AFAIK sprockets drive tracks via node/beam intersection, similar to chain drive on bikes, not friction.
Yes but there is friction where the nodes of the tracks slide on the triangles of the sprocket while they enter or exit its radius, because node size is not infinitely small but there is an area that collides with the triangles and slides on them. (That also makes machine guns possible in game, the friction between nodes and triangles is what makes them so effective, and possibly the same friction here is one of the culprits of the problem.)
So the tracks were like 60% too heavy, I reduced the weight and it was a massive improvement, although still not close enough to realistic values - the top speed increased from 18 to 30 km/h. Decreasing the tracks static and sliding friction to 0.1 further increased the top speed to 35 km/h, although the side effect was that the tank had no grip. I fixed that by increasing noLoadCoef (the grip a node has when it's not slipping on the ground) from 1 to 10, which surprisingly also completely eliminated the oversteer issue at low speed! By adjusting the sliding friction coef to 0.2 I was then able to also get rid of the high speed oversteer. By getting rid of the friction and torque loss of the transmission, differential and sprockets completely, I was able to reach 36 km/h. Then decreasing the tracks precompression factor to give them more flexibility on the sprocket teeth increased it all the way to 40 km/h. Although increasing it more lowers the speed because they start getting tangled up, I found the optimal value that gives the best top speed. So 18 to 40, this is a lot of progress, it's over twice as fast. But a lot more needed as the top speed should be 70 km/h. What else should I check? The size of the sprocket is fine, drag coefficient doesn't change anything, there is no friction anywhere, weight of the whole tank is still less than it should be...
This gives me an idea, maybe it has more grip off road then on road, will test if the speed is higher there
That was my idea too but being used to regular cars in which tires operate the opposite wayt I felt it was kinda wrong Most tanks have 2 speeds listed - on road and off road and on road is actually higher for example - https://www.hotcars.com/these-are-the-fastest-tanks-ever-made/
Fantastic work! Check the torque converter if it's automatic, the TC might be configured incorrectly. The Code: "couplingAVRatio":5, "fluidDensity":9000, are obviously wrong
I figured the converter was all kinds of messed up long ago so I just reused the bus one. With the old converter it was barely going 10 km/h. I managed to reach 60 km/h by tweaking the shift points and messing with some track values like spring and tolerance. Then I noticed that the torque curve drops quite suddenly beyond the peak power like it shouldn't really do, giving it not enough torque at high RPMs. The engine is a turbocharged Diesel flat 6 so it should still make quite a lot of torque at its peak RPMs. Fixed that and got 65 km/h. And after some more track tweaking... It just barely reaches 70 km/h and can't go any faster. Success! Now I want to see how fast it would be with the old engine that had like 20 thousand horsepower lol --- Post updated --- I'm totally making a drag config now lol
For now it can't compete with drag cars yet as the top speed is only 144 km/h. (Which is still a lot for a tank but can't beat a sports car.) But I'm thinking of adding like 10 bottles of nitrous in the back to give it like 10 times more power lol
In some games featuring tanks people shoot the main gun with the turret being turned 180 degrees to receive a speed boost --- Post updated --- If it doesn't work you can always shoot the opponent's car at a drag strip
I don't really believe said claim, as the BTR-80(wheeled vehicle has much lower rolling resistance than tracked vehicle) has a topspeed of 80km/h(the unofficial topspeed is 100km/h only achieved on flat tarmac)
LOL THIS ACTUALLY WORKS SO WELL IN BEAMNG NOW 100 km/h on the stock engine, overrevving it like crazy lmao It's possible because I added adjustable fire rate and set it to 100 rounds per minute
OMG WORKING TRACKS ON BEAMNG VEHICLES? with better metal texturing on the tracks this could be wonderful
I can't make any better textures as the ones provided with the model were just a matte grey color, I already improved them as I could
