Jump to content
The simFlight Network Forums

FSUIPC Offset For Climb Power


Recommended Posts

Hi Pete,

Sorry to bother you. I did much searching but could not find an offset in FSUIPC (for FSX) for climb power before take-off, ie. N1 preset power (in %) which will be used on take off when TOGA is active or N1 is depressed, also know as target N1 power.

Is there an offset for this?

Thanks.

Luke

Link to comment
Share on other sites

I did much searching but could not find an offset in FSUIPC (for FSX) for climb power before take-off, ie. N1 preset power (in %) which will be used on take off when TOGA is active or N1 is depressed, also know as target N1 power.

Is there an offset for this?

Not that I know of, at least not by such a name. Is this simulated in the default FSX aircraft at all? I know it is by some add-ons with FMCs (I use Project Magenta which of course includes it).

There are these controls listed for FSX:

AP_N1_REF_INC Increment the autopilot N1 reference.

AP_N1_REF_DEC Decrement the autopilot N1 reference.

AP_N1_REF_SET Sets the autopilot N1 reference.

I don't know if these work, but if they do the autopilot variable which seems to relate to this is the AUTOPILOT RPM HOLD VAR, which is found at offset 07F4.

Regards

Pete

Link to comment
Share on other sites

Thanks Pete for the reply.

In the default 737 for example when you hit TOGA you will notice in the engine display the value of '0' in green (preset climb power) changes to '90.0'. So I figured, flight sim must have this value available. Anyway, I tried the suggested offset and it did not work (the value never changed).

Regardless, I realize that I don't need to read this value anymore. It is sufficient to read the RPM hold value to determine if N1 is depressed for my TQ interface software. Therefore, don't worry about it.

Thanks again for your pompt response. It is greately appreciated and helpful.

Luke

Link to comment
Share on other sites

In the default 737 for example when you hit TOGA you will notice in the engine display the value of '0' in green (preset climb power) changes to '90.0'. So I figured, flight sim must have this value available. Anyway, I tried the suggested offset and it did not work (the value never changed).

It never changes when you use the controls to change it? That makes no sense.

The value you are talking about is probably set in the AIRCRAFT.CFG file.

Regards

Pete

Link to comment
Share on other sites

It never changes when you use the controls to change it? That makes no sense.

The value you are talking about is probably set in the AIRCRAFT.CFG file.

Ah, OK. The value only changes from 0 to 90 when you hit toga but it never changes after that. I thought it was coming from the simulator.

Link to comment
Share on other sites

Ah, OK. The value only changes from 0 to 90 when you hit toga but it never changes after that. I thought it was coming from the simulator.

So, 90% N1 is the TO/GA RPM rating for that aircraft. Isn't that what you were after? It probably wouldn't be set BEFORE you press TO/GA because it is an autopilot target setting.

Regards

Pete

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use. Guidelines Privacy Policy We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.