If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
|
Thread Tools | Display Modes |
#11
|
|||
|
|||
WAAS GPS approach question.
I thought the FAA approved the use of GPS for any NDB waypoint. A plane
without ADF can fly any ADF approach with a IFR approach certified GPS. GPS waypoints can also be used in lue of ADF for missed approach holds, so you can fly any approach that has "ADF required" without an ADF if you have an IFR certified GPS. "Matt Barrow" wrote in message ... "Dico" wrote in message oups.com... Hello, I read on the Garmin page that their 480 is Waas certified...so that you can fly precision approaches without an ILS... what does this mean exactly? If I'm coming into an airport with only an NDB approach, can I use the 480's capabilites to fly a precision approach and get down to a lower MDA/DH? If the airport has only an NDB approach, how are you going to fly a GPS approach of any sort? |
#12
|
|||
|
|||
WAAS GPS approach question.
On Fri, 21 Apr 2006 01:53:42 GMT, "soxinbox" wrote:
I thought the FAA approved the use of GPS for any NDB waypoint. They did. But note the word "waypoint" A plane without ADF can fly any ADF approach with a IFR approach certified GPS. GPS waypoints can also be used in lue of ADF for missed approach holds, so you can fly any approach that has "ADF required" without an ADF if you have an IFR certified GPS. Note this from the AIM: (emphasis mine) "(6) Charted requirements for ADF and/or DME can be met using the GPS system, **EXCEPT** for use as the principal instrument approach navigation source." This would be true for a stand alone NDB approach (i.e. with no GPS overlay); and for the primary DME approach at Martin State (near BWI). If there is a published GPS overlay, that would be different. But not all NDB approaches have GPS overlays. Ron (EPM) (N5843Q, Mooney M20E) (CP, ASEL, ASES, IA) |
#13
|
|||
|
|||
WAAS GPS approach question.
On 20 Apr 2006 15:24:09 -0700, "
wrote: WAAS Approaches have vertical guidance but they are not classified as "Precision" Bill Hale What makes you say that. The only definition I'm aware of (in the P/CG) only requires that the approach provide electronic vertical guidance: "PRECISION APPROACH PROCEDURE- A standard instrument approach procedure in which an electronic glideslope/glidepath is provided" I might argue that an LNAV approach with "advisory" vertical guidance does not really meet that definition, but surely an LPV approach provides "electronic vertical guidance". Ron (EPM) (N5843Q, Mooney M20E) (CP, ASEL, ASES, IA) |
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
GPS approach question | Matt Whiting | Instrument Flight Rules | 30 | August 29th 08 03:54 AM |
GPS missed approach question | xyzzy | Instrument Flight Rules | 15 | September 15th 05 02:24 AM |
Approaches and takeoff mins. | jamin3508 | Instrument Flight Rules | 22 | September 14th 05 02:51 AM |
Contact approach question | Paul Tomblin | Instrument Flight Rules | 114 | January 31st 05 06:40 PM |
Where is the FAF on the GPS 23 approach to KUCP? | Richard Kaplan | Instrument Flight Rules | 36 | April 16th 04 12:41 PM |