Introduction
This instruction manual provides detailed guidance for the assembly, painting, and care of your Tamiya US Navy PBR31 Mk.II "Pibber" model kit. This 1/35 scale model accurately replicates the Vietnam-era Patrol Boat, River, featuring intricate details and movable components. Please read all instructions carefully before beginning assembly.
Safety Information
- Small Parts Warning: This kit contains small parts which may pose a choking hazard. Keep out of reach of small children.
- Recommended Age: This model kit is recommended for ages 15 years and up due to the complexity and use of sharp tools and adhesives.
- Adhesives and Paints: Use model-specific adhesives and paints in a well-ventilated area. Follow the manufacturer's safety instructions for all chemical products.
- Sharp Tools: Exercise caution when using hobby knives, clippers, and other sharp tools.
Package Contents
Verify that all components are present before starting assembly. The kit includes:
- Plastic sprues for hull, deck, and various parts.
- Four (4) crew figures in action poses.
- Decal sheet.
- Display stand components.
- Additional accessories such as 55-gallon drums and crew's personal effects.
- Instruction booklet (this document).

Image: The kit box art, showing the assembled US Navy PBR31 Mk.II Patrol Boat River in a dynamic water scene. This image represents the complete model and its accessories.
Setup and Assembly
Before starting, ensure you have a clean, well-lit workspace. Gather necessary tools such as hobby knife, plastic cement, sandpaper, tweezers, and paints.
- Part Preparation: Carefully remove parts from the sprues using a hobby knife or clippers. Clean any mold lines or excess plastic with sandpaper or a hobby file.
- Hull Assembly: Assemble the two halves of the hull. Ensure a tight fit and use plastic cement sparingly. Allow sufficient drying time.
- Deck and Interior: Attach the main deck to the hull. Begin assembling the detailed interior framework and cockpit components as indicated in the diagrams.
- Superstructure: Construct and attach the boat's superstructure, including the canopy and radar mast.
- Weapons and Turrets: Assemble the movable turret and machine guns. Pay attention to the small parts for these assemblies.
- Deck Fittings: Attach all deck fittings such as railings, life preservers, and other small details.
- Crew Figures: Assemble the four crew figures. These can be painted separately and added later.
- Accessories: Prepare and paint the 55-gallon drums and other personal effects. These can be placed on the deck for added realism.
- Painting and Decals: Refer to the painting guide for recommended colors. Apply decals after painting and a clear gloss coat. Finish with a matte or satin clear coat.
- Display Stand: Assemble the provided display stand and place the finished model on it.

Image: A fully assembled and painted Tamiya US Navy PBR31 Mk.II model, shown on its display stand. This image highlights the detailed hull, deck, and weapon systems.
Operating (Display and Handling)
The Tamiya US Navy PBR31 Mk.II is a static display model. While some parts like turrets and machine guns are designed to be movable, it is not intended for active play or water use.
- Display: Place the model on its provided stand in a stable location, away from direct sunlight, extreme temperatures, and high humidity to prevent damage or paint fading.
- Handling: When moving the model, always lift it by the main hull structure, avoiding delicate parts like antennas, machine guns, or crew figures.
Maintenance
Proper maintenance will preserve the appearance and integrity of your model.
- Cleaning: Dust the model regularly with a soft, dry brush or a can of compressed air. Avoid using water or chemical cleaners, as these can damage paint and decals.
- Repairs: In case of accidental breakage, use plastic cement to reattach parts. For paint chips, touch up with matching model paints.
Troubleshooting
Here are solutions to common issues encountered during model assembly:
| Problem | Solution |
|---|---|
| Parts do not fit together properly. | Ensure all sprue gates are fully removed and check for any excess plastic (flash). Lightly sand mating surfaces if necessary. Verify part numbers against the instructions. |
| Paint finish is uneven or rough. | Ensure surfaces are clean and dry before painting. Apply paint in thin, even coats. Allow each coat to dry completely before applying the next. Use appropriate primer. |
| Decals do not adhere or silver. | Apply decals over a glossy surface. Use decal setting solutions to help them conform to irregular surfaces and eliminate silvering. |
| Small parts break during removal. | Use sharp, dedicated model clippers. Cut slightly away from the part and trim the remaining sprue attachment point with a hobby knife. |
Specifications
| Feature | Detail |
|---|---|
| Brand | TAMIYA |
| Model Name | US Navy PBR31 Mk.II |
| Item Model Number | TM35150 |
| Scale | 1/35 |
| Material | Plastic |
| Product Dimensions (L x W x H) | 11.02 x 3.93 x 4.46 inches (approximate assembled size) |
| Item Weight | 1.1 pounds (kit weight) |
| Number of Pieces | 1 (referring to the main kit, not individual parts) |
| Recommended Age | 15 years and up |
| Included Components | Model kit, 4 crew figures, display stand, accessories |
Warranty and Support
Tamiya products are known for their quality. Specific warranty details for this model kit are typically provided within the kit packaging or on the manufacturer's official website. For missing parts, technical assistance, or warranty claims, please contact Tamiya customer support directly through their official website or the contact information provided in the original kit documentation.
Manufacturer: TAMIYA
Website: www.tamiya.com (Please check for your regional Tamiya website)







