My take off speeds given in the EFB are off by one digit - for example, earlier I had a VR speed of 139 in the performance app but in the FMC it was 138. I entered the given speed from the app and before takeoff I got a message to verify speeds and I had to change it back to 138. Is that something I'm doing wrong myself?

Did they fix Map CTD?

1 hour ago, ThomseN_inc said:

But if (as people said) the FMC does a very basic calculation leaving aside multiple factors like runway length, runway condition etc, why are the calculations of the EFB the same? Is the EFB as basic as the FMC? Doesn't make sense to me.

The EFB takes many more factors into consideration than the FMC. In most cases though the speeds are going to be the same or close because in the vast majority of cases you'll be doing a normal takeoff where none of the factors the EFB takes into account really make much of a difference. For example, the runway would have to be really short for a flaps 5 takeoff with the speeds from the FMC to not get you off the runway or be unsafe so that the EFB speeds would differ greatly. 

6 hours ago, danhenri said:

I think that this is a deliberate choice from the devs. In reality, you have to enter the zero fuel weight and the CG in the FMS. The same procedure is simulated in the Fenix (the pilot receives a loadsheet  to enter the data in the MCDU. The Fenix's EFB gives you the TOW calculated by simbrief, but it may not match exactly the data received from the loadsheet). The difference, at this stage, is that you have to enter the payload yourself in the 737 FMS menu (GSX does now that automatically for you when loading the aircraft). Then, you can get your TOW in the EFB to calculate your performance. I am not a commercial pilot, but it seems to me that this procedure is more realistic.

Not sure I get your point. PERF INIT and TAKEOFF values are uplinked at many airlines to reduce the possibility of human error. Now that the EFB loads Simbrief values and does takeoff calculations they could have used the now known numbers to simulate uplink on these pages.

1 hour ago, El Diablito said:

My take off speeds given in the EFB are off by one digit - for example, earlier I had a VR speed of 139 in the performance app but in the FMC it was 138. I entered the given speed from the app and before takeoff I got a message to verify speeds and I had to change it back to 138. Is that something I'm doing wrong myself?

That's realistic. Vr and V2 often differ by one or two knots. V1 can be a greater difference. What you did first is realistic as EFB speeds take precedence over the FMC. The verify takeoff speeds message is a prompt for you to make sure they are correct, but that doesn't mean you have to use the ones from the FMC.

48 minutes ago, threegreen said:

That's realistic. Vr and V2 often differ by one or two knots. V1 can be a greater difference. What you did first is realistic as EFB speeds take precedence over the FMC. The verify takeoff speeds message is a prompt for you to make sure they are correct, but that doesn't mean you have to use the ones from the FMC.

Ah ok, cool. I thought it was something I was doing in the fmc. 

EFB speeds were -

V1 - 136

VR - 139

V2 - 140

FMC were -

V1 - 135

VR - 138

V2 - 139

because the difference was only 1kt across the board I thought it was a simple disrepency in the weights etc. Cheers.

45 minutes ago, El Diablito said:

Ah ok, cool. I thought it was something I was doing in the fmc. 

EFB speeds were -

V1 - 136

VR - 139

V2 - 140

FMC were -

V1 - 135

VR - 138

V2 - 139

because the difference was only 1kt across the board I thought it was a simple disrepency in the weights etc. Cheers.

Out of curiosity, did you enter in takeoff wind data on page 2 in the fmc?

1 hour ago, Kevin_28 said:

Out of curiosity, did you enter in takeoff wind data on page 2 in the fmc?

I requested take off and cruise winds in the LEGS - RTE DATA page after I loaded my flight plan. Not sure if I'm doing it right because it seems to take very long and it doesn't immediately show the winds even after I load them.

34 minutes ago, El Diablito said:

I requested take off and cruise winds in the LEGS - RTE DATA page after I loaded my flight plan. Not sure if I'm doing it right because it seems to take very long and it doesn't immediately show the winds even after I load them.

On the takeoff performance page, click next page to go to page 2. You should see a section that allows you to add in the winds to the takeoff performance data. 

11 hours ago, Kevin_28 said:

On the takeoff performance page, click next page to go to page 2. You should see a section that allows you to add in the winds to the takeoff performance data. 

I'll take a look today, Kevin. I appreciate it.

I've been flying the FBW exclusively since before the Summer so I need to reacquaint myself properly.

Edited November 1, 20232 yr by El Diablito

Ive not seen the uft update in the marketplace 737 700. For those with the uft can it be hidden or disabled and just rely on the good old FMC?

1 hour ago, 40track said:

Ive not seen the uft update in the marketplace 737 700. For those with the uft can it be hidden or disabled and just rely on the good old FMC?

They submitted it for review with the ms marketplace for review a few days ago. Once the marketplace team approve it, it will be made available for you folks. The UFT can be enabled and disabled through an option in the FMC.

22 hours ago, El Diablito said:

Ah ok, cool. I thought it was something I was doing in the fmc. 

EFB speeds were -

V1 - 136

VR - 139

V2 - 140

FMC were -

V1 - 135

VR - 138

V2 - 139

because the difference was only 1kt across the board I thought it was a simple disrepency in the weights etc. Cheers.

That 1 kt difference is pretty normal, happens often. Reason is - I think - that the FMC uses ZFW + current FUEL to calculate the TOW while the EFB uses the weight you enter (and that is the expected TOW from your OFP, i.e.  the taxi fuel is already subtracted from it).
SOP in many airlines is: If it's only 1kt difference, you can just use the FMC speeds.

Edited November 1, 20232 yr by Fiorentoni

Anyone know if it's possible to turn it off, or disable it outright?  

7 minutes ago, Noel said:

Anyone know if it's possible to turn it off, or disable it outright?  

Just uninstall it in the FMC.

Did the latest 737 update. But still, don't see a tablet in the cockpit. Any suggestions on what I am doing wrong? Thanks, Walt

1 hour ago, waltpop said:

Did the latest 737 update. But still, don't see a tablet in the cockpit. Any suggestions on what I am doing wrong? Thanks, Walt

Make sure it is installed in Equipment options in the FMC.

In my KLM 737-700 it wasn't and I first thought the installation was faulty, because the 800 had it. Then I looked into the Equipment options.