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Armor/AFV
For all military ground-force modelling subjects.
Mk23 MTVR & 16.6 ton LHS
165thspc
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Posted: Monday, November 14, 2016 - 03:09 PM GMT+7
Just thought I would pick a few photos to show the level of detail you will get with this kit.





165thspc
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Posted: Monday, November 14, 2016 - 03:21 PM GMT+7
Still waiting for that second Mk23 kit and trying to do further research so I will know what to do with it when it arrives.
HeavyArty
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Posted: Monday, November 14, 2016 - 03:26 PM GMT+7
Looking great so far. Those pipes look great.
DocEvan
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Posted: Monday, November 14, 2016 - 03:43 PM GMT+7
Mikey, you are one scary guy!! As a truck modeler, I'm surprised the Mk23 flew off my radar; I'll have to check that out!

Loving this build...more please!!
165thspc
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Posted: Tuesday, November 15, 2016 - 03:11 AM GMT+7
Quoted Text:
____________________________________________________________________________________________________________

Maybe it is a version they are offering to the European market. Still not sure what is between the cab and lift mechanism though.
___________________________________________________________________________________________________________

That is a support to hold the X-Frame container loading fixture when it is not in use. Then there is also the modular (electro-hydraulic) LHS control box behind it. It is the same one used on the HEMTT LHS


(Photo courtesy of Henri-Pierre)
165thspc
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Posted: Tuesday, November 15, 2016 - 11:43 AM GMT+7
Anyone happen to know what this structure might be?

I thought it was torsion bar suspension for axle #2 and then I saw the third image and that changed my mind. How I don't know what this bar might be.






165thspc
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Posted: Wednesday, November 16, 2016 - 03:52 AM GMT+7
If anyone has questions about how to make the front axle steering flexible or just general questions about the Mk. 23 be sure to check out Gino's "New Product Review/Build Log" on Armorama at:

http://www.armorama.com/modules.php?op=modload&name=Reviews&file=index&req=showcontent&id=9242
HeavyArty
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Posted: Wednesday, November 16, 2016 - 04:09 AM GMT+7

Quoted Text

Anyone happen to know what this structure might be?

I thought it was torsion bar suspension for axle #2 and then I saw the third image and that changed my mind. How I don't know what this bar might be.



Purely conjecture, but could it be a stiffener for the frame? Maybe that section of unsupported frame with the weight of the hoist/load at that point has a tendency to fail, so they added a bit more beef to that area.

Thanks for the nod above too. I'm glad it was helpful.
Bigred69
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Posted: Wednesday, November 16, 2016 - 09:38 AM GMT+7
Hi Mike, what a great looking model so far.
165thspc
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Posted: Wednesday, November 16, 2016 - 01:02 PM GMT+7
Thanks Ronnie. - I appreciate the encouragement.

Gino - I just do not know what to make of that structure. Doesn't look like the 8x8 has it so for now it doesn't affect me.
______________________________________________________________________________________________________

OK while I am waiting for the second truck kit to arrive from China here's the plan:

First: Add the rearmost cross member to the existing frame. Once the glue is hardened back there I will cut that part of the frame and shorten it a scale 14".

Second: Use the existing frame and kit parts to build the last two steering axles. Mount the two axles to the existing frame and set the wheels at a proper steering angle. Then build the frame tray to hold the two rear steering gearboxes.

Third: When the second kit arrives use those parts to build the #2 fixed, non-steering axle plus pass thru differential and use parts of the second frame to extend the overall vehicle to it's finished 32' - 9 1/2" length.

165thspc
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Posted: Thursday, November 17, 2016 - 03:05 AM GMT+7
Step One: Shorten rear frame 14" - ROUNDS COMPLETE!
165thspc
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Posted: Thursday, November 17, 2016 - 03:26 AM GMT+7

Step Two: Building the two rearmost axles and modifying them to steer. Off to a good start.


These three photos are real - no photoshop here.
Frenchy
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Posted: Thursday, November 17, 2016 - 04:15 AM GMT+7
Hi Mike

You probably know these drawings already....



Full size

H.P.
Taylornic
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Posted: Thursday, November 17, 2016 - 04:22 AM GMT+7
Looking good. I have no idea about the bracket you are asking about. Too bad these arent going up n down the road on dropdecks so I could get some pictures.
Pictures just dont exist for these trucks...
165thspc
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Posted: Thursday, November 17, 2016 - 05:06 AM GMT+7
Once again this is photoshop and NOT actual cut plastic but the picture gives a good idea what is going to happen. What the final look of the steering gear will be, however, is another matter. (But I have an idea forming in my mind.)

Stickframe
#362
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Posted: Thursday, November 17, 2016 - 05:14 AM GMT+7
Photoshop or not - looks great! Very nice work!
Yes - the steering - looking forward to that!


Cheers
Nick
165thspc
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Posted: Thursday, November 17, 2016 - 05:20 AM GMT+7
Frenchy - thank you very much!!!!!

I have been trying to find this very drawing of the Mk23 4x4 without any success.

This is perfect timing as the last few days I have been wondering/planning just how I might cut the frame and the load box to build the shorter 4x4 bobber out of the left over spare parts from the two kits. WOW!
165thspc
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Posted: Thursday, November 17, 2016 - 05:26 AM GMT+7

Quoted Text

Looking good. I have no idea about the bracket you are asking about. Too bad these arent going up n down the road on dropdecks so I could get some pictures.



Taylor - Too bad we don't live nearer to a Marine or Navy base. In San Diego or Camp Lejeune it might be a different story!
165thspc
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Posted: Thursday, November 17, 2016 - 05:51 AM GMT+7
Talking about steering gear on the Mk23:


Main driver controlled steering gearbox.


Secondary slave steering gearbox.
165thspc
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Posted: Thursday, November 17, 2016 - 06:39 AM GMT+7
A Pierce Fire Equipment image we have seen before - the two-axle "rear steer" structure:


Close-up of the steering gear deck:


Close-up of unequal pitman arms with steering deck and gearboxes removed.
Frenchy
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Posted: Thursday, November 17, 2016 - 09:21 AM GMT+7
On a side note, I guess the 4x4 variant was the one used as a base by Oshkosh for their TerraMax UGV (Unmanned Ground Vehicle) to compete in the DARPA Urban Challenge 2007 edition :


This prototype was fitted with a steerable rear axle :

https://www.youtube.com/watch?v=CSPd6TyXPAo

H.P.
165thspc
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Posted: Thursday, November 17, 2016 - 02:28 PM GMT+7
Steering gear deck installed:

I used the steering gearboxes here that were originally intended for the front axle. I will finish the steering work on the front axle assembly when the second Mk23 kit arrives.

HeavyArty
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Posted: Friday, November 18, 2016 - 12:37 AM GMT+7
Looking good. The steering gearboxes and shelf came out nicely.
165thspc
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Posted: Friday, November 18, 2016 - 07:02 AM GMT+7
Thanks Gino - F.Y.I. gonna use old left over Deuce and half winch driveshalfs and U-joints for the steering shafts here.
HeavyArty
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Posted: Friday, November 18, 2016 - 01:33 PM GMT+7
As requested to assist in positioning of the steering parts/wheels.