下载
http://www.geocities.com/CapeCana...05/ZCESSNA.pdf以下说明有些版本 是比此飞机详尽的它版 但小弟认为可看看外国人陈述的细心度 来学习
Instructions for the assembly of the Cessna 172.
Parts
Study the model and identify the following parts:
1. Top and bottom of the wing.
2. Spar for vertical stabilizer.
3. Spar for horizontal stabilizer.
4. Spar for wing.
5. Left and right vertical stabilizers.
6. Engine chin air scoop.
7. Propeller.
8. Spinner.
9. Landing-gear strut.
10. Left and right sides of nose gear.
11. Two Left and right sides of the main gear wheels and wheel-pants.
12. Left and right sides of vertical stabilizer.
13. Left and right wing struts.
14. Fuselage.
15. Top of fuselage.
16. 21 wheel parts.
Float version:
1. Two left float sides.
2. Two right float sides.
3. Two float tops.
4. Two float bottoms behind the step.
5. Float strut assembly.
6. Two float spreader bars.
Tools
To do any job you need a good set of tools. I have found the following to be very handy when constructing a quality of card models:
1. A #10 scalpel or X-acto Knife.
2. Arleen’s Tacky glue or white glue.
3. A dull pin knife or machinist scribe for scribing fold lines.
4. Needle nosed tweezers 3 to 4 inches long, I have several sizes from three inches to twelve inches.
5. Acco mini binder clips or several some small similar clamping devices.
6. Emory boards, for light sanding & a flat glue surface.
7. Light weight wire, for adding strength to parts.
8. One inch straight pins.
9. A six inch ruler or straight edge.
10. Wire cutters.
11. Long-nosed pliers.
12. Wooden pencil.
13. Several wooden dowels with smoothly rounded ends for shaping parts from the inside of the model.
Scribing fold lines
Use a scribe of some type to mark all fold lines. This will make folding easier. Additionally it’s easier to scribe the fold lines before you cut out the model, and it is preferable to use a straight edge as a guide. Identify and scribe the following fold lines:
1. The wing leading edge glue tabs.
2. The four lines on the vertical stabilizer spar.
3. The four lines across the wing and horizontal stabilizer spars.
4. The two lines separating the front from the backsides of the propeller.
5. The three lines that separate the black inside part of the engine air scoop from the outside.
6. The two lines that form the glue tabs on the left and right sides of the engine air scoop.
7. The two lines that form the glue tabs on the aft part of the engine air scoop that forms the glue tabs.
8. The four lines that separate the colored glue tabs from the body of the horizontal stabilizer.
9. The line separating the top from the bottom of the horizontal stabilizer.
10. The centerline separating the top and bottom of the wing spars, and the glue tabs on each end.
11. The line that separates the two glue tabs used to join the left side of the vertical stabilizer from the fuselage from the body of the vertical stabilizer.
12. The line along the leading edge of the left side of the vertical stabilizer separates the leading edge from the body of the stabilizer.
13. The line that separates the two glue tabs used to join the right side of the vertical stabilizer from the fuselage from the body of the vertical stabilizer.
14. The line along the leading edge of the right side of the vertical stabilizer separates the leading edge from the body of the stabilizer.
15. On the top of the fuselage scribe a line from side to side at the aft side of the rear windows, the forward side of the rear windows, the aft side of the front windshield, the forward side of the front windshield.
16. Scribe the lines separating the six glue tabs on the left and then the right sides of the top of the fuselage.
17. Scribe the line around the nosepiece attached to the top of the fuselage that separates the 14 glue tabs from the body of the nose.
18. On the aft end of the bottom of the fuselage scribe the two lines separating the two glue tabs from the body of the bottom of the fuselage.
19. Starting at the front of the bottom of the fuselage scribe a line from the left to the right side just in front of the air scoop, just past the front of the air scoop, at the rear of the air scoop and between the two lines used to locate the landing gear struts.
20. Scribe lines separating the main body of the bottom of the fuselage from the six glue tabs used to join the bottom of the fuselage to the sides.
