I still can't fully understand the differentials in the Tatra T813. I now know that there is 7 differentials in total. 1 in each axle that makes 4 and 1 between each axle. I understand how and where they are. But I don't understand how the differential is placed inside the axle. Between the halfaxles. I mean between the ring gears that drive the wheels. Can anyone explain. I have searched but always come up with no info.
@tarmo120, Its really quite simple and maybe this is the issue? as we say in UK you cannot see the wood for the trees? I think it is easiest to understand by looking at this video at point 1.10 and the lower picture with the black rubber bellows and offset swinging half axles, there is nothing else.
Many thanks to Gadzo and Tatradak for explaining a few seemingly puzzling questions about the back bone tube drive line and Nessledorfer / Tatra history.
Regarding Euro compliance, Tatra have until 2012 to submit the Euro6 engine......they are nearly there, the satistic are 13cm3, V8, AIR-COOLED, with EGR, common rail 4 valve per cylinder 400Kw 2500Nm @ 1250rpm, fuel consumption 20ltr per 100km. The complete engine package wieghs 1.1 metric tonnes.
STEYR PUCH Haflinger was designed by Hans Ledwinka's son Erich. The chassis was basically a copy of the TATRA concept patented by his father at TATRA in 1922/3. When Hans was released from a communist Czechoslovakian prison in the 50's he went back to Austrian his motherland. He was imprisioned by the Communist for collaborating with the Nazi building the T810 Halftrack another brillantly designed vehicle. He helped his son complete the design of the STEYR PUCH Pingauger 4x4 & 6x6 in the 60's.
I know it a small thing, but since this is YouTube I feel compelled to point it out. The animation for the gearing is wrong. Two enmeshed cogwheels are rotating in the same direction.
@jamesandrew2000 At first it looks like that however look more closely, the cogwheels are not enmeshed, in the first there is a larger diameter cogwheel on the left and a smaller one on the right working independently of each other. The second shows each crownwheel being driven by its own pinion. The drive shafts could not possibly turn in the same direction if they were enmeshed using this system.
looks so simple and cool functions, congratulations, I respect the Czech people for these things, Porsche was not stupid which is bought from them first motor for your car
@windfucker69 in fact Ferdinand Porsche was a Czech designer, was born in Vratislavice in Czech Kingdom, after 1918 he adopted Czechoslovak citizenship. He worked in Tatra factory as well, and there he robbed Tatra V 570 concept and later offered that to Hitler as VW beatle. Porsche cars are still made on robbed Tatra concept and famous VW beatle is robbed Tatra V570, vw hat to pay 3 millions gold Marks for this robbery in 1962 to Tatra on international court verdict base...
@HUMMVE100 You get differential between each segment and between the wheels, the 8x8 has 7 differentials. And when you go offroad you just lock them and there isn't much to stop you.
This is an amazing feat of engineering design, but with all those moving parts, wouldn't the probability of a seal failure increase with increased heat from highway use ? And one other thing, is the braking system centralized within the driveline or is it a more convententional set-up within the hubs ?
I totally agree, I found it even more amazing once I started to work and repair the drive line and suspension system, the overall design was generations ahead of its time.
Its my understanding that road use does not make any significant difference to the life of the seals, it is more about overall mileage.
Well we don't normally drive on the pavements as they are for pedestrians, however to answer your question, with the additional weight of the central backbone tube being so low down and assisting the truck's centre of gravity they go around corners like sports cars.
In general the TerrNo1 range is 2/3rds road and 1/3rd off-road, the Jamal series is 2/3rds off-road and 1/3rd on road and the military go where they damn well want.
It was designed for them by Eric Ledwinka, son of the Tatra design concet inventor Hans Ledwinka, when he worked for Steyr-Daimler-Puch just after WW2, he designed the Halflinger concept first and then incorporated the Tatra central backbone tube with swinging half axles into a higher mobility vehicle that we now call the Pinzgauer, however it is not exactly the same as Tatra.
There were a lot of engineering designs stolen from the Czech's in WW2 most notably the Tatra T97 which Hitler turned into the original VW Bettle, and Tatra air-cooled diesel engines became Deutz air-cooled diesel engines.
Ironically Ledwinka Snr was accused of Nazi collaboration and jailed in Czechoslovakia for several years after the end of WW2.
