155 AUF1 GCT Self-Propelled Howitzer - 1/35 scale

A humorous cartoon of a woman in fatigues standing in front of an artillery self-propelled gun, saying, “This thing is awesome.”

Two copies of the Heller kit will be used...

It's worth noting that since this tutorial was published, the MENG brand has released a superb, highly detailed 155 auf 1 model...

155 AUF1 GCT self-propelled locomotive, model of a tracked military vehicle currently under construction

Above: two of the many photos that helped determine the choice of tanks for the diorama...

Model of a 155 AUF1 GCT self-propelled howitzer with a figure of an armed soldier in front of the gun

Scale model of the 155 AUF1 GCT tracked self-propelled gun currently under construction, featuring a detailed chassis and superstructure

editing/char1

Model parts for the 155 AUF1 self-propelled howitzer: sand-cast hull, metal gun, and resin components

Start by gluing the two-piece parts together, then fill and paint to cover up any imperfections...

Big problem: the two lenses from the two boxes—even though they were bought a year apart from different retailers—are... warped! They're unusable!!

Model of the 155 AUF1 self-propelled howitzer with a green barrel and beige shield

The barrels are sawed off at the base and at the muzzle brake and replaced with paintbrush handles!

Sand-colored 155 AUF1 GCT self-propelled gun model chassis with tracks and detailed engine grille

The visible track pads are cut out with a utility knife, and then the removed pieces are sprinkled with sand on a base of white glue to show wear...

The hull of the 155 AUF1 GCT self-propelled gun, with its separate roof, undergoing assembly

The two glacis from the kit. The original on the left and the modified version—AMX 32—Middle East...

Model of the 155 AUF1 GCT Self-Propelled Gun, showing the undercarriage and tracks

The toolboxes are hollowed out and divided into compartments on the inside...

Scale model chassis of the 155 AUF1 GCT self-propelled gun without a turret; modified fenders currently being installed

Scale model of the 155 AUF1 GCT self-propelled howitzer's tracked chassis with metal fenders

Scale model of the 155 AUF1 GCT self-propelled howitzer chassis, side view without turret

Three views of the installation of the aluminum sheet fenders and the trunk lids. Note the photo-etched exhaust pipe guards provided by Heller...

Scale model of the tracked chassis of the 155 AUF1 GCT self-propelled howitzer currently under construction

Additional views of the detailed work on the entire body. Some parts have been refined, while others have been removed and replaced with new ones...

Beige resin turret of the 155 AUF1 GCT self-propelled howitzer before assembly

The turret from the kit...

Yellow resin cab body of the 155 AUF1 self-propelled gun with gray filler

The hardest part starts here. First, hollow out all the openings. Then rebuild the fire control turret, which isn't very well designed in this model... Next, remove the side armor plate and the tool bars...

Roof platform of the 155 AUF1 model with white mesh railings and a gray floor

The hole at the base of the turret has been closed, and a floor has been installed. Installation of the partitions separating the breech from the gun and the crew members...

Turret of the 155 AUF1 GCT self-propelled howitzer under construction, with putty and gun barrel

"Dry run" of the entire system...

Beige resin cab body of the Automoteur 155 AUF1 GCT under construction

Another view...

Interior of the turret of the 155 AUF1 self-propelled howitzer, currently being outfitted and detailed

Starting to add detail to the turret ceiling. It’s a complicated job—some parts can only be glued to the floor, others to the ceiling, and everything has to fit together without breaking when the two halves of the turret are glued together!

Scale model of the interior compartment of the 155 AUF1 GCT railcar, featuring seats and grilles

Manufacturing and installation of seats...

Scale model of the cockpit of the 155 AUF1 self-propelled gun, with seats and mesh screens

Another view...

Interior view of the scale model showing the detailed layout of the passenger compartment of the 155 AUF1 railcar

 The interior is starting to take shape...

Scale model under construction of the turret interior of the 155 AUF1 GCT self-propelled howitzer

Manufacturing the Evergreen plastic ammunition compartment...

Scale model of the 155 AUF1 GCT self-propelled howitzer chassis without turret, featuring a detailed interior of the fighting compartment

Scale model of the 155 AUF1 GCT self-propelled gun currently being assembled, featuring a tracked chassis and a detailed turret

Two photos of the ammunition compartment mounted on the turret floor...

Detailed interior of the turret of the 155 AUF1 self-propelled howitzer, showing fittings and wiring

The interior of the completed turret, including the wiring and the automatic loading rail...

Model of the 155 AUF1 GCT self-propelled howitzer under construction, with turret and tracked chassis

Testing the turret installation...