Land version:
1. The lines around the wheel pants for the front and main gear that forms the top and bottom of the pants.
2. Scribe a line separating the three forward glue tabs from the body of the landing gear strut.
Float version:
1. Scribe a line separating the glue tabs from the body of the float support struts.
2. Scribe the fold line and the lines separating the glue tabs on the float spreader bars.
3. Scribe a line separating the seven glue tabs used to join the left side to the top of the float for the left and then the right float.
4. Scribe a line separating the seven glue tabs used to join the right side to the top of the float for the left and then the right float.
5. Scribe a line separating the six glue tabs used to join the left and right sides of the float for the left and then the right float.
6. Scribe a line separating the glue tabs on each side of the aft bottom of the float, and the two tabs used to join the float aft bottom to the step.
Construction
After cutting out each part color the edges with a watercolor marker or similar marking device. If you cannot match the color of the model black seams to work well.
1. Cut out the wing spar with an X-acto knife or a scaphel. Fold the wing spar and glue the double side together. Note that there is a slight dihedral.
2. Cut, Fold, and glue the vertical and horizontal stabilizer spars.
3. Cut out the wing and fold the two leading edge glue tabs over. Glue the leading edge of the bottom of the wing to the glue tab from the top.
4. Spread a thin coat of glue on the top and bottom of the spar.
5. Center the wing spar from left to right about one third of the way back from the leading edge of the wing. Make sure that the top of the spar it up to form positive dihedral.
6. Glue the trailing edge, and tips of the wing together. If possible clamp the trailing edge together. A clamp can be made using two emery boards and paper clamps.
7. Cut out the integrated bottom and sides of the fuselage. Make sure you cut out the whole in the left and right sides for the horizontal stabilizer spar, the line separating the sides of the fuselage from the glue tab at the aft most end of the fuselage, the line separating the sides of the fuselage from the glue tabs from the cargo door to the entry doors.
8. Roll the fuselage around a pencil for to aft giving it a rounded shape.
9. Fold the bottom glue tabs over and lightly coat them with glue.
10. Press the glue tabs into place on the inside of the fuselage preferably using a pair of tweezers.
11. After the glue sets-up use a pare of tweezers or a blunt stick to round the edges formed between the sides and the bottom of the fuselage.
12. Glue the aft bottom glue tabs to the inside rear sides of the fuselage, and the sides together at the rear.
13. Start at the rear of the fuselage working toward the front cut out and folds over the glue tabs on the top of the fuselage. Fold the fuselage top at the rear windows, windshield, and nose to fit the shape of the fuselage sides.
14. Lightly coat the glue tabs with glue and join the top with the sides starting at the rear of the fuselage. As each set of glue tabs are pressed into position try to form each section into a rounded shape.
15. Glue a penny in the bottom front of the fuselage before fitting the nose into place in the fuselage; matching up the two alignment marks.
16. Slide the horizontal stabilizer spar through the fuselage and center it with the dihedral up. Sight down the fuselage from the front and make any needed adjustments to the spar, and that the dihedral is in fact up.
17. Lightly coat the top and bottom of the spar with glue.
18. Fold the horizontal stabilizers in half and bent the glue tabs out.
19. Lightly coat the trailing edges, tips, and glue tabs of the stabilizer with glue.
20. Fold the horizontal stabilizers around the spar and press into place against the fuselage.
21. Make sure that the line separating the elevator from the horizontal stabilizers are in line with the vertical line on the side of the fuselage, and that they are evenly placed. Sight from the front to make sure that the stabilizers are straight and evenly placed.
22. Fold the glue tabs and leading edges of the vertical stabilizer over.
23. Cut out the vertical stabilizer making sure the small slits in the leading edge are cut at the juncture of the forward fairing and the body of the vertical stabilizer.
24. Lightly coat the vertical stabilizer spar with glue of each side.
25. Lightly coat the edges of the vertical stabilizer, and the glue tabs with glue.
26. Press the two sides of the vertical stabilizer together locating the spar just forward of the line separating the rudder from the body of the stabilizer. Use a pencil or blunt instrument to press the leading edges over each other forming the leading edge of the stabilizer.
