visualising holds
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Joined: Dec 2006
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From: finally based at home!
visualising holds
can anyone help with visualing hold entry, i'm told there is a trick with using your hand ontop of the HSI to aid with visualisation.
any other tips would be welcomed.
thanks...
any other tips would be welcomed.
thanks...
Joined: Dec 1998
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From: Escapee from Ultima Thule
Make a 'pistol' with your hand. Left hand for LH holds, right hand for RH holds. Your extended forefinger represents the inbound track, angle between thumb & forefinger represents the Sector 2/teardrop position and the angle between forefinger & little finger knuckle equates to Sector 1/parallel entry.
Hold your hand against the DI/HSI/RMI with your forefinger pointing to the inbound track to see where the various sectors are. The a/c is represented by the bottom of the instrument, moving towards the 'aid' at the centre.
You might have to adjust how you shape your hand as the 'pistol'to get a more accurate sector representation - I do - but usually not a big deal. I adjust my hand so that my thumb's 1st joint is touching my forefinger's knuckle. Has the added benefit of making that knuckle more closely represent the origin for all radials/bearings
Hold your hand against the DI/HSI/RMI with your forefinger pointing to the inbound track to see where the various sectors are. The a/c is represented by the bottom of the instrument, moving towards the 'aid' at the centre.
You might have to adjust how you shape your hand as the 'pistol'to get a more accurate sector representation - I do - but usually not a big deal. I adjust my hand so that my thumb's 1st joint is touching my forefinger's knuckle. Has the added benefit of making that knuckle more closely represent the origin for all radials/bearings
Joined: Jan 1999
Aviation Qualifications: CPL
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From: Slowly decaying (disgracefully)
Difficult to explain without a picture but ...
Assuming you're tracking inbound to the holding point, but regardless of your heading compared to the hold axis.
Look at your DI; visualise a horizontal line through the centre of the DI and a vertical line from the centre downwards.
For a right-hand hold rotate the horizontal line 20 degrees anti-clockwise ("raise the right")
Locate the hold axis around the edge of the DI. If it's in the top (or largest) segment it's a direct entry. if it's in the bottom right (or middle sized segment) it's a parallel entry, and if it's in the bottom left (or smallest) segment it's an offset entry.
Using this it takes a couple of seconds to work out which entry.
I hope it's obvious what to do for a left-hand hold.
HFD
Assuming you're tracking inbound to the holding point, but regardless of your heading compared to the hold axis.
Look at your DI; visualise a horizontal line through the centre of the DI and a vertical line from the centre downwards.
For a right-hand hold rotate the horizontal line 20 degrees anti-clockwise ("raise the right")
Locate the hold axis around the edge of the DI. If it's in the top (or largest) segment it's a direct entry. if it's in the bottom right (or middle sized segment) it's a parallel entry, and if it's in the bottom left (or smallest) segment it's an offset entry.
Using this it takes a couple of seconds to work out which entry.
I hope it's obvious what to do for a left-hand hold.
HFD
Joined: Jan 2000
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From: UK/Spain
Probably going to get shot down for this but I always find it strange the contortions people get into trying to work out a hold entry.
90% or even more of the holds you do are printed on a bit of paper infront of you. Look at the picture with North at the top, then plant yourself on it flying towards the fix on the heading you are on and see which entry looks correct.
Sorry if that's too simple.
90% or even more of the holds you do are printed on a bit of paper infront of you. Look at the picture with North at the top, then plant yourself on it flying towards the fix on the heading you are on and see which entry looks correct.
Sorry if that's too simple.
Joined: Jul 2000
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From: Somerset England
I in the sky is spot on, given the 5 degrees allowed either side I have found just looking at the plate works well, we use Aerads, all the info is on them.
The method that never fails is to use the FMS, nice and simple
The method that never fails is to use the FMS, nice and simple
Joined: Dec 1998
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From: Escapee from Ultima Thule
Hold entries aren't depicted on US charts. I've been given a number of pop-up holds when the airspace is busy or weather filthy. Holds are often required as part of some checkrides (rating issue/LPC/OPC equivs.).
Joined: Jan 2000
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From: UK/Spain
Hold entry doesn't need to be depicted, just the hold itself which were always shown on the US charts I used.
In the event of ATC giving you an unpublished hold eg "hold east of the ABC VOR on the 080 radial, right hand turns" then I would still maintain that quickly sketching it out reasonably accurately is still by far the easiest way.
In the event of ATC giving you an unpublished hold eg "hold east of the ABC VOR on the 080 radial, right hand turns" then I would still maintain that quickly sketching it out reasonably accurately is still by far the easiest way.
Joined: Oct 2004
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From: UK
a little off track but might supplement your post
Types of entry.
When i was training I used to get a little muddled with offset, direct, number 1,2 or 3.
I use P.O.D with is 123 respectively.
Might help, might not.
I in the sky
Good advice. that how I do it and that 75% of learning is visual holds water here.
When i was training I used to get a little muddled with offset, direct, number 1,2 or 3.
I use P.O.D with is 123 respectively.
Might help, might not.
I in the sky
Good advice. that how I do it and that 75% of learning is visual holds water here.
Joined: Mar 2006
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From: somewhere over the rainbow
Try this :
write down the inbound track, the out boud track and the teardrop first track, the closest to your heading will be the one to use :
Ciao
write down the inbound track, the out boud track and the teardrop first track, the closest to your heading will be the one to use :
- Inbound track for a direct entry
- Outbound track for a parallel entry
- Teardrop for the teardrop entry
Ciao
