New to GPS approaches; where's the MAP for this one?

[Snakum]

I'm going to get in the Alarus this weekend, if possible, and fly the RNAV03 and notice exactly what the 430 does. I flew it last weekend but there were a couple traffic SNAFUS going on at once so I broke off the approach and 'got in line' and didn't catch what the screen indications were.

Good stuff mang.

Minher

 

[soarby007]

That's the best way to figure the GPS unit out. Practice and become familiar with it. Note however, that the MAP may not be depicted in your unit as the MAP is still determined by visibility at your MDA. In the Honeywell unit I use there would be no MAP, but would sequence from GABINE to rw03. Of course you would have to proceed to RW03 on the missed and then to COSIN, as depicted. Even though my unit will not signify the MAP on this approach, as a pilot I know that at the appropriate visibility point I would automatically execute the procedure and then you can still follow the GPS.

Good luck with the unit.

 

[soarby007]

Snakum, after re-reading my post I realized I probably confused the issue myself in thinking you were asking when to make the missed approach and answering questions you probably didn't ask. What I was trying to point out was the VDP issue first, landing minimums second. The MAWP is RW03, as is all the other approaches to this airport. You have to go to the MAWP (RW03) before turning, especially in view of the obstacles at this airport. I thought you were asking about when to initiate the missed which of course if the visibility doesn't meet one of the ones in the approach plate,which you can do since you can't land. You do have to go to the MAWP before turning or the GPS won't sequence properly in addition or meeting obstruction and TERPS requirements.

The MAP actually doesn't exist here in that abreviation, instead it is the MAWP. Guess I thought you meant when you should forget landing.

Sorry to have confused anything here.

 

[PC12Cowboy]

most gps approaches are a fly over waypoint ...as indicated by a circle around the fix....and fly by waypoints do not
the new instrument procedures handbook from the FAA is a great resource for learning all the NEW STUFF..LOL
i fly behind bendiz/king and garmin...and now will have to learn to apollo/ups/garmin 480...for full blown VNAV/LNAV approaches SWEET!!!

preety well versed in teaching most...so if you have a specific Q pm me and I'll do my best to get the answer for you
Cowboy

 

[Snakum]

Would you believe I still don't know when to execute the missed approach? I need to grab a GPS-God CFII and ride him through this one ... cuz I be stumped.

My VNAV is sticking out from my LNAV at the VDAP and my ADD/ADHD disorder be acting up. Thanks for trying, though, guys. I'm kinda ig'nunt.

Minh
(I never thought I'd miss NDB approaches. )

 

[JimNtexas]

Would you believe I still don't know when to execute the missed approach?

If you are using a GPS that doesn't give vertical guidence then miss at RW3, if you have something like a Garmin 480 that has vertical guidence then miss at the decision altitude of 1320 feet.

 

[Snakum]

Thanks!


Minh

 

[acaTerry]

Just be careful how far you trust that GPS. I know of several people who recieved violations by "blind trust" of the GPS navigation (such as Class B mapping, etc).
GPS is great, but still no replacement for good ole' piloting skills and proper SA. This is one of the reasons the FAA does not authorize stand-alone GPS operation.

 

[Snakum]

Just be careful how far you trust that GPS. I know of several people who recieved violations by "blind trust" of the GPS navigation (such as Class B mapping, etc).

I'm afraid I've been guilty of that one, myself, as far as airspace boundaries - which is one of the few things I used GPS for until recently. I have probably been WAY too trusting, in that respect.


Minh

 

[semperfido]

This is one of the reasons the FAA does not authorize stand-alone GPS operation.

what do you mean stand-alone gps operations? please clarify.

 

[PC12Cowboy]

acaterry,
hmm it would be time to wakey and smell the coffee.....as I have shot many stand alone approaches ...GPS...as the plane I fly doesnt have an ADF....and YES THEY ARE AUTHORIZED....and condoned

 

[wheelsup]

acaterry,
hmm it would be time to wakey and smell the coffee.....as I have shot many stand alone approaches ...GPS...as the plane I fly doesnt have an ADF....and YES THEY ARE AUTHORIZED....and condoned

I *think* what terry is saying is you CANNOT simply have a GPS installed in your aircraft and use that EXCLUSIVELY for navigation. You must have another backup receiver (VOR/ADF) installed in the airplane.

Ref: AIM 1-1-19 (d) (1) (b):

Aircraft using GPS navigation equipment under IFR must be equipped with an approved and operational alternate means of navigation appropriate to the flight. Active monitoring of alternative navigation equipment is not required if the GPS receiver uses RAIM for integrity monitoring. Active monitoring of an alternate means of navigation is required when the RAIM capability of the GPS equipment is lost.

~wheelsup

 

[JimNtexas]

I'm pretty sure that the Garmin 480 is authorized for sole-source navigation.

Certainly if an ADF can be used as a sole navigation source, it's not wild and crazy to trust a gps.

ETA: I think the AIM may not be totally up to date on this point, I'll look into it.

 

[acaTerry]

I *think* what terry is saying is you CANNOT simply have a GPS installed in your aircraft and use that EXCLUSIVELY for navigation. You must have another backup receiver (VOR/ADF) installed in the airplane.

Ref: AIM 1-1-19 (d) (1) (b):




~wheelsup

That's what I meant in my own little incomplete way of saying it. .
..seen too many a pilot violated over Class B mapping on the GPS in PHX...

 

[soarby007]

Back to the question of when to do the missed approach.

Anytime you want to and no later than the RW03. If you pay attention to the distance on the GPS you can determine if you realistically can meet landing visibility requirements and may as well go missed then, certainly no later than RW03. For training purposes and check ride purposes, they probably are looking for RW03, just as if it was one of the other approaches at this airport where the end of the runway is the MAP. Don't get confused here. It's just another navigation aid, doesn't change the rules.