Ok.
First I do fly Real Life, and I am IFR rated, so I"m feeling a little like a dunce right now.
Last night I flew an IFR flight out of Whiteman to Bakersfield. I'm really doing this more for the clearance delivery readback and enroute changes plus the excuse to play with the simulator
So I'm told in my clearance to fly the Runway 30 standard departure (page L7). Ok, I can do that. BTW, flying a very basic C172 for a lot of this, not playing with gps because I want my skill set to be better.
"Rwy 30, climbing left turn heading 260. ALL AIRCRAFT climb to 4500 via VNY R-325, then climbing left turn direct VNY VOR/DME.
I make it off the ground, turn to 260, climbing expecting an intercept on the radial and then... well I actually didn't ever get there and ATC was nice enough to suggest I turn left direct VNY and the suggested a turn and direct GMN when able. Thanks for that.
But I'm back reading the departure tonight, and looking at the maps and I realize I'm not sure which way I should be flying R-325 if I get there
I think out bound (ie: northwest) to 4500 and then a left turn back to the VOR?
Anyone out there care to hazard a guess? Especially my fellow real world pilots, or those with a lot of sim experience who have got this figured out?
Scott
Whiteman (KWHP) IFR Departure Question
-
- Posts: 20
- Joined: Fri Aug 19, 2011 11:08 pm
- Location: Northern California
Whiteman (KWHP) IFR Departure Question
Scott Woodland, PE, M.ASCE
PPL - ASEL -- IFR
PPL - ASEL -- IFR
-
- Posts: 9939
- Joined: Sat Oct 09, 2010 8:38 pm
- Location: Pompton Plains, NJ
- Contact:
Re: Whiteman (KWHP) IFR Departure Question
VNY R-325 outbound until 4500 then climbing left turn direct VNY.
It can't be the opposite (VNY R-325 inbound), because if that was the case, then the next step would not be a climbing left turn direct VNY, since you'd already be heading to VNY on the R-325 inbound.
My guess is the reason for the climb to 4500 is to ensure that you clear the 3700ft obstacle to the left of the VNY R-325, just NE of TWINE (see the sectional).
Also consider the case where you tried to join the R-325 inbound from a 260 heading...that's a honking left turn, which could involve a good amount of overshoot. Again, picturing the 3700ft obstacle just NE of a TWINE, an overshoot while crossing the R-325 from east to west would not be good.
That's the reasoning off the top of my head that it must be referring to joining the R-325 OUTBOUND.
It can't be the opposite (VNY R-325 inbound), because if that was the case, then the next step would not be a climbing left turn direct VNY, since you'd already be heading to VNY on the R-325 inbound.
My guess is the reason for the climb to 4500 is to ensure that you clear the 3700ft obstacle to the left of the VNY R-325, just NE of TWINE (see the sectional).
Also consider the case where you tried to join the R-325 inbound from a 260 heading...that's a honking left turn, which could involve a good amount of overshoot. Again, picturing the 3700ft obstacle just NE of a TWINE, an overshoot while crossing the R-325 from east to west would not be good.
That's the reasoning off the top of my head that it must be referring to joining the R-325 OUTBOUND.
-
- Posts: 20
- Joined: Fri Aug 19, 2011 11:08 pm
- Location: Northern California
Re: Whiteman (KWHP) IFR Departure Question
Thanks Keith,
You've now described why I got confused. Plus I had set my OBS correctly for the intercept, though it felt like it was taking a long time to get there. Then thought I'd mis-set it and changed it and had to change back. Much better to make such mistakes in the virtual world (FWIW, I don't fly IFR without a good IFR GPS/Map in the plane, it helps situational awareness) than in real life. I just further confused myself by rereading, and rereading the departure clearance.
Scott
You've now described why I got confused. Plus I had set my OBS correctly for the intercept, though it felt like it was taking a long time to get there. Then thought I'd mis-set it and changed it and had to change back. Much better to make such mistakes in the virtual world (FWIW, I don't fly IFR without a good IFR GPS/Map in the plane, it helps situational awareness) than in real life. I just further confused myself by rereading, and rereading the departure clearance.
Scott
Scott Woodland, PE, M.ASCE
PPL - ASEL -- IFR
PPL - ASEL -- IFR