@UKChris012 The backbone chassis was designed by Hans Ledwinka, the chief engineer of Tatra. His son Erich started his career in Tatra but after WWII he went to work for the Austrian Steyr company where he developed Haflinger and Pizgauer.
Awesome design and I love diff locks but this design has no differential at all..if all the diffs on the Tatra are of this design it must be very hard to turn especially if you used it on the road
I think this is simplified to show the swinging axles.I dont know for sure how it works but I can imagine theres an axle inside the yellow tube shown here Cut the tube in half at the outgoing axles center line, and place a set of gears attached to the earlier mentioned axle between the halves. Just like a normal diff, just kinda backwards. Really easy to make a lock too, just add a sliding sleeve with claws over the yellow yube, when locked it'll work like shown in the video again.
what does it mean by "swinging half axles with no joints"? no cv joints? is it better than traditional independent suspension set ups like on a 120 series landcruiser?
how does tatra's suspension compare to that of man and oshkosh trucks with solid axles? stronger? equal? maintenance-wise?
do their axles have full locking capabilities (t813, t815)?
I'm not sure why, but you US guys don't seem to get the design, perhaps its because all of your trucks are just road bias, whereas in Europe we build road trucks and off-road trucks as totally separate design concepts.
I can't explain the swinging half axles any better than the video does here.
It's not just the suspension that effects a Tatra's off road ability, it is also the central backbone tube that keeps the whole truck structure completely rigid, thereby making the suspension do all the work. Also the Tatra suspension works on downward travel rather than upward travel as on a road truck.
thanks for the replay, it makes a lot of sense. i've been a tatra guy since reading a book about them in truck trials way back in the day.
you seem to know a lot about tatras. i have one question that has been nagging me. i always see tatra trial trucks with full cab roll cages, how do they access the motor for repairs or replacements? i thought the t813/815 had flip up cab access?
Well I know a little bit about Tatra trucks but not everything, we used to have a T813 Kolos Europa Trialling truck with one of those big wrap around roll cages as you mention, the engine is inside the cabin and most of the access is gained by removing the internal covers, uless there is extra soundproofing it can be quite noisy, but nice and warm in the winter.
Well yes and no, Tatra have several different suspension systems depending on the load requirement, but it all depends on which Tatra truck you are talking about, although they all have the same principal layout they are used for very different tasks.
The T813 Kolos was designed to pull a battle tank and trailer with 6 personnel in the cab and all their equipment in the back of the truck, all of this and off-road as well, so it is actually more of a tractor than a truck.
Yes you are right in your comment about the torque directions, they can be either way, I cannot remember my previous comment but as per the T813 Kolos which has double reduction hubs and was designed for towing a tank off road, then the transmission torque does pull the truck down towards the ground.
when it zooms in you can see a round thin gear rotating with the driveshaft. then the gears for the axle are free to move up and down it. just watch when it first zooms in.
when the narrator says "pinion gear" thats the differential. the two gears connected to the drive shaft. then theres two gears that are free moving on thge axles that can rotate giving it the independent suspension.
I see how the system works and its a great piece if engineering but independent suspensions by itself helps a lot. Humvees and the MTVR 7 ton use independent suspension and it aids in better on road and off road driving. I have never seen competition between a Tatra heavy truck and the MTVR but itd be fun to watch. As far as the Tatra system goes its great I think a company in the US is using it called ATC. Forest fighters love Tatra trucks for off road ability no doubt there just not many here.
ATC is not existing any more, ATC trucks were actualy Tatras recalled in this stupid way for US market. ATC is gone, and Tatra trucks are selling in USA under original and only one correct name - Tatra by Tatra Americas company owned by Tatra a. s. company
If this was put on a modern pickup truck this would be great. You talking about ease of movement off road I don't think you could get stuck. A ton truck with a diesel engine and this suspension would be a great asset in a harsh environment. Closest thing to this in the US is the Humvee and thier surplus. Independent suspension is showing up on US trucks but it is weak more fore ride comfort than anything and its only on the front. Tatra had thier stuff together when this was thought up.
kmass50%, You seem to have missed the bigger picture, the reason the Tatra is so good off road is because it also has the centre backbone tube and swinging half axles, using just independent suspension on its own is for road going vehicles.
