• Which the release of FS2020 we see an explosition of activity on the forun and of course we are very happy to see this. But having all questions about FS2020 in one forum becomes a bit messy. So therefore we would like to ask you all to use the following guidelines when posting your questions:

    • Tag FS2020 specific questions with the MSFS2020 tag.
    • Questions about making 3D assets can be posted in the 3D asset design forum. Either post them in the subforum of the modelling tool you use or in the general forum if they are general.
    • Questions about aircraft design can be posted in the Aircraft design forum
    • Questions about airport design can be posted in the FS2020 airport design forum. Once airport development tools have been updated for FS2020 you can post tool speciifc questions in the subforums of those tools as well of course.
    • Questions about terrain design can be posted in the FS2020 terrain design forum.
    • Questions about SimConnect can be posted in the SimConnect forum.

    Any other question that is not specific to an aspect of development or tool can be posted in the General chat forum.

    By following these guidelines we make sure that the forums remain easy to read for everybody and also that the right people can find your post to answer it.

Fuel consumption

D

Damlimey

Messages
5
Country
unitedkingdom
Hi all,

Here's a can of worms... Fuel consumption and fuel scalars when you are trying to imitate a helicopter with two engines.

I know that the world of helicopter simulation is tied to the Bell 206 model and have come to the conclusion that MSFS doesn't believe in helios having more than one engine so there has to be a lot of fudging done to create at least an appearance of additional engines.

However, try as I might and after lengthy study of the SDK and other forums, I can't get my head around how to get the right fuel consumption.

As I understand it, a scalar, any scalar has a maximum value of 1. It is essentially one half of a ratio between it and the output offset of which ever value it is scaling. i.e. if the offset has a value of 1 and the scalar is 0.5 the result is an output of 0.5.

The combined engine (2) fuel consumption for my model should be approximately 140 gals per hour but I can't get close to this figure. I've tried doubling up rated rpm and fuel flow gain etc but I can't get more than a reported 37 gals p/h.

So, does anybody know where to go to get the consumption I am expecting?

Please don't tell me it's in the .air file... I've created all kinds of havoc playing around with that little monkey!

Thanks in advance,
 
FSX Acceleration comes with the Westland EH-101 which has 3 engines, so maybe the FDE from that one would be of some help?
 
Yes, I tried to emulate that and yet it still isn't working. I think there might be a flaw in my model.
 
Well, if it fails to program it properly by tweaking the FDE, you can revert to using Doug Dawson's Fuel dump/load gauge.
With some code programmed in an XML gauge (based on your own calculations and the sim's AVars) you can "dump" the right amount of fuel in any flight condition.

Rob
 
You must log in or register to reply here.
Back
Top