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Old 16th December 2008, 14:59   #31
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i saw two similar tatra trucks on the ring road ,all the four wheels in the front can turn and they had also switched on the orange lights n the top of the cabin,something the what ministers cars have
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Old 16th December 2008, 14:59   #32
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Army uses which motorcycles ?same old enfield ones? :(
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Old 16th December 2008, 15:01   #33
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Quote:
Originally Posted by amit V8 View Post
can anyone tell me why are the wheels inclined like this?? a new kind of an axle or something else??
This truck is not laden.

Wheels are at an angle, probably to compensate for tons of load. That load should correct this angle.
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Old 16th December 2008, 15:36   #34
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Quote:
Originally Posted by amit V8 View Post
can anyone tell me why are the wheels inclined like this?? a new kind of an axle or something else??
Even diesel autos tires are at a angle.once they are under load it becomes straight.
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Old 16th December 2008, 16:35   #35
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It appears like the truck has independent suspension at every wheel and the arm pivots around a central point on the chassis. When loaded the wheel will straighten.

Watch some amazing youtube videos of these Tatras. The way each wheel tracks the surface is a delight to watch. Its like a centipede in action

Last edited by DKG : 16th December 2008 at 16:38.
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Old 17th December 2008, 04:27   #36
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Quote:
Originally Posted by deepclutch View Post
Army uses which motorcycles ?same old enfield ones? :(
They had started using HHCD-100's few years ago
but now they are back To RE's for good.
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Old 17th December 2008, 06:02   #37
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Quote:
Originally Posted by amit V8 View Post
can anyone tell me why are the wheels inclined like this?? a new kind of an axle or something else??
its done as a method of load bearing. when the truck is loaded the wheels bear down - and hence the road contact is better. you see the same on the greaves garuda autos as well.

But on the Tartra trucks (hope i got the spelling right) the wheels are bent like this so because they are self adjusting. I remember reading this in an Auto mag when they had just launched, the tech is that the wheels adjust to the terrain and then they are powered so that the truck can get out of sticky situations.

Last edited by madan80 : 17th December 2008 at 06:10.
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Old 17th December 2008, 06:25   #38
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Quote:
Originally Posted by akshay4587 View Post
They had started using HHCD-100's few years ago
but now they are back To RE's for good.
that means ,they dont have gun mounted motorcycles etc :( .
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Old 17th December 2008, 07:07   #39
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Quote:
Originally Posted by deepclutch View Post
that means ,they dont have gun mounted motorcycles etc :( .
Since I have been living in a Cantonment since past 18 years,I guess no
I have come across all kinds of vehicles used in battlefields.
but havent come across any 2 wheeled combat vehicle.

Last edited by akshay4587 : 17th December 2008 at 07:10.
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Old 17th December 2008, 07:12   #40
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@amit, prem, nithz, and the threadstarter

Coool pics. Awesome job. What camera phone do you guys use?
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Old 17th December 2008, 07:46   #41
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Default Rigid Central Backbone and Independently swinging half axles

Quote:
Originally Posted by amit V8 View Post
can anyone tell me why are the wheels inclined like this?? a new kind of an axle or something else??


Quote:
Originally Posted by Proxima View Post
^^
Ram (D-BHPian) might know. PM him if really interested.
It's because of the independently swinging half axles on the rigid central backbone chassis

Rigid Tube Central Backbone
The Tatra suspension system has a rigid central "backbone" tube chassis

Name:  TatraT8158x8.jpg
Views: 68607
Size:  23.8 KB

This prevents torsion or bending of the chassis and superstructure, thus assuring safe and trouble-free transport of the missile systems, sensitive loads and special superstructures.

Also facilitates long chassis life, high ride comfort and permits faster off-road driving.

The driveline shafts and other components are covered and protected inside the "backbone" tube.
Also the chassis can operate "frameless".
So certain bodies can be fixed directly to the chassis crossmembers

Independent Swing Axles
There are independent swing half-axles:
Each wheel can move up and down independently.

Name:  KingFramecombinationsuspension.jpg
Views: 20503
Size:  31.5 KB

This facilitates exceptional off-road mobility -- remarkably higher speed over obstacles
The swing half-axles are extremely resistant against impacts and shocks

Modular Component Design
The "modular" design gives a high degree of commonality between commercial and military models,
four-wheel-drive, six-wheel-drive, eight-wheel-drive and ten-wheel-drives.
It lets the designers customize for any wheelbase.


All side-axle and inter-axle differentials are lockable diffs.
Tatra military trucks also have a central tire inflation system (CTIS)

Ram

Last edited by Ram : 17th December 2008 at 07:51.
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Old 17th December 2008, 08:55   #42
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Red face

Quote:
Originally Posted by akshay4587 View Post
Since I have been living in a Cantonment since past 18 years,I guess no
I have come across all kinds of vehicles used in battlefields.
but havent come across any 2 wheeled combat vehicle.
this is really sad.I have seen Pakistan's gun fixed bikes(looks like motocross ones!).and we are still on a 70 year old Enfield .even I own a bullet.but what is the use in a war with such a old hefty motorcycle?
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Old 17th December 2008, 09:31   #43
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this is a nice thread , the pictures really are good.

I have seen the 8x8 tatra trucks quite often on the ring roads in bangalore.

The Tatra vehicles are really a class apart ...
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Old 17th December 2008, 10:26   #44
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Great thread, to say the truth I have not seen many Armed forces vehicle in person. Very informative.!!!
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Old 18th December 2008, 20:28   #45
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Quote:
Originally Posted by Ram View Post
It's because of the independently swinging half axles on the rigid central backbone chassis

Rigid Tube Central Backbone
The Tatra suspension system has a rigid central "backbone" tube chassis


This prevents torsion or bending of the chassis and superstructure, thus assuring safe and trouble-free transport of the missile systems, sensitive loads and special superstructures.

Also facilitates long chassis life, high ride comfort and permits faster off-road driving.

The driveline shafts and other components are covered and protected inside the "backbone" tube.
Also the chassis can operate "frameless".
So certain bodies can be fixed directly to the chassis crossmembers

Independent Swing Axles
There are independent swing half-axles:
Each wheel can move up and down independently.


This facilitates exceptional off-road mobility -- remarkably higher speed over obstacles
The swing half-axles are extremely resistant against impacts and shocks

Modular Component Design
The "modular" design gives a high degree of commonality between commercial and military models,
four-wheel-drive, six-wheel-drive, eight-wheel-drive and ten-wheel-drives.
It lets the designers customize for any wheelbase.


All side-axle and inter-axle differentials are lockable diffs.
Tatra military trucks also have a central tire inflation system (CTIS)

Ram
thanx, mr ram. got the idea. your xplanation is pretty nice.
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