I dont know why this has turned into a political thread, but thanks to the poster for putting up a video that explains clearly the principle of Tatras suspension sysytem.
Don't line up? If I understand you well - it is because the truck is not fully loaded, so one pair of weels is just not needed, they are pulled up to reduce tire-road rolling friction...
nah, you can see from the video that the right wheels on newer tatras are further back from the left ones, whereas in the tatra 11 they were in line with each other
Your right lee24/7, I'm not wasting anymore time trying to explain the concept to Americans who find it impossible to think not only outside of the box, but outside of the USA.
Another thing, Tatra is the only truck engine manufacturer in the world who can achieve Euro5 status without the use of any electronic gismos, yes that's right - by totally mechanical means, now that's some engine...!!!
Neither you or I think Tatra trucks are bad, useless, old mechines. The only thing I am trying to state is there is room for improvment.
If you deny the fact that there is nothing to improve on then who is the one not thinking out-side the box? The people who strive to improve are never surpassed.
Your hatred for Americans is astounding, almost as if they took something from you... like your dignity. Perhaps your emotional maturity as well.
If you think the depth of my anti American feelings are mine alone then you are mistaken, whilst I dont harbour any bad feelings towards any one in particular, I know that a significant majority of the rest of the world are shocked and angered by Bush - the Idiot in Chief, and his bunch of ultra right wing corporate American cronies who are not satisfied with creating another Vietnam, but have now brought the whole western democratic world to the edge of bankruptcy through fraud and greed.
As for my dignity and maturity well I am now the wrong side of 50, and whilst I am holding on to my senility, just, I am trying not to become a grumpy old man too soon, so the sooner Obama Bin Laden rights all the wrongs the better for all concerned.
Also, although I'm only seventeen, I know that attitudes like yours tear friendly nations apart. You cannot claim you dont hate individual Americans while hating Americanism. Our political system emerges from the grassroots, thus Americanism IS Americans.
Were you as shocked and angered by Saddam Hussein as you are by Bush? Does tyranny revolt you? If not, why not?
@DiggermanNo1 Fulfilling of the Euro5 regulations is very well done from Tatra - especially because the T928 engine concept originates from late 1940's, designed by Julius Mackerle. :)
The idea is rather simple. My guess is that they asked themselves "Why fix something that isn't broken?" They would be right...
But, their missing the point. Its not the companies that stick with a single idea and improve on it that catch my eye. Its the companies that come out with thinking outside-the-box ideas that catch everyones eye.
You can see the tire is anything but flat when the suspension is at full droop travel. Thus, less grip. Thats a bit beyond what we call "camber". Fix it
The best ideas always look simple, but this idea is not as simple as it first looks, its not just about the suspension, it is about a whole on/off-road vehicle concept, and for some reason Americans really struggle to grasp the concept.
I think one of the problems is Oshkosk, which seems to think its an off-road truck, if so you need to forget everything you already know about trucks and look at more Tatra information - try the 1922 Tatra T-26 YT video 1st.
Explain to me what exactly you think Americans cannot grasp as far as on/off road vechiles? Please, try not to be Bais.
Secondly, one of the most important factors (If not the most important) of a off road vechile that has good road manners is suspension. I do agree that there is a concept you must follow to create something worthy, but it is definitely not the only factor, nor is engineering.
Your cannot deny the fact they have kept the general idea for many years. Lets see something new.
It's a very clever system for off-road driving, and reduces the chassis weight I guess. The problem I saw when driving behind one is that there is a lot of positive camber when driving with no load. I saw a cement truck with dual rear wheels, the outer ones being almost totally worn down.
petem1989, yes you are right although technically speaking the chassis only has to carry the bodywork as the backbone tube is the rigitity aspect. The idea was to be 50/50 when loaded and unloaded so the tyre wear would even out over a period of time.
The newer air suspension systems don't suffer from this anymore.
Our truck makers dont need this level of articulation. They dont have to transport across all-terains. A truck ever leaving tarmac is odd. The reason American companies are not all copying Tatra is because there is no reason to.
Agreed. This type of suspension, or any form of extreme articulation and capability, is pretty useless when it is not needed, and especially when it costs quite a bit more. Tell me DiggermanNo1, what do I not understand?
Hi californiaspider, I guess its too extreme for your trucks maker, it would take a major change in overall design philosophy. although ATC (American Truck Company) are selling Tatra based trucks to the US forestry fire departments, so far in Nevada, Arizona, and San Diego.
