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M983A4 HEMTT Tractor - PATRIOT PAC-3 Battery Vehicles Build #4

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  • Member since
    December 2002
  • From: Valrico, FL
M983A4 HEMTT Tractor - PATRIOT PAC-3 Battery Vehicles Build #4
Posted by HeavyArty on Friday, May 26, 2023 5:27 PM

I seperated this out from the below since it was getting confusing.

https://cs.finescale.com/fsm/modeling_subjects/f/3/p/192136/2216203.aspx#2216203

 

M983A4 HEMTT Tractor

Since I am awaiting a few more 3D printed parts, I went ahead and started the last vehicle for this Patriot Battery set. It is the M983A4 Tractor, which is the prime mover for the Radar and launcher trailers. It is also the latest version of HEMTT which has a new air-ride suspension, new longer cab from the M1074 PLS, and a new engine area arrangement.

A few reference pics.



 

There is no kit nor conversion set (so to speak) for an A4 HEMTT.  To that end, most of it will be scratch/converted starting with the Trumpeter M983A2 frame (left over from my M985A2 build) and the rest will be from an Italeri M977A2 kit.

I started with the suspension. As I said, it has a new air-ride suspension with the front and rear ones being different.

 

I started with a set that incorrectly has 4 of the rear suspension units, as opposed to two rear and one front, like above, that I got off Shapeways. Additionally, the mounts and air bags on them are too short to give it the proper stance and fit the axles.

https://www.shapeways.com/product/BEQS26APR/1-35-scale-hemtt-a4-suspension-kit-ad-130-full-set?optionId=303371673&li=ostatus

I started with the rear units which are individual cantilever mounts. To fix them, I cut off the bags and axle mount tabs. I then added pieces from the kit that go onto the sides of the axle mounts to extend the mounts for the new rear units. The bags are beads from my wife’s jewelry-making kit.

IMG_2416

On the front, the suspension is anchored in the center and has arms that the axles pivot on from this center point. To replicate them, I used the kit suspension unit cross bars and cut off the springs. I also cut about 1/8 inch from the top of the mount. I also added the end that attaches to the frame to this center section and added a couple pieces that went on the inside of the kit suspension units to finish both sides of the new center mount/pivot point. On either end of these new arms, I cut away the rear section of the Shapeways mounts, just behind where the axle would mount. I added these and the same air bag bead to each end.  I may rework the mount to look more like the TM drawing above, but I think it is a good start.
IMG_2417

Here is the full new air-ride suspension.

IMG_2411
IMG_2413

More to come on the truck later in the week.

Next up will be the new engine deck. There is one at Shapeways by the same guy who did the suspension units. It looks OK, but he wants over $100 bucks for it. I will be doing it myself using sheet and shaped styrene.

https://www.shapeways.com/product/MBGBHJNG8/1-35-scale-hemtt-a4-piggy-back?optionId=67304373&li=marketplace

 

 

Gino P. Quintiliani - Field Artillery - The KING of BATTLE!!!

Check out my Gallery: https://app.photobucket.com/u/HeavyArty

"People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." -- George Orwell

  • Member since
    December 2002
  • From: Valrico, FL
Posted by HeavyArty on Friday, May 26, 2023 5:28 PM

I reworked the front axle mount. I think it looks a lot more like the TM pic now.

IMG_2418

image

Gino P. Quintiliani - Field Artillery - The KING of BATTLE!!!

Check out my Gallery: https://app.photobucket.com/u/HeavyArty

"People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." -- George Orwell

  • Member since
    May 2009
  • From: Poland
Posted by Pawel on Saturday, May 27, 2023 2:27 AM

Hello Gino!

I'm a big fan of your conversion builds! Somehow I think the Army trucks don't get enough attention from the modelling scene. For a long time the only model of the HEMTT was the Italeri offering which is just bad... And then they upgraded the HEMTTs and Trumpeter brought out something more correct - of the old version! The current version is still not represented and you have to do a conversion.

Anyhow, I'll be watching, good luck with it and have a nice day

PaweĊ‚

All comments and critique welcomed. Thanks for your honest opinions!

www.vietnam.net.pl

  • Member since
    December 2002
  • From: Valrico, FL
Posted by HeavyArty on Saturday, May 27, 2023 7:23 AM

Thanks Pawel.  Yup, I wish there was a model of the HEMTT A4, then I wouldn't have to build it.  It is fun though.  Maybe now that I have built it, Trumpeter will announce one. Big Smile

Gino P. Quintiliani - Field Artillery - The KING of BATTLE!!!

Check out my Gallery: https://app.photobucket.com/u/HeavyArty

"People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." -- George Orwell

  • Member since
    November 2005
  • From: Formerly Bryan, now Arlington, Texas
Posted by CapnMac82 on Saturday, May 27, 2023 1:06 PM

HeavyArty
Maybe now that I have built it, Trumpeter will announce one. Big Smile

And a Ukrianian company will beat them to the shelves--with a better version Big Smile

  • Member since
    November 2009
  • From: SW Virginia
Posted by Gamera on Saturday, May 27, 2023 10:03 PM

Glad you guys know the details- they all look like a big honkin' truck to me... Dunce

"I dream in fire but work in clay." -Arthur Machen

 

  • Member since
    December 2002
  • From: Valrico, FL
Posted by HeavyArty on Sunday, May 28, 2023 10:01 AM

CapnMac82
 
 And a Ukrianian company will beat them to the shelves--with a better version  

 

I doubt it.  Trumpeter's HEMTT A2 kits are great and noone has attemped anything better.

Gino P. Quintiliani - Field Artillery - The KING of BATTLE!!!

Check out my Gallery: https://app.photobucket.com/u/HeavyArty

"People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." -- George Orwell

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