Model of the 155 AUF1 GCT self-propelled gun currently under construction; hull and tracks assembled

The uneven alignment of the "shelves" is intentional, as they are movable...

Painting/Interiors/Car 1

Open turret of the 155 AUF1 self-propelled howitzer, showing the detailed interior and the green gun barrel

The interior of the turret is painted and shaded before final assembly...

Model of the 155 AUF1 GCT self-propelled gun under construction, with a beige hull and a green gun

Once the interior is finished, work on the exterior details continues...

Model of the 155 AUF1 GCT self-propelled gun under construction, rear view of the unpainted tracked chassis

The side doors are made of plastic sheet, while a rubber gasket is glued to the recessed areas. The lead ammunition panels included in the kit are then glued in place using new fasteners...

Model of the 155 AUF1 self-propelled gun under construction on the workbench, surrounded by blueprints and tools

View of the work surface. Drawings are essential for making sense of all this chaos!

Model of the 155 AUF1 GCT self-propelled gun currently being assembled, with gun and tracks

Assembly and gluing of the turret machine gun mount...

Model of a 155 AUF1 GCT self-propelled gun in sand with a long green barrel, three-quarter front view

The first tank is finally finished! Phew!

Editing/char2

Sand-colored hull of the 155 AUF1 self-propelled gun with turret opening and small spare parts

The body of the second vehicle is undergoing the same restoration process, except for the engine compartment, which is severely damaged (so, the more we tear down, the more we have to rebuild!)...

Painted and weathered track with road wheels on the model of the 155 AUF1 self-propelled howitzer

Since part of the piece had burned, the visible pads on the left track were removed with a utility knife and replaced with the fasteners... The rubber treads on the burned wheels were removed with a sander...

Scale model of the 155 AUF1 GCT self-propelled howitzer chassis without turret, featuring tracks and modifications made from Plasticard

The rear shelf is recessed and lined...

Scale model chassis of the 155 AUF1 GCT self-propelled gun without turret; metal modifications to the hull

Detailed view of the glacis...

Metal tool parts attached to a sand-colored model shovel

The barrel sleeves are sanded with white glue...

Assembled and filled beige plastic cab body of the 155 AUF1 GCT self-propelled howitzer

The second turret... Heavily damaged!

Scale model of the 155 AUF1 GCT self-propelled gun under construction, featuring a detailed cab and interior structure

A view of the interior after the various parts have been assembled...

Scale model of the 155 AUF1 GCT self-propelled gun under construction, featuring a tracked chassis and an open cab without details

Turret positioning test...

Model of a 155 AUF1 GCT self-propelled gun under construction, three-quarter rear view

Another view...

Die-cut plastic parts and a round photo-etched grille for a 155 AUF1 self-propelled gun model

Manufacturing the various engine plates from plastic sheet. The grille from the original kit is cut out and saved...

Detailed engine compartment of the Automoteur 155 AUF1 GCT model with cover plate

Installation of the engine, transmission, and side air vents... Here, precision isn't a top priority, since most of it will be hidden...

Close-up of the red-painted engine compartment on the 155 AUF1 self-propelled gun model currently under construction

Installation of the first floor...

Cardboard model part with a photo-etched gold-colored round grille for the 155 AUF1 self-propelled gun

The hood emblem and the cut-out, refined grilles from the original kit...

Model of the 155 AUF1 GCT self-propelled gun under construction, showing the open red engine compartment

Installing the engine hood panel that was crushed by the explosion...

Model of a 155 AUF1 GCT self-propelled gun in sand color with a long barrel, tracked chassis, and photo-etched parts

Beige 155 AUF1 GCT self-propelled vehicle model under construction, three-quarter front view

Two views of the finished model...

Painting

Unpainted model of the 155 AUF1 GCT self-propelled howitzer being assembled on tracks

Unpainted model of a 155 AUF1 GCT self-propelled artillery piece, with the long barrel pointing to the right

Both tanks are given a coat of acrylic primer from a spray can...

Scale model of the 155 AUF1 GCT self-propelled artillery piece with a long barrel, three-quarter front view

Humbrol oil paint. Airbrushed with 93 and 71 as a base... Then, after it dries, a wash made of 60% black and 98, diluted with white spirit, is applied to the entire surface...

Scale model of the 155 AUF1 GCT self-propelled gun under construction, side view of the chassis

Black paint is sprayed all over the inside of the tank and on the engine compartment...