I still can't fully understand the differentials in the Tatra T813. I now know that there is 7 differentials in total. 1 in each axle that makes 4 and 1 between each axle. I understand how and where they are. But I don't understand how the differential is placed inside the axle. Between the halfaxles. I mean between the ring gears that drive the wheels. Can anyone explain. I have searched but always come up with no info.
Thanks, Tarmo
tarmo120 2 months ago
@tarmo120, Its really quite simple and maybe this is the issue? as we say in UK you cannot see the wood for the trees? I think it is easiest to understand by looking at this video at point 1.10 and the lower picture with the black rubber bellows and offset swinging half axles, there is nothing else.
DiggermanNo1 1 month ago
Many thanks to Gadzo and Tatradak for explaining a few seemingly puzzling questions about the back bone tube drive line and Nessledorfer / Tatra history.
DiggermanNo1 3 months ago
@DiggermanNo1, I did know but I have been absent for a while .....
DiggermanNo1 3 months ago
I have stated before that if anyone makes ridiculous and stupid comments they will be removed and blocked, its my channel and I make the rules.
This has just happened to amuline 13 who seems to be a village idiot.
DiggermanNo1 3 months ago
Regarding Euro compliance, Tatra have until 2012 to submit the Euro6 engine......they are nearly there, the satistic are 13cm3, V8, AIR-COOLED, with EGR, common rail 4 valve per cylinder 400Kw 2500Nm @ 1250rpm, fuel consumption 20ltr per 100km. The complete engine package wieghs 1.1 metric tonnes.
tatradak 10 months ago
STEYR PUCH Haflinger was designed by Hans Ledwinka's son Erich. The chassis was basically a copy of the TATRA concept patented by his father at TATRA in 1922/3. When Hans was released from a communist Czechoslovakian prison in the 50's he went back to Austrian his motherland. He was imprisioned by the Communist for collaborating with the Nazi building the T810 Halftrack another brillantly designed vehicle. He helped his son complete the design of the STEYR PUCH Pingauger 4x4 & 6x6 in the 60's.
tatradak 10 months ago
This is utterly brilliant!
hsjawanda 10 months ago
e cabuloso
jotamecanica1 1 year ago
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yohanpetior 1 year ago
How does it differentiate tire rotation around corners?
KenMacMillan 1 year ago
@KenMacMillan I'm wondering the same thing.
cockercane 11 months ago
why the offset?
ryanstewart86 1 year ago
I know it a small thing, but since this is YouTube I feel compelled to point it out. The animation for the gearing is wrong. Two enmeshed cogwheels are rotating in the same direction.
jamesandrew2000 1 year ago
@jamesandrew2000 At first it looks like that however look more closely, the cogwheels are not enmeshed, in the first there is a larger diameter cogwheel on the left and a smaller one on the right working independently of each other. The second shows each crownwheel being driven by its own pinion. The drive shafts could not possibly turn in the same direction if they were enmeshed using this system.
Voxson1 1 year ago
looks so simple and cool functions, congratulations, I respect the Czech people for these things, Porsche was not stupid which is bought from them first motor for your car
windfucker69 1 year ago
@windfucker69 in fact Ferdinand Porsche was a Czech designer, was born in Vratislavice in Czech Kingdom, after 1918 he adopted Czechoslovak citizenship. He worked in Tatra factory as well, and there he robbed Tatra V 570 concept and later offered that to Hitler as VW beatle. Porsche cars are still made on robbed Tatra concept and famous VW beatle is robbed Tatra V570, vw hat to pay 3 millions gold Marks for this robbery in 1962 to Tatra on international court verdict base...
pestivetme 1 year ago 5
i dont get how a differantal system would work on that those trucks
HUMMVE100 1 year ago
@HUMMVE100 You get differential between each segment and between the wheels, the 8x8 has 7 differentials. And when you go offroad you just lock them and there isn't much to stop you.
cimmerianpraetor 1 year ago
@cimmerianpraetor thanks cause it was really confusing to me
HUMMVE100 1 year ago
This is an amazing feat of engineering design, but with all those moving parts, wouldn't the probability of a seal failure increase with increased heat from highway use ? And one other thing, is the braking system centralized within the driveline or is it a more convententional set-up within the hubs ?
rrb4826 2 years ago
I totally agree, I found it even more amazing once I started to work and repair the drive line and suspension system, the overall design was generations ahead of its time.
