Author Topic: How is a new plane modeled?  (Read 2906 times)

Offline Boozeman

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Re: How is a new plane modeled?
« Reply #60 on: January 31, 2009, 11:11:00 AM »
So is the mossie with flame dampers properly modeled or not?

Note: I'm not asking if need an additional ac modeled without is needed. We have a wish list for that.

Well as far as I can tell, yes.
On the other hand though, a faster MK6 without the flame dampers, is just as, or probably even more "legit" as the one we have now.

The question is rather what are arguments for not having a MK6 without flame dampers (for now).
I can see for example, that making the needed changes in the 3D model would be quite a waste of time on an actually already outdated model.

However, when the Mossie is up for the 3D update, things may look different then.

 

 

Offline hitech

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Re: How is a new plane modeled?
« Reply #61 on: January 31, 2009, 01:26:46 PM »
On the subject of tables. They are used when an equeations does not represent the system very well. The down side of them is not inacuracy, but wrather the time it takes to create them by hand.

As an example, we use a table for air density. It has data points every 500 ft. So the only error is the difference of a linier interpalation between the 2 points and what the real density is, I.E. the error is almost non existance. we do the same with tempature at altitude.

The tables we use are not sweeping performance tables but simply one data point of an equation.

Tables are typicly more precise than equations, because they can account for real world testing , where as an equation can just be an aproximation.

The choice of  which to use is not a philisofical one, or a choice of which is more acurate, but which is better in each situation.

HiTech

Offline Ex-jazz

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Re: How is a new plane modeled?
« Reply #62 on: January 31, 2009, 03:17:15 PM »
On the subject of tables. They are used when an equeations does not represent the system very well. The down side of them is not inacuracy, but wrather the time it takes to create them by hand.

As an example, we use a table for air density. It has data points every 500 ft. So the only error is the difference of a linier interpalation between the 2 points and what the real density is, I.E. the error is almost non existance. we do the same with tempature at altitude.

The tables we use are not sweeping performance tables but simply one data point of an equation.

Tables are typicly more precise than equations, because they can account for real world testing , where as an equation can just be an aproximation.

The choice of  which to use is not a philisofical one, or a choice of which is more acurate, but which is better in each situation.

HiTech


Thank you for your very valuable feedback.

The reason why I'm asking this, is I stated to code my own hobby 'flight dynamics model' about 6 months ago, basically just to refresh my math skills.
http://bbs.hitechcreations.com/smf/index.php/topic,254612.0.html





Offline Traveler

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Re: How is a new plane modeled?
« Reply #63 on: January 31, 2009, 05:30:18 PM »
How is the Density Altitude calculated in the game?  Is it a standard day?  Based on a standard day for Density Altitude calculation the ME262 would have a Combat Ceiling of over 39000 feet, however, when climbing a 262 in Aces High you lose the ability to climb at 500ft per min around 30,000
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Offline Saurdaukar

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Re: How is a new plane modeled?
« Reply #64 on: February 04, 2009, 02:33:25 PM »
Hitech's spelling never dissapionets.  ;)

Offline hitech

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Re: How is a new plane modeled?
« Reply #65 on: February 04, 2009, 03:45:16 PM »
Hitech's spelling never dissapionets.  ;)

I am very happy to bring a smile to your face.

HiTech

Offline Cthulhu

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Re: How is a new plane modeled?
« Reply #66 on: February 05, 2009, 02:36:39 PM »
Hitech's spelling never dissapionets.  ;)
You ever think that maybe his brain and fingers communicate @ different baud rates? Or maybe he just lost UDP ;)
"Think of Tetris as a metaphor for life:  You spend all your time trying to find a place for your long thin piece, then when you finally do, everything you've built disappears"