What sort of data would you want to look at to make more realistic DAT Files?
- decaff_42
- Staff
- Posts: 3838
- Joined: Sat Oct 29, 2011 7:23 pm
- Favorite Aircraft: SR-71 Blackbird
- Location: Eastern United States
- OS: Mac OSX
- Has thanked: 844 times
- Been thanked: 1727 times
- Contact:
What sort of data would you want to look at to make more realistic DAT Files?
I am working on a Flight Analyzer to extract such information, but I'd like to speed things up by organizing analyses into different modules where certain groups of variables would be recorded and/or calculated while others would be ignored. For example if you only were interested in cruise performance, how about only taking throttle, aircraft lift and drag, etc. and ignore roll-rates, g force, etc.
I'm looking for quantifiable parameters, i.e. things that can be calculated.
Visit my GitHub page for Python codes: https://github.com/decaff42?tab=repositories
YSFlight Addon Database - Find links to nearly every addon made for YSFlight!
Submit Addon To Database
- Gunny
- Business Class Membership
- Posts: 3250
- Joined: Sun Feb 06, 2011 6:17 pm
- Favorite Aircraft: Any thing with a prop.
- Location: New Iberia.LA.
- OS: Windows 10 & XP SP3
- Has thanked: 586 times
- Been thanked: 786 times
Re: What sort of data would you want to look at to make more realistic DAT Files?
CPITMANE 5.5 #PITCH MANEUVERBILITY CONSTANT
CPITSTAB 3.2 #PITCH STABILITY CONSTANT
CYAWMANE 3.6 #YAW MANEUVABILITY CONSTANT
CYAWSTAB 3.0 #YAW STABILITY CONSTANT
CROLLMAN 3.0 #ROLL MANEUVABILITY CONSTANT
- decaff_42
- Staff
- Posts: 3838
- Joined: Sat Oct 29, 2011 7:23 pm
- Favorite Aircraft: SR-71 Blackbird
- Location: Eastern United States
- OS: Mac OSX
- Has thanked: 844 times
- Been thanked: 1727 times
- Contact:
Re: What sort of data would you want to look at to make more realistic DAT Files?
YSFlight also has a in-flight alterable input sensitivity which might change things. I will have to look into that more and see if that changes the recorded control surface input value, or the assigned amplitude of the maximum input.
Visit my GitHub page for Python codes: https://github.com/decaff42?tab=repositories
YSFlight Addon Database - Find links to nearly every addon made for YSFlight!
Submit Addon To Database
-
- Senior Veteran
- Posts: 1851
- Joined: Tue Feb 07, 2012 10:00 am
- Favorite Aircraft: .
- OS: windoze 10 64-bit
- Has thanked: 617 times
- Been thanked: 619 times
Re: What sort of data would you want to look at to make more realistic DAT Files?
Surface area + deflection of control surfaces to dictate flight performance rather than arbitrary constants.
Movable and rotatable hardpoints.
Customisable weapons.
Differing GUNPOWER per gun.
Pretty much all I can think for now.
- u2fly
- Senior Veteran
- Posts: 1485
- Joined: Fri Oct 02, 2015 9:27 am
- Favorite Aircraft: Antonov An-225 Mriya
- Location: Ukraine
- OS: Linux
- Has thanked: 1051 times
- Been thanked: 339 times
Re: What sort of data would you want to look at to make more realistic DAT Files?
Agree, also it must be moveable that will be very usefull for carrier decks and for wheels.NightRaven wrote: Movable and rotatable hardpoints.
U.S. Senator John McCain wrote:“Spending #NewYearsEve w/ brave #Ukrainian Marines at a forward combat outpost
- we stand w/ them in their fight against #Putin's aggression”
pic.twitter.com/vkz0gdozVV [archived]
(31 DEC 2016)
- decaff_42
- Staff
- Posts: 3838
- Joined: Sat Oct 29, 2011 7:23 pm
- Favorite Aircraft: SR-71 Blackbird
- Location: Eastern United States
- OS: Mac OSX
- Has thanked: 844 times
- Been thanked: 1727 times
- Contact:
Re: What sort of data would you want to look at to make more realistic DAT Files?
What aircraft performance parameters would you want to look at to improve DAT FILE numbers?
Visit my GitHub page for Python codes: https://github.com/decaff42?tab=repositories
YSFlight Addon Database - Find links to nearly every addon made for YSFlight!
Submit Addon To Database
- waspe414
- Staff
- Posts: 1582
- Joined: Thu Feb 10, 2011 9:35 pm
- Favorite Aircraft: Kiowa, Mitten, Hornet
- Location: Canada
- Has thanked: 154 times
- Been thanked: 506 times
Re: What sort of data would you want to look at to make more realistic DAT Files?