Its my understanding that road use does not make any significant difference to the life of the seals, it is more about overall mileage.
The braking is in the wheel hubs.
DiggermanNo1 2 years ago
Is there anyting good about this setup if you're driving on pavement? Or is this only for off-road use?
ff8123 2 years ago
Well we don't normally drive on the pavements as they are for pedestrians, however to answer your question, with the additional weight of the central backbone tube being so low down and assisting the truck's centre of gravity they go around corners like sports cars.
In general the TerrNo1 range is 2/3rds road and 1/3rd off-road, the Jamal series is 2/3rds off-road and 1/3rd on road and the military go where they damn well want.
DiggermanNo1 2 years ago
Yes of course. It's just I'm researching TATRA's passenger car history.
DIdn't TATRA engineer something like this for use on their old 1930's passenger cars?
ff8123 2 years ago
Yes you right they did and there is a really good video of this old 6x6 Tatra car on YT somewhere, I'll have a look and see if I can find it.
DiggermanNo1 2 years ago
@DiggermanNo1, well better late than never, here is the video link -
h t t p:// w w w . you tube.com/watch?v=9ursLDiSUEo&feature=related
DiggermanNo1 10 months ago
Sorry I forgot to mention it was Dr Ferdinand Porsche who designed the 1st VW Beetle.
And yes that is why all early Porsche designs were rear mounted air-cooled engines.
DiggermanNo1 2 years ago
the pinzgauer uses exactly the same layout - verbatim. Does anyone know whether it as licensed or did Steyr-Puch just copy it?
UKChris012 2 years ago
It was designed for them by Eric Ledwinka, son of the Tatra design concet inventor Hans Ledwinka, when he worked for Steyr-Daimler-Puch just after WW2, he designed the Halflinger concept first and then incorporated the Tatra central backbone tube with swinging half axles into a higher mobility vehicle that we now call the Pinzgauer, however it is not exactly the same as Tatra.
DiggermanNo1 2 years ago
There were a lot of engineering designs stolen from the Czech's in WW2 most notably the Tatra T97 which Hitler turned into the original VW Bettle, and Tatra air-cooled diesel engines became Deutz air-cooled diesel engines.
Ironically Ledwinka Snr was accused of Nazi collaboration and jailed in Czechoslovakia for several years after the end of WW2.
DiggermanNo1 2 years ago
That's very interesting; I've recently become a fan of Czech machinery. :)
thanks for the info!
UKChris012 2 years ago
@UKChris012 The backbone chassis was designed by Hans Ledwinka, the chief engineer of Tatra. His son Erich started his career in Tatra but after WWII he went to work for the Austrian Steyr company where he developed Haflinger and Pizgauer.
Gwafton 1 year ago
Awesome design and I love diff locks but this design has no differential at all..if all the diffs on the Tatra are of this design it must be very hard to turn especially if you used it on the road
toyota4x4canadaguy 2 years ago
This is only a slight disadvantage on the older 8x8 vehicles but is not a problem on the 6x6 models at all.
When used in truck trialling the steering geometry is changed for ease of use and faster response.
DiggermanNo1 2 years ago
I think this is simplified to show the swinging axles.I dont know for sure how it works but I can imagine theres an axle inside the yellow tube shown here Cut the tube in half at the outgoing axles center line, and place a set of gears attached to the earlier mentioned axle between the halves. Just like a normal diff, just kinda backwards. Really easy to make a lock too, just add a sliding sleeve with claws over the yellow yube, when locked it'll work like shown in the video again.
KapteinOpel 2 years ago
what does it mean by "swinging half axles with no joints"? no cv joints? is it better than traditional independent suspension set ups like on a 120 series landcruiser?
how does tatra's suspension compare to that of man and oshkosh trucks with solid axles? stronger? equal? maintenance-wise?
do their axles have full locking capabilities (t813, t815)?
kumquatsta 2 years ago
I'm not sure why, but you US guys don't seem to get the design, perhaps its because all of your trucks are just road bias, whereas in Europe we build road trucks and off-road trucks as totally separate design concepts.
