VOR/IFR Approach
08-02-2011, 07:59 AM
#1
New Hire
Thread Starter
Joined APC: Jul 2011
Posts: 5
VOR/IFR Approach
Hey guys, I've been looking over certain things about IFR and VOR navigation that I'm studying just to grasp the concept so I can be better prepared once I finally start my flight training, but I had a question about VOR/IFR navigation.
On some approach plates, they have LOM/IAF as a waypoint before the MAP, and this is considered the FAF, but I've been trying to look everywhere on the internet on how to know when you actually pass this point besides looking at the DME equipment that lets you know how far you are from the DME/VOR. The FAF has a number as seen on: [ http://204.108.4.16/d-tpp/1108/00985V13.PDF ] which I'm guessing is the frequency that alerts you as to when you passed over it, but I don't know what instrument tool you're supposed to configure and use so that it lets you know when you have flown over it. (I'm using MS FSX, I know this is a bad tool to get experience with, but I'm just trying to get my feet wet.)
edit: Sorry, I know that the link looks kind of fishy, but it's from the fltplan website!
On some approach plates, they have LOM/IAF as a waypoint before the MAP, and this is considered the FAF, but I've been trying to look everywhere on the internet on how to know when you actually pass this point besides looking at the DME equipment that lets you know how far you are from the DME/VOR. The FAF has a number as seen on: [ http://204.108.4.16/d-tpp/1108/00985V13.PDF ] which I'm guessing is the frequency that alerts you as to when you passed over it, but I don't know what instrument tool you're supposed to configure and use so that it lets you know when you have flown over it. (I'm using MS FSX, I know this is a bad tool to get experience with, but I'm just trying to get my feet wet.)
edit: Sorry, I know that the link looks kind of fishy, but it's from the fltplan website!
08-02-2011, 08:24 AM
#2
Gets Weekends Off
Joined APC: Feb 2006
Position: Seat 0B
Posts: 2,300
Use your ADF to guide you to the compass locator/LOM. You can also use marker beacons as well (blue O light). It should be on "lo sens" or low sensitevity and the volume on. DME is probably the most preferred way, although some may use one of the above mentioned methods.
08-02-2011, 09:45 AM
#4
Gets Weekends Off
Joined APC: Mar 2008
Position: FAA 'Flight Check'
Posts: 13,837
jorge -
The number that you are referencing (330) is the frequency for MISSI (MF), which is a Compass Locator class NDB. It is co-located with an Outer Marker making it an LOM.
Some good reading that will help lay all of this out for you is Chapter 1, Air Navigation in the FAR/AIM
(519-523). Enjoy!
USMCFLYR
The number that you are referencing (330) is the frequency for MISSI (MF), which is a Compass Locator class NDB. It is co-located with an Outer Marker making it an LOM.
Some good reading that will help lay all of this out for you is Chapter 1, Air Navigation in the FAR/AIM
(519-523). Enjoy!
USMCFLYR
08-02-2011, 02:15 PM
#5
Flying Farmer
Joined APC: Jul 2006
Position: Turbo-props' and John Deere's
Posts: 3,160
But what if he doesn't have an ADF..................
Use your Marker Beacons on the audio panel, have the "speaker" or "phones" button pushed. I've never used FSX so I'm not sure what show's up and what you should use. There's a blue "O" that should flash as you cross over the LOM as well as the audible tone's.
Use your Marker Beacons on the audio panel, have the "speaker" or "phones" button pushed. I've never used FSX so I'm not sure what show's up and what you should use. There's a blue "O" that should flash as you cross over the LOM as well as the audible tone's.
08-02-2011, 07:50 PM
#7
New Hire
Thread Starter
Joined APC: Jul 2011
Posts: 5
Ahh, I finally got it! I had forgotten that the approach plate was updated and the frequency had changed at the airport that I was trying to land in. I also guess I just never had paid attention to the OMI lights when coming in for the approach. Thanks guys!
Another question though: In real world situations, when flying VFR, does one always fly on an NDB or VOR's radials? I know that you can use triangulation to make sure you're on the right track or near the area where you're supposed to be at a certain time, but if you're wanting to go from city to city where there is no VOR or NDB between the two cities, do you have to go out of the way to get to a waypoint to get onto another radial to then track you to your destination?
Another question though: In real world situations, when flying VFR, does one always fly on an NDB or VOR's radials? I know that you can use triangulation to make sure you're on the right track or near the area where you're supposed to be at a certain time, but if you're wanting to go from city to city where there is no VOR or NDB between the two cities, do you have to go out of the way to get to a waypoint to get onto another radial to then track you to your destination?
08-02-2011, 08:02 PM
#8
Gets Weekends Off
Joined APC: May 2010
Position: Baja Vermont
Posts: 5,171
In the real world of VFR, one takes off, turn out of traffic and heads VFR direct to the destination, paying attention to NOT flying thru Class B, C and D airspace unannounced. One does this by familiarity with the local area, by referring to a VFR chart and, if new, using a GPS. Learning to fly true VFR is beginning of understanding navigation, not looking at dials.
GF
GF
08-02-2011, 08:51 PM
#9
Gets Weekends Off
Joined APC: Feb 2006
Position: Seat 0B
Posts: 2,300
There are 3 basic forms of VFR navigation. Pilotage, dead reckonging and radio navigation. Pilotage is what is mainly used when you have adequate landmarks to guide you to your destination. Railroad tracks, freeways, mountain peaks, lakes, rivers, cities, towns & other landmarks.
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