Firstly my apologies if this is not the correct place for such a topic - I could not find any GTN750 forums on the internet. And I am a complete novice.

I was having trouble with two waypoints NOT connected.

Secondly the scenario - a very short flight from YGLB (Goulburn) to YSCB (Canberra)

I am wondering if this is the correct method in creating a flight plan which has an ILS approach/landing

Starting flight at YGLB and before taking off, the departure airport is already loaded

Set Destination    ie  YSCB

Set PROCedure - Approach     I select ILS 35Y  and Load Approach

Set PROCedure - Arrival       I select  LEEC1V  and Load Arrival

Now here comes what I think is the problem.  Waypoint MOMBI appears twice in the flight plan as follows -

YGLB - LEECE - AKLIM - EKASA - SLICK - PILOS - MOMBI - YSCB - Approach YSCB ILS 35Y - MOMBI - DAMKO - RW35 - 5100 FT

Is this flight plan correct OR should one of the MOMBI waypoints be removed and if so which one?

I remember a long time ago when programing the FMC in a B738 for a flight plan one would need to check for things such as Discontinuity.

Thanks

 

From my experience, this is fine.  Once you pass PILOS and are heading to MOMBI, you can activate the approach by highlighting the second MOMBI (the one that is part of the approach) and use "Direct-to".  That will activate the approach.  I am not trained in using the GTN, though, so I'm sure someone with actual experience IRL will jump on here soon.

Just delete the first MOMBI

5 hours ago, Jarnie said:

Now here comes what I think is the problem.  Waypoint MOMBI appears twice in the flight plan as follows -

YGLB - LEECE - AKLIM - EKASA - SLICK - PILOS - MOMBI - YSCB - Approach YSCB ILS 35Y - MOMBI - DAMKO - RW35 - 5100 FT

I simply identify my preferred approach, and if appropriate arrival procedure first, then direct the flight plan to the appropriate acquisition point in the arrival or approach.

After PILOS click on the approach (the one after YSCB) and activate it. You will then fly to MOMBI with the approach already active.

Thanks everyone for your varied suggestions.

I have noted that the B738 FMC sometimes has two waypoints the same and one needs to be removed but wasn't sure about doing that in the GTN750 as I did once try removing a waypoint and everything seemed to go crazy after that.

I will try all suggestions and decide which one I prefer.

Lastly I made an observation after watching a couple of Youtube tutorials that using the method I explained in my first post, the active leg was the last leg (or near last leg) and I had to select the first waypoint (LEECE) and then select 'activate leg' before using the AP and assume that was normal even though neither video tutorial showed that.

 

Thanks again I now have more questions as to how to use the GTN750.

Firstly is there a way to delete/remove current flight plan and is so what is the procedure?

The reason for this is twofold. Firstly if I decide that I want to fly to a different airport.

Second reason is that just now in an effort to speed up the process of entering a flight plan I started a flight on the runway so that I didn't have to start engines etc etc. I entered my flight plan at that point.

Firstly I noticed that the GTN750 prompted me for the departure ICAO - it is already 'populated' when starting a flight at a parking location. Why? Surely the GPS location is much the same.

According to one source I found on the internet -

The departure airport being proposed (position of the plane), we will select the destination airport

So why then do I need to enter the departure airport ICAO? Is there a bug in the GTN750?

I did that then entered the destination ICAO as I have always done.

When I then added the PROCedures (arrival and approach) 'things' went haywire and the arrival 'waypoint' was inserted immediately after the departure ICAO and before the first waypoint ie LEECE. It seems that perhaps the correct procedure in entering the PROCedures is different.

Please advise. Thanks.

Edited April 29, 20251 yr by Jarnie
Departure airport 'selection'

3 hours ago, Jarnie said:

Firstly if I decide that I want to fly to a different airport.

At any point, you can choose an alternate airport and push DTO enter enter.  If the airport is part of the flightplan, the plan will remain active, if not it will be inactive.  If you choose Menu on the flightplan page, you can delete the flightplan.

4 hours ago, Jarnie said:

Thanks again I now have more questions as to how to use the GTN750.

Have you got a copy of the Garmin GTN Pilots Guide?  If not, I would suggest you get a copy.

https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://salt.aero/wp-content/uploads/2021/03/Garmin-GTN-Xi-Pilots-Guide-skompresowany.pdf

 

Edited April 29, 20251 yr by Bert Pieke

1 hour ago, Bert Pieke said:

Have you got a copy of the Garmin GTN Pilots Guide? 

No.  I did find a guide for the GTN750 (what I searched for) and could not find anything about deleting a flight plan and so posted the question here. I have now downloaded the GTN Xi pilots guide which has the method explained. Thanks again.

19 hours ago, Bobsk8 said:

Just delete the first MOMBI

I tried that and it works correctly, and I find this a bit easier than the other suggestions which need to be done once airborne and need to remember to do a Direct Track at the correct place in the flight. Thanks anyway to all those other suggestions. I didn't know that you could do a direct track to a waypoint without compromising the other waypoints.

14 minutes ago, Jarnie said:

I tried that and it works correctly, and I find this a bit easier than the other suggestions which need to be done once airborne and need to remember to do a Direct Track at the correct place in the flight. Thanks anyway to all those other suggestions. I didn't know that you could do a direct track to a waypoint without compromising the other waypoints.

Are you using the TDS or the PMS50 GTN?

8 hours ago, Alvega said:

Are you using the TDS or the PMS50 GTN?

That is a good question... they are different as far as flight planning goes.. The TDS unit is the one I was referring to..

4 hours ago, Bert Pieke said:

That is a good question... they are different as far as flight planning goes.. The TDS unit is the one I was referring to..

Exactly, and I noticed he didn't say which one he is using. 👍

12 hours ago, Alvega said:

Are you using the TDS or the PMS50 GTN?

I am using the PMS GTN.  Sorry I thought the TDN750 was by PMS and the TDNXi by TDI and so didn't identify (PMS or TDI). Sorry a bit confused maybe as first time using this.

Edited April 29, 20251 yr by Jarnie