Titan model kits Kc-30 mrtt User manual

1:72 KC-30 MRTT

Assembly Instructions

Thank you for purchasing a Titan Model Kit. These kits are intended for experienced

intermediate to advanced adult scale modelers. Kits will require you to measure, mark, cut,

scratch-build, and modify various pieces. Builders are cautioned to review the assembly

instructions in their entirety prior to beginning any work. These instructions are provided only as

a guide. You may choose to alter the sequence of steps, change techniques, or omit steps at

your discretion. You will find the following tools useful in your build: hobby knife, dial calipers,

ruler or measuring tape, drill with various bit sizes, rotary tool (Dremel or equivalent), sand

paper of various grit, sanding block, styrene model cement (solvent based), and cyanoacrylate

glue (Superglue or equivalent).

Assembly instructions may contain images that do not correspond precisely to the physical kit

parts. Physical parts are in a state of continuous improvement and you may have earlier or later

versions of an individual part or kit than what is shown in the assembly instructions. The images

are intended to provide you with general orientation only. Additionally some images are general

in nature and are used to illustrate concepts which are common to multiple kits.

Screenshots of CAD models are used for concept illustration only and the images may contain

elements that may or may not be present in the physical parts. For instance, cabin window and

door outlines are shown in these images to help in visual orientation and are not present in the

physical parts. Screenshots may omit adjacent parts for clarity.

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Table of Contents

I. Parts Preparation

A. Vacform Parts

1. Remove parts from sheet

2. Remove stock thickness

3. Thin trailing edges

4. Drill out engine and flap track attachments

5. Cut out wing & tail passthroughs

6. Cut out NACA vent holes

7. Install 90° angle styrene reinforcement strips

8. OPTION: Landing Gear Cutouts

B. Resin Parts

1. Remove support columns

2. Sand support column attach points

II. Assembly

A. General

B. Instructions

1. OPTION: Install wheel wells

2. Install APU

3. Assemble horizontal tail

4. Assemble wing top and bottom

5. OPTION: Install clear cockpit windows

6. Assemble fuselage halves

7. Join the wings

8. Install flap track fairings

9. Install wing roots and trailing edge fillets

10. Install engines

11. OPTION: Assemble and install landing gear

12. Install antennas & resin detail parts

III. References

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I. PARTS PREPARATION

I.A VACFORM PARTS

I.A.1. Remove parts from sheet:

Carefully remove the parts by cutting along the silhouette of the part with a sharp utility

knife. You may find it helpful to mark the cut lines with pencil prior to cutting. Always

cut from the top of the parts, never from the bottom. Multiple shallow passes will always

yield a better result than trying to cut through on a single pass.

.

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I.A.2. Remove stock thickness:

Once parts are cut away from their sheet they will still need to have the sheet thickness

removed from them. As can be seen from the below photo, the .090” sheet thickness

between the red lines should be removed. Coarse sandpaper in a sanding block is

recommended to remove this material. Work slowly, checking progress often.

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I.A.3. Thin trailing edges:

As delivered, the trailing edges of the wings and tail parts are the thickness of the

plastic sheet used to produce them. If left alone, assembling raw parts will result in a

trailing edge that is too thick for scale. Using 220 grit sandpaper, thin all trailing edges

from the .090” material thickness to approximately .010”. Work slowly, checking

thickness and consistency as you go. This will result in trailing edges that are more

“to-scale”

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I.A.4. Drill out engine and flap track attachments:

Engine and flap track fairing attachment points should be drilled out with a ⅛” (3mm)

brad-point drill bit.

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Cobham 905e wing refueling pods should be mounted in the below position. Measure

and mark the wings and drill out ⅛” mounting holes as shown. Do not install the pods

until after step II.B.8.

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I.A.5. Cut out wing & tail passthroughs

Remove plastic to allow for the wing and tail assemblies to pass through the fuselage

halves as shown. The attached templates can be scaled and used to help you know

exactly where to cut.

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Wing Passthrough Template

Scale this page with a copy machine to ensure that the block below is exactly 1

inch wide. Use as template to remove material for wing passthrough.

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Tailplane Passthrough Template

Scale this page with a copy machine to ensure that the block below is exactly 1

inch wide. Use as a template to remove material for tailplane passthrough.

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I.A.6. Cut out NACA vent holes

3D-printed NACA vents are provided for the ventral fuselage. Measure, mark,

and cut holes in the fuselage halves to allow them to be mounted as shown. Units

shown in the diagram are in inches.

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I.A.7. Install 90° angle styrene reinforcement strips

¼” styrene angle strips are provided to add rigidity to the fuselage and to

increase the area of the fuselage joint for glue-up. Install as shown below. Install on

BOTH fuselage halves. You may wish to add additional bracing or joint reinforcement

using scrap styrene at your discretion.

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I.A.7. OPTION: Landing Gear Cutouts:

CORRECTION--The main landing gear door panel lines as molded on the wings

are incorrect. Correct cutting lines are shown in red on the diagram below. You

can use the 3D printed main wheel wells to help mark where to cut the holes.

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Measurements for Nose Gear Door Cutout

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I.B RESIN PARTS PREPARATION

I.B.1. Remove support columns:

Some 3D-printed parts (wheels especially) may come with printer supports still

attached. Carefully remove supports with a utility knife or sprue cutter and gently sand

attachment point dimples away.

I.B.2. Sand support column attach points

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II. ASSEMBLY

II.A. GENERAL

Vacform parts are made from high impact polystyrene (HIPS) plastic. Vacform parts

should be glued to one another using solvent based ‘glue’. 3D printed parts should be

glued to one another and to vacformed parts using cyanoacrylate (Superglue or

equivalent) or 2-part epoxy.

II.B.1. OPTION: Install wheel wells:

Wheel wells should be installed prior to assembling fuselage halves and wings.

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The strongest joint is a chemically welded styrene to styrene joint–one that

is glued with solvent glue. For extremely strong construction use scrap

styrene to ‘wrap’ your wheel wells. This can be done before installing

them, or after and can be done for both the main wheel wells and the nose

wheel well. The goal is to make a styrene box to contain the resin part

and take stress off of the resin-styrene joint.

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II.B.2. Install APU exhaust

The APU exhaust should be installed prior to cementing the fuselage halves

together. You will need to thin the vacformed part using sandpaper or a rotary

tool with grinding bit in order to accept the resin APU.

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TITAN MODEL KITS KC-30 MRTT User manual

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