en:authors:omachi-masami:paper-solid:1955-03
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| en:authors:omachi-masami:paper-solid:1955-03 [2025/11/24 20:34] – created admin | en:authors:omachi-masami:paper-solid:1955-03 [2025/11/25 06:37] (current) – admin | ||
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| In last month’s issue, we explained the construction of the main wing—including the retractable landing gear—and the engine section. | In last month’s issue, we explained the construction of the main wing—including the retractable landing gear—and the engine section. | ||
| This month, we will build the fuselage and tail unit, assemble the airframe, and complete the finish.\\ | This month, we will build the fuselage and tail unit, assemble the airframe, and complete the finish.\\ | ||
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| - | (A) For aircraft such as the Ki-44, whose fuselage—aside from the engine section—is mostly bounded by straight lines, I divided the fuselage into three parts. | + | (**A**) For aircraft such as the Ki-44, whose fuselage—aside from the engine section—is mostly bounded by straight lines, I divided the fuselage into three parts. |
| However, for airframes with strong curvature like the *Raiden*, division into seven to ten sections is required. | However, for airframes with strong curvature like the *Raiden*, division into seven to ten sections is required. | ||
| The numbers in (A) indicate the order of fuselage attachment: | The numbers in (A) indicate the order of fuselage attachment: | ||
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| - | (B) This step illustrates how to join the fuselage sections. | + | (**B**) This step illustrates how to join the fuselage sections. |
| If the paper thickness is adequate, apply cement directly to each cut surface and use several clothespins—narrowed at the tips—to hold the joints as shown. | If the paper thickness is adequate, apply cement directly to each cut surface and use several clothespins—narrowed at the tips—to hold the joints as shown. | ||
| This method is extremely convenient.\\ | This method is extremely convenient.\\ | ||
| {{: | {{: | ||
| - | (C) This diagram shows fuselage section (5), which contains the tail-wheel retraction mechanism. | + | (**C**) This diagram shows fuselage section (5), which contains the tail-wheel retraction mechanism. |
| At 1/50 scale, even grasping the tail-wheel with fingertips can be difficult. | At 1/50 scale, even grasping the tail-wheel with fingertips can be difficult. | ||
| However, by drilling a hole into an old triangular ruler and pinning the U-shaped metal fitting (D), then shaping it with a file, the work becomes much easier. | However, by drilling a hole into an old triangular ruler and pinning the U-shaped metal fitting (D), then shaping it with a file, the work becomes much easier. | ||
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| - | (D) Next, construct the tail surfaces. | + | (**D**) Next, construct the tail surfaces. |
| Because the structure is identical to last month’s aileron method, the explanation is omitted here.\\ | Because the structure is identical to last month’s aileron method, the explanation is omitted here.\\ | ||
| {{: | {{: | ||
| - | (E) Assembly and installation of the vertical tail are shown.\\ | + | (**E**) Assembly and installation of the vertical tail are shown.\\ |
| {{: | {{: | ||
| - | (F) To install the horizontal tailplane, pass wire through the appropriate location and cement the tailplane in place.\\ | + | (**F**) To install the horizontal tailplane, pass wire through the appropriate location and cement the tailplane in place.\\ |
| {{: | {{: | ||
| - | (G) Fillets are notoriously troublesome in wooden solid models, but in paper construction, | + | (**G**) Fillets are notoriously troublesome in wooden solid models, but in paper construction, |
| First, attach the lower triangular fillet according to the drawing, then divide paper of cigarette-packet thickness into three or four strips and install them as shown. | First, attach the lower triangular fillet according to the drawing, then divide paper of cigarette-packet thickness into three or four strips and install them as shown. | ||
| With practice, the method becomes extremely easy and can be applied to any size. | With practice, the method becomes extremely easy and can be applied to any size. | ||
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| - | (H) After the putty dries, form the exhaust pipes by rolling tinplate into tubes. | + | (**H**) After the putty dries, form the exhaust pipes by rolling tinplate into tubes. |
| Cut a slot at position (A) and secure with cement. | Cut a slot at position (A) and secure with cement. | ||
| Then apply backing paper at (G) and attach the engine section. | Then apply backing paper at (G) and attach the engine section. | ||
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| {{: | {{: | ||
| - | (J) Propellers carved from bamboo with pitch are difficult for beginners. | + | (**J**) Propellers carved from bamboo with pitch are difficult for beginners. |
| Here, we describe a method using tinplate. | Here, we describe a method using tinplate. | ||
| Cut the blades from tin; taper the roots so they insert into the spinner. | Cut the blades from tin; taper the roots so they insert into the spinner. | ||
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| For the instrument panel, paint paper green and draw dials in white ink.\\ | For the instrument panel, paint paper green and draw dials in white ink.\\ | ||
| - | (K) Painting methods have been published previously and are similar to wooden solid models. | + | (**K**) Painting methods have been published previously and are similar to wooden solid models. |
| In brief: | In brief: | ||
| • After applying putty, sand thoroughly. | • After applying putty, sand thoroughly. | ||
| Line 110: | Line 110: | ||
| For reference, the lacquer-painting process chart published in the *Saiunkai Bulletin* is included below.\\ | For reference, the lacquer-painting process chart published in the *Saiunkai Bulletin* is included below.\\ | ||
| + | |||
| + | ^ Step ^ Process ^ Materials & Mixing Ratio ^ Drying Time ^ Notes ^ | ||
| + | | 1 | Surface sanding | Sandpaper (coarse to medium: # | ||
| + | | 2 | First surfacer application | Wood surfacer 5 : thinner 5 | 5 | | | ||
| + | | 3 | Putty application | Lacquer putty | 3 | | | ||
| + | | 4 | Wet sanding | Wet sandpaper (#320) | 5 | Return to Step 3 if necessary | | ||
| + | | 5 | Second surfacer application | Wood surfacer 5 : thinner 5 | 5 | | | ||
| + | | 6 | Wet sanding | Wet sandpaper (#400) | 5 | | | ||
| + | | 7 | Lacquer coating | Lacquer 5 : thinner 5 | 3 | For silver finish, use clear lacquer silver | | ||
| + | | 8 | Lacquer coating | Same as above | | | | ||
| + | | 9 | Wet sanding | Wet sandpaper (#420) | 10 | | | ||
| + | | 10 | Lacquer coating | Lacquer 5 : thinner 5 | 5 | | | ||
| + | | 11 | Detail painting | Lacquer (various colors) | 5 | Canopy frames, markings, etc. | | ||
| + | | 12 | Clear lacquer coating | Clear lacquer 5 : thinner 5 | 5 | | | ||
| + | | 13 | Clear lacquer coating | Same as above | 5 | | | ||
| + | | 14 | Final finish | | | | | ||
| + | \\ | ||
| {{: | {{: | ||
| - | (L) After painting, perform the equivalent of panel-line scribing used in wooden solids. | + | (**L**) After painting, perform the equivalent of panel-line scribing used in wooden solids. |
| This step is troublesome, | This step is troublesome, | ||
| Once complete, install the antenna, guns, and other external fittings as shown in (L). | Once complete, install the antenna, guns, and other external fittings as shown in (L). | ||
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| Even small hints can be valuable; I sincerely hope that solid-model enthusiasts submit ideas to this magazine, and hereby conclude this installment. | Even small hints can be valuable; I sincerely hope that solid-model enthusiasts submit ideas to this magazine, and hereby conclude this installment. | ||
| + | |||
| + | <WRAP center small> | ||
| + | [[en: | ||
| + | [[en: | ||
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| + | </ | ||
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