Gavril T75

Dunno about american trucks in this style, but alot of euro trucks only power the very rear axle. The other rear axle can then be raised so it no longer contacts the road surface, when driving just the tractor or only hauling a light load they tend to do this to reduce unnecessary tyre wear as the 2 axles tend to try and fight cornering (they have to slide sideways which doesnt do them any good). If they are genuinely needed (which often they aren't) then they can be lowered. Cargo box vehicles more like the cabster often do the same (if they have dual axles) but usually its the rear axle that raises and the front powered. Some vehicles have a transfer case inbetween the 2 axles and can power the movable wheels when lowered, but that is rare (one of stepdads trucks did it). Not all of our trucks do this btw, but its very common. In general the benefits outweigh the disadvantages of only having 1 powered axle most of the time.

 

I personally think its gonna be a 4x4 (thats the 2 rear axles before anyone asks) powering this truck along but its up to how the truck is coded then we shall know for sure...until its released all this is speculation..

 

Thats 6x4 then.

 

I saw some old truck in a parking lot that looked a lot like this one and I believe was from around the same year, but anyway, I immediately thought of this thing and walked round to to gain some knowledge of how the drivetrain worked for this very situation. The truck had two rear differentials, and the driveshaft went into the first one, and came out, slightly offset to the left, of the first one and went onto the second one. I can't remember if the second differential was moved to the left a little so the shaft from the first differential went into the center of it, didn't really think about it. I hope you could follow that.
So yeah, both axles are powered.

 

Yeah, that's more with Euro trucks. Here the only trucks with 1 rear axle are usually Fed Ex trucks or Pepsi trucks for something.

 

What would you say would be the most likely Drive configuration to this Vehicle taking into account that its from the 1980s...

 

I just typed a paragraph about it like two posts up.

 

Done some googling, the lifting axle has been done in the US as far back as the late 80's/early 90's but didn't take off at the time. The so called "6x2" is apparently increasing in popularity though. Apparently the extra weight pushing down on just 2 drive wheels can assist in snow and ice better than the weight being spread across 4 drive wheels, seems iffy to me but some trucking sites have info with people seeing a definite improvement from this setup. The extra axle is apparently only lowered when the axle load goes beyond either local law or the limit of the vehicle (usually law).

heres an image of that setup on an american truck:


For dual axle box trucks similar to the H45 cabster it seems raising the back axle is more common than the front axle (within the rear axle pair), no doubt for the smaller turning radius and because the centre of mass will still be ahead of the axle unlike on a tractor/trailer setup where the point the force is being applied on would be behind the axle and would probably make the truck do a wheely.

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Being american. 6x4. Both rear axles powered. Our setup existed, but might aswell not have.

 

i also would like to see a small trailer and possibl a heavy maybe 48 or 50 foot great dane, it would be sweet, i would enjoy cruising in it like a semi-boss

 

both rear axles are driven in north america that is how it has always been also neither axle is a lift axle or in other words they do not lift up i know this because i actually own a international eagle 9900i

 

oh yeah you just got BURNED damn i half understood that, heres something universal we can all understand
big truck+small car= broken small car, i know i should get a math award

 

Well, thats how its been 99% of the time, but looking online freightliner experimented with it as did navistar and its increasing in popularity. Hell I even posted a photo above of an american truck with lift axle. Freightliner apparently did a truck which automatically raised and lowered the lift axle depending on speed and load in the early 90's. Its just very very very rare.

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It was GCSE maths and physics plus knowing how to google for data

 

I have a decent understanding of maths and well it was my strongest topic at High School but I can understand the maths behind what you were saying...

and I also as well know how to use google to find out things as well and I can prototype engines in another game I have on my pc so I can import the code from that and use it in the engines I want to use so I can make a really powerful engine although the CCs will stay the same the engine will produce an entirely different power output to what it did before..

 

cant wait. looks good, defiantly add a trailer.

 

What do europeans think of American semi trucks? Do they think they are oversized and wasteful, or do you all think that they are strong and kool or wut.

 

You know that you will not receive this vehicle in the Tech demo right? Because you have not bought the game...

