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Hobby Boss- 48N6E of 5P85S TEL S-300PMU SA-10 GRUMBLE

Kit Number:
Sunday, November 21, 2021
Hobby Boss
Retail Price:
Reviewed By:
James Spellmire

48N6E of 5P85S TEL S-300PMU SA-10 GRUMBLE 

1/72 Scale

by Hobby Boss



For the First Look review, please see:

Steps 1 - 5 (Chassis build):


Steps 1 through 5 cover assembly of the chassis and wheels.  For the most part, the illustrations are sufficient to complete each step.  However, the sequence of attaching the wheels and other parts are not clear. 


After some trial and error, the sequence should go as follows:

Attach the tire to the wheel drum, then attach this assembly to the chassis.  Once they are clipped in place, attach part A19/A21. If Part A19 or A21 is glued in first, you will not be able to clip the wheel in place.

Since the wheel assembly is clipped on and has a three point connection, there is no issue with wheel camber.  

Also, the attachment of the exhaust (part A23) is a bit confusing:

It calls for attaching it opposite part A26 (the exhaust on the other side), but no where in the instructions are you told to attach part A26.  Since the illustration shows it there, I added that part on the other side. I also found a walk-around site on the internet and it appears that this is on both sides.

Steps 6 - 9 (Cab Build)

Steps  6 through 9 cover assembly of the forward cab.  I found no issues in following the illustrations in building this, but there is absolutely nothing provided to guide you in painting the interior.  I was able to find a 140+ picture walk around of a SA-10 Grumble on DishModels, a Russian website which my anti-virus/malware protection software allowed me to access. I found a few pictures of the cab interior so I could paint the details (eg., sets, brake handle, electric boxes, etc.) in the proper colors before attaching the floor and right wall to the rest of the cab casting.


The clear windows are set from the inside, and the excess frames need to be painted to match the rest of the interior walls.

Once I determined no further interior painting was needed, the driver compartment was test fitted and then sealed.

The final steps here attach the cab subassembly to the chassis.


Once this was finished, I realize that it may be difficult to paint the underside with all of the detailed parts blocking areas where a paint brush may no longer get to. 

Steps 10 - 15 (Missile Launch Platform and Tubes)

Steps  10 through 15 cover assembly of the truck bed with attached missile launching tubes and elevation mechanism. Assembly is still straightforward, but note that parts F3 and F4 are not marked on the sprue.  The number is on the inside of each part.

As long as you follow the instructions and do not cement the moveable parts as indicated, you will be able to display the model in either travel or firing position. 

The slide molded launch tubes required a bit of clean up from the several mold gate separation points as well as the seam lines. I assembled the launch tubes while still attached to a sprue for ease of painting before attaching them to the model.


Step16 (Final Assembly)

The final assembly covers building and attaching the launch panel structure to the platform and then attaching the platform to the chassis.

It is a bit fiddly to get the platform over the rear two extended stabilizer posts and onto the chassis, but with patience and some trimming here and there, I finally got it to sit correctly.


Painting, Decals and Final Assembly

I chose scheme #IX in the Marking and Painting Guide since my reference photos were of the SA-10 Grumble depicted there.  The Marking and Painting Guide provides all of the required information needed to complete the model, but note that all of the universal decals and painting of lights are indicated on the scheme for #I.  Also, the list of paints is broken down into four sections with each section appearing on one of the page sides. I created quite a breeze with my page turning to confirm which colors to use and where.   


Once the base coat was on and decals applied, I went back to Step 7 and added the headlights, the searchlight on top of the cab and the mirror.  I then applied some initial weathering to the launch tubes and the vehicle before attaching them in place. Final touchups and weathering were applied to complete this full build.



This is a very well detailed kit in 1/72 scale of this subject when built out of the box.  However, air hoses can be added to the launch panel structure by the modeler who wishes to add further details.  The attachment points are all there. Only reference photos are needed to guide you in their placement.

Although Hobby Boss does not provide the option of having the vehicle in total transport mode, this can easily be done during construction with a few cuts to parts A1 and A2 in step 5 and gluing the stabilizer pads in a raised position.  

Highly Recommended for Beginner to Advanced builders.

Thanks goes out to Model Rectifier Corporation for this review kit.

Reviewed by James Spellmire


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