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Masters of Endurance
Frankmd
S3 licensed
A little advertisement, for the bored people on this wonderfull afternoon.
The masters of endurance league is having its 3rd race of the season at the moment. This is a 6 hour race held at Blackwood. You can follow the race live via our Tracker and via LFS Spectator!

Tracker:
http://moe.lfs-tracker.de/

LFS Spectator : join the server Masters of Endurance
Frankmd
S3 licensed
I'd like to see it completely different Keep the orientation this way, but 'rotate' the tyre slowly. At the moment it shows the temperature of the part of the tyre currently on top, but at fast tracks its impossible to see if you have a flatspot/overheated part. If it would rotate the tyre at a slow, constant rate, it would be more easy to judge the state of your tyres.

Of course the tyre loading graphs should be realtime.
Frankmd
S3 licensed
Mind you, there have been cases of people having "Demo racer" as subtitle, while being S2 licenced.
Frankmd
S3 licensed
Yes, I have encountered that problem too. What I did was look for usernames that could possibly have been racing. Eg. I was working with a system with divisions, and it would simply search the file for the people registered for that division.

The lfs-usernames are indeed stored, but not listed. But this has been adressed to scawen like a thousand times, so I bet he will come with a new MPR header format sometime
Frankmd
S3 licensed
Oh, must be someone else then? Kinda thought so, but people look so different without facial hair, that I figured it would be possible that it was hoe

Seeing this picture I dont think it's him either :P I ment the guy in the n! shirt.
http://lfs.foren.4players.de/album_page.php?pic_id=286

Sorry torben if you feel insulted now
Frankmd
S3 licensed
Torben without the sideburns?
Frankmd
S3 licensed
A little kick on behalf of the Masters of Endurance staff. We still have enough places for our upcoming race on Saturday the 17th of December. This will be a 6 hour race at Blackwood, the ideal opportunity to get into the league.
For more information regarding the Masters of Endurance League, head to our forum here.
Frankmd
S3 licensed
Would it be possible to see how the tyre model is failing to simulate the grip at low speeds, using this data?
Frankmd
S3 licensed
Kort lontje...
Frankmd
S3 licensed
Norisring... easy...
Frankmd
S3 licensed
Your not showing enough patriotism there Tweaker

Nice add, I like the old F1 car
Frankmd
S3 licensed
It isnt a screenshot, I took it from a plane.

Honest.
Frankmd
S3 licensed
Here's another one... the person who guesses this first is a real nutter
Frankmd
S3 licensed
Quote from Tweaker :Here's a course

A cool, not well known course.

EDIT: one more

I was going to say Portland for the second one, but that isnt correct..

First one looks nice indeed, but not a clue either.
Frankmd
S3 licensed
2. Dijon Prenois

4. Bagdad City Track?
Frankmd
S3 licensed
I dont know about you guys, but Im on another conspiracy...
Frankmd
S3 licensed
Also I think that the biggest difference between air and water resistance is the Reynolds number. The Reynolds number is defined as

( free streem speed * density * caracteristic length ) / viscosity

The viscosity of air is 55 times smaller then the viscosity of water, but the density of water is 816 times larger. So generally the Reynolds number is much higher for a body trough water (at the same speed and size) then trough air. You might find more info if you search for some info on Reynolds number.
Frankmd
S3 licensed
But we are talking about water as a liquid, not as a gas. I am sure pure steam would behave like a gas, but according to a lot of sources, liquid water is nearly incompressible.

Edit: here's a steam table.
http://kahuna.sdsu.edu/testcen ... les/tablesPC/TSatH2O.html

The properties of water change with temperature. The table doesnt show how it changes with pressure, but indeed water (or steam) changes a lot in density at high temperatures.
Last edited by Frankmd, .
Frankmd
S3 licensed
I've searched for some figures on the compressibility of water, and I found 0.46 GPa-1.

So if you apply a pressure of one gigapascal, the volume would decrease to 0.46 of its original value?

If so, applying a pressure of 3000psi (equals 20,684,271 Pascal), the volume would decrease (20,684,271 / 1,000,000,000) * 0.46 = 0.0095. So it shrinks by 0.95% if you apply a pressure of roughly 207 bar?
Frankmd
S3 licensed
Quote from tristancliffe :At anything below Mach 0.7 you can treat air as incompressible, so therefore you can use the same equations. Above Mach 0.7 things get complicated.

You can treat air as incompressible up till mach 0.3. Actually Air is never incompressible, but until mach 0.3 the error is smaller then 5%.

Mach 0.7 is a different boundary. If the free stream speed is at mach 0.7, the local speed somewhere on the body (mostly planes at that speed) can reach mach 1.0 or above. At that speed you get all kinds of additional effects, like shockwave. Hence the name 'transsonic' for free stream speeds between 0.7 and 1.0.


Also I think in most aerodynamic problems the buoyancy effect is neglected, while in water I dont think it is realistic to neglect that.
Frankmd
S3 licensed
yes, var was an int.


import java.nio.ByteBuffer;
import java.nio.ByteOrder;


int value;

ByteBuffer temp = ByteBuffer.wrap(new byte[4]);
temp.putInt(0, value).order( ByteOrder.BIG_ENDIAN );

Frankmd
S3 licensed
Quote from tehSnaile :
Also this thing with converting 2 bytes (byte[2]) to an integer. Still working on that one.¨

I use this one:


var = ((p[n+1]&0xff) << 8) | (p[n]&0xff);

Frankmd
S3 licensed
I think you will have to make sure the total packet size is 24. Dunno to be honest. I am also using java for insim, but I dont use the getBytes() function. I do it like this:


byte[] temp = new byte[24];
//ISI + zero
temp[0] = 0x49;
temp[1] = 0x53;
temp[2] = 0x49;
temp[3] = 0x00;

//Port
temp[4] = 0x00;
temp[5] = 0x00;

//Flags
temp[6] = (byte)41;

//Nodesecs
temp[7] = 0x01;

//Password
temp[8] = 0x00;
temp[9] = 0x00;
temp[10] = 0x00;
temp[11] = 0x00;
temp[12] = 0x00;
temp[13] = 0x00;
temp[14] = 0x00;
temp[15] = 0x00;
temp[16] = 0x00;
temp[17] = 0x00;
temp[18] = 0x00;
temp[19] = 0x00;
temp[20] = 0x00;
temp[21] = 0x00;
temp[22] = 0x00;
temp[23] = 0x00;


I know it is a bit sloppy, but on the other hand, it is easy to make sure you put the data in the correct place, which is nice for a starting java coder

EDIT: I am also not sure about the way you make a connection to lfs, it is a bit different from how I do it.
Last edited by Frankmd, .
Frankmd
S3 licensed
So basically you have to write a paper about wear on birds? Or about how birds work, or...?

Maybe you should give us some hints first, so it is easier for us to search for you.

Btw, is that library really that small, or are your searching skills not up for the task?
FGED GREDG RDFGDR GSFDG