- IBsenoj

 

Well the reasons for us not using them aren't really so much a dislike for them. You guys have more room for high torque engines for moving heavier loads and believe it or not your layout is more aerodynamic than ours allowing for better fuel efficiency, but of course your tractor units are absolutely massive compared to our own. Our shorter units have much smaller turning circles and if you took an american and euro truck with trailer and the total tractor + trailer length was lets say 25 meters (totally random number of course), more of that 25 meters can consist of the trailer with our layout. Thats not to imply that you guys are wasting overall length, the EU impose restrictions on the length of trucks which are much stricter than the american restrictions so we need to maximise load carrying ability within our restrictions, an american truck would prevent us from doing that. We also have alot of tight narrow winding roads across the EU and the tighter turning radius of our layout is much appreciated.

In general though there is a certain cool factor to such a huge vehicle. Its just within european regulations and on european roads it is a highly impractical. I'm sure if the length restriction was relaxed though we would see more american style trucks on inter-city routes where the tighter turning circle isn't necessary and the improved fuel economy could be benefited from. A few euro truck manufacturers have shown off concept vehicles in a much more american styled layout in reaction to rumours that the length restriction may be relaxed slightly. Right now we can earn more money hauling the larger load in the same size restrictions than we lose in reduced fuel economy.

 

As a professional truck driver from Finland, i don't see them as wasteful or oversized. It's just the local laws here that result in maximising cargospace. Local maximum length in Finland is 25.25meters for b-double, semi with tandem or tandem with dolly (Tandem with dolly http://www.apks.fi/vkvat/mitatmassat-vars-pv-yhdistelma-mittoja.jpg). Then there is the traditional euro-semi that is shorter. So 1 meter of nose removes 1 meter of cargo space.
Actually i don't see a good reason why the semis length is so limited... The turning circle wouldn't be as high as tandem with dolly anyhow so it would be ok for homeland traffic.

But i have driven a torpedo body (nosed body) volvo for work, it was a -82 or -81 N12 8x2 equipped with robsons. It was a tipper truck and i liked driving it. Way better than the -80 F12 6x2 tipper (bulldog body, noseless) equipped with robsons that i usually drove back then exept that the F12 had the same power but it was lighter than the n12 on full load so it climbed better. Sitting behind the first axle gives you a better all around feeling, although the fixed cabin helped a lot with that too since the F12 had suspension cab. And on any given day i'd go for the torpedo cabin if possible unless it's really tight spot and the torpedo nose would increase maximum length. But it's getting even more less likely that i'm gonna get to drive another torpedo bodyed truck since they raised the maximum weights allowing 76.000kg total on 9 axles, when it used to be 60.000tn on 8 or 9 axles. Now everyone is getting 5 axle tipper with 4 axle cassette trailers (Don't know what's a cassette? https://www.youtube.com/watch?v=AYqg6addIdQ). Maybe if i'm lucky i can still get to drive one, and it's probably either Sisu or Scania from 80's to early 90's. Unless i get freakishly lucky and someone gives me a set of keys for M-B Zetros. But that would be a odd job anyhow, definatetly some serious off-road working, so probably not happening.


EDIT: Oh yeah, i forgot to give my 2 cents for the lift axle discussion. The 8x2 lifted 2 axles, the 2nd and 4th and the 6x2 lifted the 3rd. And Sisu offers tandem axle (*x4) that has possibility to lift the 2nd powered axle (even under full payload), cut the power out and drive with lifted axle just as normal. Result is combinig the better offroad capabilities of *x4 and better manouverability of *x2. Truck drivers favor the the 6x2 (semi or tandem) to have the 3rd axle as lifted (and steerable) because lifting the 3rd axle gives way better traction than lifting the 2nd axle and smaller turning circle.

 

not really dude, use to be the center axle was driven and the rear tandem was just a carry axle. created issues with high centering as you can imagine. seems like live tandems (6x4) were alwase an factory option tho. haven't seen many 6x2s with the rear-most axle as the drive axle. as far as lift axles go... well lets just say they arnt common in the us reguadless of drive axle. seen some dump trucks with them, but thats about it.

Greetings from a fellow trucker, nice to see im not the only one on here.