Scale model of the 155 AUF1 GCT self-propelled gun, side view, with two-tone camouflage and a long barrel

A base coat of 70 and 98 is applied with a brush to the rusted areas...

Model of the 155 AUF1 GCT self-propelled gun being assembled, with the turret and long barrel already mounted

Model of the 155 AUF1 GCT self-propelled gun with clear primer, long barrel, and tracks, on a white background

Another coat of 103 sprayed as a highlight on the flat areas...

Chip/Acetone

Armored cabin of the 155 AUF1 GCT self-propelled gun model, featuring camouflage and weathered patina

Rollers and tracks from the chassis of the 155 AUF1 self-propelled gun, with a rust and mud patina

Paint chipping caused by acetone...

Model of the 155 AUF1 GCT self-propelled gun, side view, with pink primer and weathering

Use a brush to chip away the rust and burnt areas, starting with 107 - 73 - 70 - 98 - 33 - 34...

Model of a 155 AUF1 GCT self-propelled gun, three-quarter front view, painted green and pink

Side view...

Model of a destroyed 155 AUF1 GCT self-propelled gun, with its hull torn open to reveal its internal components

The turret's roof and side walls are also painted. A dry-brush technique using various shades of gray and a dusting effect using 103 are applied to the blackened areas...

Model of a 155 AUF1 GCT self-propelled gun in sand and brown camouflage, with the gun barrel pointing to the right

Rust-colored streaks are applied in certain areas using umber and sienna...

Sandblasting

Scale model of the 155 AUF1 GCT self-propelled howitzer, front view, with weathered gun and tracks

Sand is applied to the front glacis of the tank and then painted...

155 AUF1 GCT Self-Propelled Howitzer model, three-quarter view on a diorama

Another view... Here, a 103-based filter was applied to the entire model...

"Tags"

Model of a 155 AUF1 GCT self-propelled artillery piece in sand-colored paint scheme with markings on the barrel

Drawing "tags" using pastels and colored pencils...

Model of the 155 AUF1 GCT self-propelled artillery piece in sand-colored livery, featuring a long barrel and markings

Model of a 155 AUF1 GCT self-propelled gun covered in graffiti, side view, weathered sand color scheme

Model of a 155 AUF1 GCT self-propelled artillery piece in sand-colored paint scheme with markings, long barrel pointed forward

Final coat of paint

Scale model of the 155 AUF1 GCT self-propelled artillery piece in weathered sand camouflage, three-quarter front view

Model of the 155 AUF1 GCT self-propelled gun in sand-colored paint scheme, side view with markings

Apply a thin layer of 121 on the raised areas of the flat sections and on the "tags" to soften them and add a dusty finish...

Scale model of the 155 AUF1 GCT self-propelled artillery gun with a sand-colored finish and tracks, shown in a three-quarter view

The painting of the vehicles is complete...

Scale model of the 155 AUF1 GCT self-propelled howitzer, viewed from the rear three-quarter angle, showing the turret and long barrel

... They're ready to be incorporated into the set...

The Setting

Diorama featuring two 155 AUF1 GCT self-propelled howitzer models in a desert setting with a figure

The base is moisture-resistant, primed plywood that will be covered with a mixture of drywall adhesive, various types of sand and small pebbles, as well as metal and plastic debris, etc.

Two scale models of 155 AUF1 GCT self-propelled howitzers on a diorama of cracked, sandy terrain with tufts of grass

Roots and moss will be used to simulate a branch and tufts of grass...

Two scale models of 155 AUF1 GCT self-propelled howitzers and a figure of an armed soldier on a desert diorama

A model will help convey the scale and enormous size of these pieces...

Two sand-colored 155 AUF1 GCT self-propelled howitzer models with a figure on a desert diorama

Normally, we avoid placing models parallel to the edge of the diorama. Here, however, the effect is intentional, since the real vehicles are lined up in rows of dozens in the desert, packed closely together...

Diorama featuring two 155 AUF1 GCT self-propelled howitzer models on muddy terrain with a figure

Painting the set. Here, a kind of dried, brown mud...

Diorama featuring two 155 AUF1 GCT self-propelled howitzer models on rugged terrain with a figure

Painting the details and finishing touches. All that's left is the trim...

Painting of rusted 155 AUF1 GCT self-propelled guns abandoned in a desert under a cloudy skyCreating the background. It is painted in acrylic based on period photographs...

Desert diorama featuring the 155 AUF1 GCT self-propelled howitzer, with a figure and a painted backdrop

Photomontage of 155 AUF1 GCT self-propelled howitzers lined up in the desert, with a soldier in the foreground