Ramzzess B777 & B787

Tips, instructions and other information on adding your selected aircraft type to the vroute's fuel calculator

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bruced39
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Ramzzess B777 & B787

Post by bruced39 » Sun Oct 20, 2013 2:34 pm

Hello,

I just joined today and noticed several aircraft are not available for choosing for a route to help with fuel planning.

Could you add the X-Plane B777-200 & B787 from Ramzzess to the list of aircraft to choose to help with fuel planning?

David Bruce

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Michal Rok
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Re: Ramzzess B777 & B787

Post by Michal Rok » Sun Oct 20, 2013 8:36 pm

David,

We already have two variants of B777-200LR. Could you please check if the results of calculation match the fuel consumption of your plane?


Michal

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Re: Ramzzess B777 & B787

Post by bruced39 » Wed Nov 13, 2013 6:07 pm

Hi Michal,

I have tried using the 772's that vroute has and they under fuel te x plane ramzzess 777. I will do the test flights and send the data over so we can have the x-plane ramzzess 777-200 to choose for correct fueling in vroute. I hope to also do the eadt x737-800 for xplane as well.

David Bruce

P.S I see the thread on doing test flights. Is there anything special other than whats stated to get the data to you.

Dave

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Re: Ramzzess B777 & B787

Post by bruced39 » Wed Nov 13, 2013 7:45 pm

Is there any special program to use to determine fuel usage? I'm testing in X-plane 10.. I can use my Xacars which tracks it, but not sure if there was a better way you want me to measure fuel usage.

Dave

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Michal Rok
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Re: Ramzzess B777 & B787

Post by Michal Rok » Wed Nov 13, 2013 8:44 pm

Dave,

you do "special" test flights when you volunteer to test fly a new airplane that would be covered with vroute's fuel calculation. But for start all we need is to see if your X-Plane B777 behaves like vroute's B777 for FSX. To check your fuel consumption, use the regular on-board computer of your airplane. vroute can help, too - if you print out Flight Progress Card (see Exports) you will see there the forecasted remaining fuel amount for each waypoint. Just compare that to your real numbers and write down your actual fuel remaining next to each waypoint.

For clean test conditions, make sure your Winds Aloft parameter in configuration is consistent with whatever your X-Plane can simulate. I.e. if you use special 3rd party weather add-ons, make sure the setting is "Realistic".


Michal

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Re: Ramzzess B777 & B787

Post by bruced39 » Tue Nov 19, 2013 12:04 am

Hi Michal

I just finished a Flight from KLAX to LIRF and used Vroutes route and Fuel request and landed on fumes with less than 1.0kgs of fuel and vroute had me landing with 10.6 kgs. I had all weather in realistic mode as I always do and vroutes winds were very accurate with what I flew in.So I think the fuel equation for the 777-200 you have is off from our x-plane 777-200.

Dave

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Re: Ramzzess B777 & B787

Post by Michal Rok » Tue Nov 19, 2013 5:56 am

Did you write down per-waypoints amounts by any chance?


Michał

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Re: Ramzzess B777 & B787

Post by bruced39 » Tue Nov 19, 2013 3:37 pm

Hi Michal,

No I was just finishing the flight when I saw your request. I can try and do it on a shorter flight such as say 3-6 hours and not a 12 hour flight if you want. I will load the plane as your report card states and report the info. Let me know if you still want me to do that.

Dave

P.S

Other sites I use to use offer Cost Index's to use. With your programs fuel calculation, is there a standard CI for it or is it not used at all. If so What do people use for CI's?

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Michal Rok
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Re: Ramzzess B777 & B787

Post by Michal Rok » Wed Nov 20, 2013 5:26 am

6 hours is definitely long enough. I just need a well-documented flight so that I could compare fuel data. Ideally please turn own OpusFSX or whatever you use for winds aloft, and set vroute's wind model to 0/0. This will make your flight performance repeatable - in other words, I will be able to adjust vroute and recalculate the same flight.


Michal

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Re: Ramzzess B777 & B787

Post by bruced39 » Thu Nov 21, 2013 1:41 am

i use x-plane. So did you mean turn off my weather add-on and use vroute without actual winds and do a flight? Just checking before I do the flight. Thanks.

Dave

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Re: Ramzzess B777 & B787

Post by Michal Rok » Thu Nov 21, 2013 5:37 am

Yes, this is what I need.


Michał

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Re: Ramzzess B777 & B787

Post by bruced39 » Fri Nov 22, 2013 4:54 pm

Hope to do a 4 hour flight today and will send you the data you requested using the 777-200.

Dave

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Re: Ramzzess B777 & B787

Post by bruced39 » Sat Nov 23, 2013 3:31 am

Flew my test flight with X-Plane's Ramzzess 777-200 attached is my fuel Flight info. Any questions please ask. Hope this helps fine tune for us X-Plane Pilots using the 777-200. As you can see in this 4hr flight our plane starts to go negative versus Vroutes estimated fuel. And when I do medium-long haul flights i land on fumes with vroutes estimates.

Dave
Attachments
VROUTE Fuel Test X-Plane Ramzzess 777-200.zip
X-Plane Ramzzess 777-200 Fuel Test
(8.59 KiB) Downloaded 301 times

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Michal Rok
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Re: Ramzzess B777 & B787

Post by Michal Rok » Sat Nov 23, 2013 7:00 am

Thanks for excellent documentation. I've drafted the first approximation for Ramzzess B777-200. Please give it a try and let me know if the results match actual fuel consumption better.

Next time if you do a fuel test like this please provide also:
- which vroute model did you use - the Project OpenSky or the PMDG?
- what was the enroute Flight Level?


Michal

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Re: Ramzzess B777 & B787

Post by bruced39 » Sat Nov 23, 2013 3:38 pm

Michael,

I used the Project Opensky and FL360. If this helps. I am mid flight as I read this and will try it on the next flight, but I see that the zero fuel weight is the same as the project opensky (172,380 kg). Ramzzess is 145,150 kg. Does that need to be changed in your calculations? Just wondering.

Dave

P.S I will try the new one soon and report back to you.

Dave

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