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Holding Patterns  
User currently offlinePilot1113 From United States of America, joined Aug 1999, 2333 posts, RR: 11
Posted (15 years 1 week 6 days 17 hours ago) and read 3086 times:

Does the holding pattern radial go on the top or bottom of the OBS when you're setting up to intercept said radial?

For example-- if I wanted to hold on the 210 radial of Boiler VORTAC, would I place 210 on the bottom of the OBS?

I can't believe I'm asking this, I'm getting a brain fart right now.  Sad


- Neil Harrison

6 replies: All unread, jump to last
User currently offlineOecmr From Austria, joined Jul 2000, 31 posts, RR: 0
Reply 1, posted (15 years 1 week 6 days 5 hours ago) and read 2573 times:

Holding on the 210 Radial would mean your inbound course for the holding would be 030, right?
As you are flying to the station you have to set 030 on "top" of the OBS with a "to" indication in order not to get a reverse sensing indication!

User currently offlineB747skipper From , joined Dec 1969, posts, RR:
Reply 2, posted (15 years 1 week 6 days ago) and read 2566 times:

The most common technique I see (and use myself since long time) is to locate the INBOUND (QDR) on the HSI, for the 210 radial, that would be to select 030 on that instrument, a short while before reaching that VOR station, and proceed to the station using the RMI at "12 o'clock" or so.
If you are talking about the "OBS", you must be dealing with light planes, which I am not familiar with as far as that type of instrument's standard use, or recommended procedure. I personally would do the same, select the INBOUND (QDM 030) -
Happy landings to you...

User currently offlinePilot1113 From United States of America, joined Aug 1999, 2333 posts, RR: 11
Reply 3, posted (15 years 1 week 5 days 18 hours ago) and read 2542 times:

Thanks guys!

I do place 210 on the bottom of the OBS then.

And no I don't have an HSI or an RMI or what have you.  Sad I'm just flying Cessnas now, but in the future I hope to graduate up to those funky things you call FMCs!

- Neil Harrison

User currently offlineWISAZ13 From , joined Dec 1969, posts, RR:
Reply 4, posted (15 years 1 week 5 days 17 hours ago) and read 2533 times:

NO!!!! It could go either way. It all depends which way you are tracking the 210 radial. If your inbound course in the hold was towards the VOR, you would have 210 in the bottom of the OBS. If you were holding on the 210 radial going away from the VOR, 210 would be on the top. If you remember nothing else remember this: RADIALS ONLY GO FROM A STATION. If you know that, remembering this little ryme will help everything. FROM top TO bottom. If you are going TO the station, the radial will be on the bottom. Hope I helped.

User currently offlinePilot1113 From United States of America, joined Aug 1999, 2333 posts, RR: 11
Reply 5, posted (15 years 1 week 5 days 8 hours ago) and read 2529 times:

>>FROM top TO bottom

Thanks for that rhyme! I'm definately gonna use that in the future!

Thanks again! Don't worry, I know that all radials from VORs go FROM the station.

- Neil Harrison

User currently offlineStallspeed From , joined Dec 1969, posts, RR:
Reply 6, posted (15 years 1 week 4 days 19 hours ago) and read 2505 times:

Just a reminder that although you will put the 210 at the top of the OBS for the intercept, you will want to turn it to the reciprocal 030 (210 at the bottom) before you turn inbound in the hold. Otherwise you will get reverse sensing.

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