protected side" and the "non-protected" side. I've heard a lot of figures banded about for just how protected these zones are:

Example:

Protected side = 5nm from hold radial
Unprotected side = 2-3 from hold radial. (To take into account any possible wind-drift if you're a bad pilot)

Obviously holds are not created with ZERO tolerance on the unprotected side otherwise we'd be holding right next to cliff faces all the time.

I think it makes sense that the "unprotected" side must have SOME kind of built in protection - if only to make parallel entries feasible. My question is, where is this information written?

Where does it say exactly how much airspace is "protected" on both sides of the inbound hold radial?

Not that it matters....I fly in FL.....zero terrain......a billion old people.

Thanks for your help!!