27. Lightly coat the glue tabs on the vertical stabilizer used to join it to the fuselage with glue, and press it into place where marked on the top of the fuselage. Note the vertical line on each side of the fuselage used to align the elevators on the horizontal stabilizers is also used to align the rudder of the vertical stabilizer.
28. Glue the wing into place on the top of the cabin aligning the leading edge with the front of the cabin. Some adjustment may be required with the thickness of the wing spar. It may be necessary to flatten the spar through the center section where it joins with the top of the fuselage.
29. Cut out the wing struts; fold, and glue them together. Note using a toothpick or piece of wire in the center should strengthen the wing struts.
30. Glue the struts into place where marked on the fuselage and wing. Make sure that you shape the wing to have a slight dihedral.
31. Place the airplane upside down on a ruler or something approximately one eighth of an inch or 0.3 CM thick. Place a light weight on each wing tip to form the desired dihedral.
32. Cut out the propeller and glue the front to the backside over a straight pin wrapping the blue-gray tab around the propeller. Cut the head off of the straight pin. Repeat the process for the other blade of the propeller.
33. Cut out the spinner black ovals where the propeller blade goes through the spinner. Note there is a cut from the oval to the back edge of the spinner.
34. Cut out the remainder of the spinner. Form the spinner over the sharp end of a pencil. Fold open the back edge of the spinner oval and place the propeller in to the spinner.
35. Fold the back edge back across the propeller and form the propeller into its proper shape place glue on the glue tab, and the fill the circle formed by the back of the spinner and the propeller. Glue the propeller into place on the front of the model.
36. Cut out the Engine chin air scoop. Make sure you cut the front edge of the two white glue tabs on each side of the scoop.
37. Fold and glue the black leading edges over forming the black inside of the air scoop.
38. Roll the scoop around a round toothpick or around the end of the tweezers to shape it. Fold the two aft glue tabs over each other forming a flat surface. Glue the forward glue tabs together forming a flat surface with the side glue tabs tucked inside.
39. Glue to the bottom of the fuselage over the drawing of an air scoop.
Land version:
1. Glue seven wheel parts together forming a sandwich of wheels between a left and right outer wheel and pants. Use a blunt instrument to fold over the top and bottom edges of the pants to afford some thickness. Repeat the process for the other main gear wheel. For the front wheel the process is the same except for spreading the glue tabs used to join the wheels to the fuselage. It is recommended that a piece of wire or a straight pin is glued inside the front wheel sandwich for strength. Fold the aft (short side) glue tabs of the wheel struts over and glue to the main body of the strut. Cut a piece of wire and form it to fit the curvature of the wheel strut. Fold and glue the forward glue tab over the aft glue tab forming the wheel strut. Glue the wheel strut to the bottom of the fuselage where marked so that it angles back toward the rear of the aircraft.
2. Glue the nose gear on top of the aft portion of the air scoop.
3. Glue the main landing gear wheel pants to the maim landing gear struts.
This will complete the land version of the model
Float Version:
1. For the float version complete two landing gear struts. Glue the second one forward of the first just behind the engine chin air scoop where the wing struts join the fuselage, angled forward.
2. Cut out the right side of a float and fold over the glue tabs
3. Cut out the left side of a float. Lightly coat the glue tabs with glue and join the two sides.
4. Cut out the float aft bottom and, fold over the glue tabs and glue into place forming the remainder of the bottom, and the step.
5. Cut out the top of a float and roll it over a pencil to form the domed float top. Lightly coat the glue tabs on the float sides and the two side-pieces forming the float rudder with glue. Place the float top into place. Take care to keep the float sides spread apart too properly join with the top so that the edges of the top and sides fit together. Press the two rudder tabs together completing the float.
6. Repeat the above process for the other float.
7. Glue the two float spreader bars together around a piece of thin wire for strength.
8. Glue the floats to the landing gear struts, and the float spreader bars. Take care that they are aligned with the fuselage, and angled so the aircraft site level. Some minor adjustments to the landing gear struts may be necessary to get the desired degree of level.
This will complete the sea version of the aircraft.