DiggermanNo1 2 years ago
I can't explain the swinging half axles any better than the video does here.
It's not just the suspension that effects a Tatra's off road ability, it is also the central backbone tube that keeps the whole truck structure completely rigid, thereby making the suspension do all the work. Also the Tatra suspension works on downward travel rather than upward travel as on a road truck.
DiggermanNo1 2 years ago
The Oskosh suspension is quite pathetic in comparison to Tatra and MAN as it is a road based design, and they break down all the time.
The military spec MAN truck is the only other worthy competitor to Tatra, how ever it is much more complicated and expensive.
DiggermanNo1 2 years ago
thanks for the replay, it makes a lot of sense. i've been a tatra guy since reading a book about them in truck trials way back in the day.
you seem to know a lot about tatras. i have one question that has been nagging me. i always see tatra trial trucks with full cab roll cages, how do they access the motor for repairs or replacements? i thought the t813/815 had flip up cab access?
kumquatsta 2 years ago
Well I know a little bit about Tatra trucks but not everything, we used to have a T813 Kolos Europa Trialling truck with one of those big wrap around roll cages as you mention, the engine is inside the cabin and most of the access is gained by removing the internal covers, uless there is extra soundproofing it can be quite noisy, but nice and warm in the winter.
DiggermanNo1 2 years ago
I think dead axles can hold more, but for all terrain, and ride quality is better.
VALsacount2 2 years ago
Well yes and no, Tatra have several different suspension systems depending on the load requirement, but it all depends on which Tatra truck you are talking about, although they all have the same principal layout they are used for very different tasks.
The T813 Kolos was designed to pull a battle tank and trailer with 6 personnel in the cab and all their equipment in the back of the truck, all of this and off-road as well, so it is actually more of a tractor than a truck.
DiggermanNo1 2 years ago
but the torque also pushes axis up and down
dajsinjo 2 years ago
Yes you are right in your comment about the torque directions, they can be either way, I cannot remember my previous comment but as per the T813 Kolos which has double reduction hubs and was designed for towing a tank off road, then the transmission torque does pull the truck down towards the ground.
DiggermanNo1 2 years ago
wow they thought of that in 1923?!
hobanm45 2 years ago
good eye... LOL
rcmadness247 2 years ago
i fucken love this idea and the trucks
pommyrooter 2 years ago
Good idea :)
nordyk2 2 years ago 2
wow
stefanastro 2 years ago 2
Then, where is the differential unit ?
kojicho 3 years ago
when it zooms in you can see a round thin gear rotating with the driveshaft. then the gears for the axle are free to move up and down it. just watch when it first zooms in.
dabuddha669 2 years ago
There is no differential...At least i cant see it...
Zblj1987 2 years ago
when the narrator says "pinion gear" thats the differential. the two gears connected to the drive shaft. then theres two gears that are free moving on thge axles that can rotate giving it the independent suspension.
dabuddha669 2 years ago
Thanks for info, i googled arround and found they have rather weird, but real differentials
Zblj1987 2 years ago
fucken brilliant engineering....
pgwlgtnnz 3 years ago
I see how the system works and its a great piece if engineering but independent suspensions by itself helps a lot. Humvees and the MTVR 7 ton use independent suspension and it aids in better on road and off road driving. I have never seen competition between a Tatra heavy truck and the MTVR but itd be fun to watch. As far as the Tatra system goes its great I think a company in the US is using it called ATC. Forest fighters love Tatra trucks for off road ability no doubt there just not many here.
kmass5050 3 years ago
ATC is not existing any more, ATC trucks were actualy Tatras recalled in this stupid way for US market. ATC is gone, and Tatra trucks are selling in USA under original and only one correct name - Tatra by Tatra Americas company owned by Tatra a. s. company
berkut2 3 years ago
If this was put on a modern pickup truck this would be great. You talking about ease of movement off road I don't think you could get stuck. A ton truck with a diesel engine and this suspension would be a great asset in a harsh environment. Closest thing to this in the US is the Humvee and thier surplus. Independent suspension is showing up on US trucks but it is weak more fore ride comfort than anything and its only on the front. Tatra had thier stuff together when this was thought up.
kmass5050 3 years ago
kmass50%, You seem to have missed the bigger picture, the reason the Tatra is so good off road is because it also has the centre backbone tube and swinging half axles, using just independent suspension on its own is for road going vehicles.
