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Creating a realistic flight model

Messages
11
Country
us-georgia
Hey guys,

I realized that creating a flight model is not as easy as it seems, especially with the calculations required for it. I was wondering if someone could kind of give me instructions, in a nutshell, to avoid confusion or help me make it, that would be greatly appreciated

Regards
 

Roy Holmes

Resource contributor
Messages
1,802
Country
us-virginia
The nutshell would be somewhat large.
What type of airplane are you interested in?
Roy
 

Roy Holmes

Resource contributor
Messages
1,802
Country
us-virginia
Interesting project. The modern airliners fly much like earlier ones, as far as speed range and handling as concerned. They must to pass certification requirements.What is different is their performance in terms of longer range and lower fuel consumption.
What that means is that you can start by basing our aerodynamic sections on some existing airliner and concentrate on the engine aspects as regards their effect on the performance in terms of range and fuel used.
The problem is that the manufacturers do not release performance figures to the public. That means you will never know if your performance is realistic. But by the same token, nobody can prove it is not.
The best thing you can do is generate an accurate set of engine tables.There is a paper available on this site I wrote some years ago that tells you how to do that.
Roy
 
Messages
11
Country
us-georgia
Hey Roy,
That private documentation you speak of I already have. :cool: anyways you got mail!

Regards,
KO
 
Messages
438
Country
unitedkingdom
As someone who is qualified on all the current large Airbuses, apart from the 380, I have access to Flysmart (the Airbus performance calculation app). I retire very soon, so I won’t have access to it for a lot longer. If there’s any performance data you’d like derived for the A35k (we don’t have the -900) before I have to give up my work tools, let me know.
 
Messages
11
Country
us-georgia
As someone who is qualified on all the current large Airbuses, apart from the 380, I have access to Flysmart (the Airbus performance calculation app). I retire very soon, so I won’t have access to it for a lot longer. If there’s any performance data you’d like derived for the A35k (we don’t have the -900) before I have to give up my work tools, let me know.
Hey Tim,
The data for the A350-1000 would be greatly appreciated especially that the current data we are mainly relying on is the -900


Best Regards,
KO
 
Messages
438
Country
unitedkingdom
You have to tell me what you need exactly. Flysmart is a planning and in-flight tool, it's not a spreadsheet with accessible incorporated data. I have to go in with specific weights, altitudes etc to derive performance data. Sadly, we don't have paper performance charts these days which you can interpolate manually and study at leisure!
 
Messages
438
Country
unitedkingdom
No. It is totally opaque. I tell it where we are, what the weather is, which runway and intersection we're expecting, and it spits out the speeds.

This is 22R at KJFK, weather on the left hand side (manually input), output on the right hand side.

A350Perf.png
 

jx_

Messages
555
Country
unitedstates
nutshell: Use real coefficients, geometry, and weight & balance. Put them in the correct fields in the airfile. Tweak video game controller to simulate the feel of the real controls. Done
 
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