SRV tyres - new supplier needed?

Well, put it this way, not on road going cars, but there are tyres that will allow you to race on packed snow and ice, and much faster than 85 in the right vehicle. The grip isn’t what most folk are used to, but you can tell when it is going to give out and compensate. What I am getting at is the unpredictability of the grip in the SRV — I don’t go totally flat out, ever, but I do travel really fast and in a model that is generally pretty good, it is noticeable that sometimes a small obstruction will throw you off line and other times it won’t. When you do lose grip, it is very an often all or nothing phenomenon, too. It would add a good deal to the fun if you could make a better judgment about what is going to cause a problem and what isn’t and if the loss of grip was proportional...

...because then we could have PVP SRV racing.

FX: dons goggles.

According to the stats page I have driven 15,700km in my SRV, and because I was there when I did it all I can assure you that a very small portion of that was done at 38m/s or below ;)

I use a T-16000FCS and use the yaw paddle on my throttle for steering, the throttle itself for speed control (with drive assist always off) and my flight stick controls attitude while in the air (pitch & roll). I can correct oversteer, slide and drift the buggy at speed, whatever I need it to do. If I get into a tank-slapper at speed I have an option not available to me in an IRL car, I can up-thrust and correct the attitude with the flight-stick.

And with practice you may be able to do this too. The poor handling (no understeer, tendancy to oversteer) is a result of having a pair of wheels on the front steering axis to some degree, and rear steering wheels to a large degree. Make fine adjustments at speed just as you would not yank the steering wheel of a car at motorway speeds.

Stick with it, you'll get there :)

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Grip is reasonable, given the speed, surfaces, and gravity, but I have long wondered what's the deal with the lock at the ends of the turning arc of the wheels - it's kind of like a ketchup bottle: Nice and steady... the wheels turn proportional to the stick... a little bit more, good, fine, linear, corresponding to input... and juuust another hair-fine nudge-BAM!!! -Suddenly they snap several degrees, to their maximum position. I guess it's to add some extra risk to extreme swerving, or something. :p
 
Note the speed of 0-30 is in m/s... that translates to 0 - 67 mph or 108 km/h

Hit a rock, a good ratio of the size of your tire and it matters not what type it was... that shock is going to do... something to your vehicle... just as the above quote says.

Some of those rocks look small, but are actually fairly big


Not on .1 G they don't.

Eh, always late to the party I am.
People tend to forget those two factors. High speed given in m/s when we are used to kph or mph and in reality you drive 3.6 times faster than indicator shows. Add low gravity and even spiked extra sticky tires won't do much.

Also, last year we had quite nice thread about "jump-flying" SRV, instead of dull driving. Sadly forgot the term that was coined.

So my advice is:
- try flying instead of driving, tire grip problem solved
- recalculate indicated speed into your IRL counterpart, set a mental limit not to exceed 25. Tire grip problem solved.
 
Note the speed of 0-30 is in m/s... that translates to 0 - 67 mph or 108 km/h

Hit a rock, a good ratio of the size of your tire and it matters not what type it was... that shock is going to do... something to your vehicle... just as the above quote says.

Some of those rocks look small, but are actually fairly big

This. People don't understand how fast they are really going. They see a speed of 30 and think "that's slow".

Yeah, you try driving 30 m/s on an icy surface and see how well you can maintain control.

Slow down, you're going too fast.
 
Maybe the old Mass Effect Mako memes should be recreated with the Scarab... :7

The Mako was amazing, it could get up slopes it had no real right to expect to climb. I know most people hated it, but I don't think they really understood it.

As to tyres, my knowledge of such things is limited and may be wrong, but I'd suggest BF Goodrich.

Echoing many other posters advice, here are some wise words from the Primitives

[video=youtube;1y7NGqfZteg]https://www.youtube.com/watch?v=1y7NGqfZteg[/video]
 
Friction is proportional to the force applied between two surfaces. For land-based vehicles, that force is called gravity.

If you are driving around in 0.1g then you're going to be getting 90% less grip than you'd expect.

The number of wheels is almost irrelevant since the mass of the SRV never changes and doubling the number of wheels halves the force being exerted between each tyre and the ground, reducing both the frictional force but also (with pneumatic tyres) the contact patch size. If anything, the SRV has too many wheels for high-speed cornering and the configuration is actually biased towards better handling on very uneven terrain at the cost of handling on smooth flats.
 
Full speed is more fun anyway. Repair costs are cheap, so why not go down the hill backwards at 20 m/s?

Being serious though, when you look at all those pictures of moon footprints, how much if the surface of rocky bodies is dust? It's probably similar to driving on sand.

With your beach buggy being supported by a balloon, grip is barely an option.
 
Some of the world's we race those SRVs on, I'm surprised the first rock we hit doesn't put us in orbit, tbh.

I drove over an active geyser the other day it was an interesting experience watching my ship take off from over 2 km below me and fly past as it dismissed itself eventually I did start to descend but I didn't push my luck by recalling my ship when I had got down to 2 km above surface besides I was busy getting ready to crash down.
 
The Mako was amazing, it could get up slopes it had no real right to expect to climb. I know most people hated it, but I don't think they really understood it...

That was the only conclusion I could come to, too. Like they turned a blind, and speed-blinded, eye not only to things like gravity, but to tyres kind of needing contact with the ground, in order to have any effect, when trying to turn. :p
 
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