DiggermanNo1 3 years ago
I dont know why this has turned into a political thread, but thanks to the poster for putting up a video that explains clearly the principle of Tatras suspension sysytem.
gpovanman 3 years ago
Does tatra or anybody else make a SUV like a jeep or landrover using this suspension.
kmass5050 3 years ago
T805 with added ground clearance from portal axles :-) not huge articulation, but still very able !
blankczechbook 3 years ago
Yes - Pinzgauer, which simply put is a smaller version of a Tatra in either 4x4 or 6x6 mode.
DiggermanNo1 3 years ago
No but it would be total beast mode.
VALsacount2 2 years ago
It's interesting how in the modern trucks the left and right wheels don't line up- does anyone know why this is done?
petem1989 3 years ago
Don't line up? If I understand you well - it is because the truck is not fully loaded, so one pair of weels is just not needed, they are pulled up to reduce tire-road rolling friction...
eof12 3 years ago
nah, you can see from the video that the right wheels on newer tatras are further back from the left ones, whereas in the tatra 11 they were in line with each other
petem1989 3 years ago
It's because of increasing number of changeable wheel movement axises which extends its offroad ability and maneuverability...
ehebob 3 years ago
Your right lee24/7, I'm not wasting anymore time trying to explain the concept to Americans who find it impossible to think not only outside of the box, but outside of the USA.
Another thing, Tatra is the only truck engine manufacturer in the world who can achieve Euro5 status without the use of any electronic gismos, yes that's right - by totally mechanical means, now that's some engine...!!!
DiggermanNo1 3 years ago
Digger, listen to yourself.
Neither you or I think Tatra trucks are bad, useless, old mechines. The only thing I am trying to state is there is room for improvment.
If you deny the fact that there is nothing to improve on then who is the one not thinking out-side the box? The people who strive to improve are never surpassed.
Your hatred for Americans is astounding, almost as if they took something from you... like your dignity. Perhaps your emotional maturity as well.
politicalbiker 3 years ago 2
If you think the depth of my anti American feelings are mine alone then you are mistaken, whilst I dont harbour any bad feelings towards any one in particular, I know that a significant majority of the rest of the world are shocked and angered by Bush - the Idiot in Chief, and his bunch of ultra right wing corporate American cronies who are not satisfied with creating another Vietnam, but have now brought the whole western democratic world to the edge of bankruptcy through fraud and greed.
DiggermanNo1 3 years ago
PS:-
As for my dignity and maturity well I am now the wrong side of 50, and whilst I am holding on to my senility, just, I am trying not to become a grumpy old man too soon, so the sooner Obama Bin Laden rights all the wrongs the better for all concerned.
DiggermanNo1 3 years ago
No political leader can or will "right the wrongs" of a country, individual or people. Such thinking is pure idolatry.
Obama will be just another president. No more. No less.
politicalbiker 3 years ago
Also, although I'm only seventeen, I know that attitudes like yours tear friendly nations apart. You cannot claim you dont hate individual Americans while hating Americanism. Our political system emerges from the grassroots, thus Americanism IS Americans.
Were you as shocked and angered by Saddam Hussein as you are by Bush? Does tyranny revolt you? If not, why not?
politicalbiker 3 years ago
@DiggermanNo1 Fulfilling of the Euro5 regulations is very well done from Tatra - especially because the T928 engine concept originates from late 1940's, designed by Julius Mackerle. :)
Gwafton 1 year ago
awrite DiggermanNo1?
its real sad when posting information 4 folk,they still cant get it lol
another 1 who just cant grasp it,companies dont last for hundreds years with trucks that scrub tyres not tires on outside lol
lee2217 3 years ago
thanks DiggermanNo1 for posting this seems very good design and idea
btw bud dont waste time trying to argue wiv yanks lmao
fekin waste a time mate,where bouts in scotland u fae im an ayrshire man ma sell ;)
lee2217 3 years ago
Lee24/7, thanks for your comments.
Yeh, yanks - know everything about nothing.
I come from Dalmuir, Clydebank but I was captured by the Engerlish some time ago.