REFAOALD 15deg #LANDING AOA
REFTHRLD 0.3 #LANDING THROTTLE SETTING
After maneuverability constants and thrust, those are the most significant variables for dogfighters, affecting how closely the velocity vector sticks to boresight, which affects turn rate and high-AOA drag.
I recall doing some analysis of those years ago, when I figured out what they did, but I doubt I have it anymore.
I stole your turnip. Now you must come and defend your honour. ~ Hank Green
- Barr
- Veteran
- Posts: 1012
- Joined: Wed Mar 28, 2012 8:49 pm
- Favorite Aircraft: The Boeing 757
- Location: Providence, Rhode Island
- OS: Windows 10/Gentoo
- Has thanked: 272 times
- Been thanked: 206 times
Re: What sort of data would you want to look at to make more realistic DAT Files?
This may or may not be related,either way feel free to delete.
Does ys even realistically calculate fuel consumption? For example a plane on a climb would be using more fuel even if the throttle were equal when cruising. If it does a total fuel used, and seperate that into fuel used during climb, cruise and decent.
Also I always wanted to know how smooth my landings were. Ys will let you land as long as your rate of descent is less than, I don't know but for an example, 2000 ft per second. So a calculation based on speed, rate of decent, time etc to figure out the amount of g force on touchdown. Maybe the same can be done with take off?
Again I dont know much.
Beginner ATC for hire!
Current Projects:
-Pilatus PC12
-Mooney M20
-New England Scenery
Fine Print:
**Word of Caution**
My knowledge is limited. Anything I write in my posts may or may not be accurate. To be honest I think its all crap.
- decaff_42
- Staff
- Posts: 3838
- Joined: Sat Oct 29, 2011 7:23 pm
- Favorite Aircraft: SR-71 Blackbird
- Location: Eastern United States
- OS: Mac OSX
- Has thanked: 844 times
- Been thanked: 1727 times
- Contact:
Re: What sort of data would you want to look at to make more realistic DAT Files?
(1) Fly a flight with the aircraft you wish to test.
(2) Save the flight as a .yfs file
(3) Using the setup page, import the aircraft DAT file and the .yfs file generated from the flight.
(4) Select the time-frame you want to analyze
(5) Select what frame-rate you want the data. (long flights choose a lower frame rate)
(6) Select what type of parameters you want to calculate. (Manueverability for angles and rates, Cruise performance for thrust, engine, drag) I guess I could include a landing and take off portion.
(7) run the analyzer
I am still working on the analysis portion of the code. So far I have been able to impliment my AoA code which seems to work well. I will have to do some further checking of this to make sure it works properly. I have so many things that could be something a modder would want to look at. Do you want bank angle rate? Pitch vs elevator input, etc.
(8) Select parameters to plot
(9) generate plots
These last two, I'm not sure how it would work, but if not feasible else, you could make your own plots of the raw data and see what data you want.
Visit my GitHub page for Python codes: https://github.com/decaff42?tab=repositories
YSFlight Addon Database - Find links to nearly every addon made for YSFlight!
Submit Addon To Database
- Flake
- VFA-49
- Posts: 4375
- Joined: Thu Feb 10, 2011 8:47 pm
- Favorite Aircraft: Boeing F/A-18A
- Location: Australia
- OS: Windows 10 (x64)
- Has thanked: 861 times
- Been thanked: 1279 times
- Contact:
Re: What sort of data would you want to look at to make more realistic DAT Files?
For example: Mean, Median, Mode, Standard Deviation/Std. Err/Variance, Mean Average Deviation/Sum Squares Error of Mean...
Applyable to things like throttle position, VGW position, angle of attack/slip, airspeed...
That's a lot of possible options but really you could apply it to so many dat variables - eg: testing the variance of airspeed while performing certain manuevers, comparing bleed of airspeed to loading of G, etc. - could be used to compare .dats and balance performance.
- u2fly
- Senior Veteran
- Posts: 1485
- Joined: Fri Oct 02, 2015 9:27 am
- Favorite Aircraft: Antonov An-225 Mriya
- Location: Ukraine
- OS: Linux
- Has thanked: 1051 times
- Been thanked: 339 times
Re: What sort of data would you want to look at to make more realistic DAT Files?
1) http://www.aircraft-certification.de/in ... nload.html
2) http://www.aerodyndesign.com/fwd_tool/fwd_tool.htm
U.S. Senator John McCain wrote:“Spending #NewYearsEve w/ brave #Ukrainian Marines at a forward combat outpost
- we stand w/ them in their fight against #Putin's aggression”
pic.twitter.com/vkz0gdozVV [archived]
(31 DEC 2016)
Who is online
Users browsing this forum: No registered users and 6 guests