Marko Ramius
Vilnius Nastavnic
- Joined
- Nov 25, 2001
- Posts
- 378
dispatchguy said:
Plus, from what I remember hearing somewhere, doesnt GL only dispatch Method I (terrain clearance), and doesnt use Method II (driftdown) at all (I heard that at Air Cheese, not sure how accurate that actually is).
I'm not sure what you call Lakes' dispatch method-maybe Method 1.5? They aren't approved for driftdown in the D model, which in most quadrants outside of northwestern Iowa would mean no Method II, but of course it's not that simple. They break the route into segments and give each segment a "diversionary airport". The DEN-DRO route is usually Rocki3.HBU...DRO and they'll put something like, "diversionary airport east of HBU is DEN, DRO west of HBU." Of course the term "diversionary airport" isn't found anywhere in 121.191 a1 or a2, but that doesn't matter does it? Along those lines, the reg says that you must use the approved enroute net flight path data to figure your performance capability. They don't have driftdown charts, only SE service ceiling and SE climb gradient charts. The former is far more liberal than the latter, so you can guess which they use. Based on what the charts actually represent and the conditions used to derive them it would make more sense to use the gradient charts, but even then it should be method I not II. Of course there is no method to calculate adverse winds or the like either as required by Method II. Bottom line, act like you don't know what any of this means during any oral or examination and everything will be OK!