DiggermanNo1 3 years ago
engerlish lol
i fink uits a case of what folk dont know about they just fink is rubbish
tatra must be doing sumfing right if still making trucks,especially if still aircooled due to emission laws etc
lee2217 3 years ago
Actually, Tatra now has an air-cooled engine (in-house R&D) that is EURO 5 compliant. ;-)
Tia1ko 3 years ago
Hmm, that was for lee2217 ... :/
Tia1ko 3 years ago
cool bud,thats an achievement especially since deutz now make watercooled engines :)
tatra rocks
lee2217 3 years ago
The idea is rather simple. My guess is that they asked themselves "Why fix something that isn't broken?" They would be right...
But, their missing the point. Its not the companies that stick with a single idea and improve on it that catch my eye. Its the companies that come out with thinking outside-the-box ideas that catch everyones eye.
You can see the tire is anything but flat when the suspension is at full droop travel. Thus, less grip. Thats a bit beyond what we call "camber". Fix it
politicalbiker 3 years ago
Well PB, where do I begin...?
The best ideas always look simple, but this idea is not as simple as it first looks, its not just about the suspension, it is about a whole on/off-road vehicle concept, and for some reason Americans really struggle to grasp the concept.
I think one of the problems is Oshkosk, which seems to think its an off-road truck, if so you need to forget everything you already know about trucks and look at more Tatra information - try the 1922 Tatra T-26 YT video 1st.
DiggermanNo1 3 years ago
Explain to me what exactly you think Americans cannot grasp as far as on/off road vechiles? Please, try not to be Bais.
Secondly, one of the most important factors (If not the most important) of a off road vechile that has good road manners is suspension. I do agree that there is a concept you must follow to create something worthy, but it is definitely not the only factor, nor is engineering.
Your cannot deny the fact they have kept the general idea for many years. Lets see something new.
politicalbiker 3 years ago
It's a very clever system for off-road driving, and reduces the chassis weight I guess. The problem I saw when driving behind one is that there is a lot of positive camber when driving with no load. I saw a cement truck with dual rear wheels, the outer ones being almost totally worn down.
petem1989 3 years ago
petem1989, yes you are right although technically speaking the chassis only has to carry the bodywork as the backbone tube is the rigitity aspect. The idea was to be 50/50 when loaded and unloaded so the tyre wear would even out over a period of time.
The newer air suspension systems don't suffer from this anymore.
DiggermanNo1 3 years ago
no differential?
arvekvalvik 3 years ago
All time four wheel dive baby
Tomdabananaman 3 years ago
of course it has differentials
cimmerianpraetor 3 years ago
Tatra!!
Guardtheheart 3 years ago
Our truck makers dont need this level of articulation. They dont have to transport across all-terains. A truck ever leaving tarmac is odd. The reason American companies are not all copying Tatra is because there is no reason to.
Tomdabananaman 3 years ago
Forget it, you don't understand.
DiggermanNo1 3 years ago
Exactly. Vehicles with suspensions like these are always made in some country with bad roads. Hence, Citroen's active suspension systems.
ruiferreira89 3 years ago
Agreed. This type of suspension, or any form of extreme articulation and capability, is pretty useless when it is not needed, and especially when it costs quite a bit more. Tell me DiggermanNo1, what do I not understand?
Tomdabananaman 3 years ago
WOW!
why our truck makers(Freightliner,Mack and Kenworth)aren't eager to embrace such cutting-edge technology fron our european counterparts?
californiaspider 3 years ago
Hi californiaspider, I guess its too extreme for your trucks maker, it would take a major change in overall design philosophy. although ATC (American Truck Company) are selling Tatra based trucks to the US forestry fire departments, so far in Nevada, Arizona, and San Diego.
DiggermanNo1 3 years ago
...and our armed forces are currently using TATRAS on their tactical/recognition/transport units
ma55aracin9 3 years ago
Do you have any details about that? What type are they using, when did they buy it and so on?
cimmerianpraetor 3 years ago
Simple but great idea! Congratulations!
mieszalniapasz 3 years ago
Typical f***king yank - knows everything about nothing. You people and your country are the f***king joke of the world.
Voted in George Bush, not once but twice - how f***king stupid can you get!!!
DiggermanNo1 3 years ago
Very interstinc!
sikorski 4 years ago
Thanks for posting. Things make a lot more sense when you see them animated!
gpovanman 4 years ago
NICE , 5 Stars.
mauricera 4 years ago 2
great video
Lizzard00 4 years ago