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Approach Engineering AH-1F COBRA 600 Manual

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Download this manual See also: Assembly Instructions and User's Manual
A H - 1 F C O B R A 6 0 0
APPROACH ENGINEERING
WWW.APPROACHENGINEERING.COM
PROUDLY MADE IN THE USA
AP101

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Summary of Contents for Approach Engineering AH-1F COBRA 600

  • Page 1 A H - 1 F C O B R A 6 0 0 APPROACH ENGINEERING WWW.APPROACHENGINEERING.COM PROUDLY MADE IN THE USA AP101...
  • Page 2 If a step or photo appears unclear to you inspect the CD for additional photos with different views to aid in assembly If you have any questions, comments, or improvements please call or write to: Approach Engineering LLC Ridgecrest, CA. 93555 3.

  • Page 3: Fuselage Assembly

    APPROACH ENGINEERING 6.0 FUSELAGE ASSEMBLY AH-1F 60 MECHANICS Assemble the side frames, (S-1, S-2, S-3, S-4) over a piece Place the completed assemblies of the fuselage side frames of wax paper. Refer to the full size plans and the included pic- and lay them out to build a right and left half.
  • Page 4 APPROACH ENGINEERING 6.0 FUSELAGE ASSEMBLY AH-1F 60 MECHANICS Punch out the 1/8” Light ply former F-2. Glue it behind F- Turn the fuselage assembly over. Using epoxy glue the 1 so that it is flush with the canopy edge. 3/4” square hardwood landing gear blocks into the notches of the fuselage doublers.

  • Page 5: Vertical Fin Assembly

    APPROACH ENGINEERING 7.0 VERTICAL FIN ASSEMBLY AH-1F 60 MECHANICS Punch out the two 1/8” lite ply vertical fin supports and two Glue the vertical fin assembly into the tail rotor frame base tail rotor tube supports (TSR) and one trailing edge former (TE- (TFB).
  • Page 6 APPROACH ENGINEERING 7.0 VERTICAL FIN ASSEMBLY AH-1F 60 MECHANICS Trial fit the leading edge supports (TSF) to ensure proper Slide the tail rotor pushrod outer housing through the holes fit and contact with the tail rotor tube. Using epoxy, glue the...
  • Page 7 APPROACH ENGINEERING 7.0 VERTICAL FIN ASSEMBLY AH-1F 60 MECHANICS 7.13 7.14 Sand the tail filler block middle (FBM) at a angle and Glue the tapered filler block into position when properly trial fit to the remaining gap in the tail boom end. The block fitted in place.
  • Page 8 Assemble the servo mounting rails by punching out the Slide the assembly just behind F-4 between the fuselage two 1/8” light ply supports labeled Approach Engineering. Pull doublers and sitting on top of the 3/4” triangle stock along the out the two 1/4” x 1/2” spruce servo rails and slide into place.
  • Page 9 APPROACH ENGINEERING 8.0 NOSE AND TSU (TELESCOPING AH-1F 60 MECHANICS SIGHT UNIT) ASSEMBLY Sand the face of the fuselage assembly flush with F-1. To aid in sanding draw lines on the lower surface and the Glue on the two TSU back plates (TSU-B) together. Position fuselage side ¾”...

  • Page 10: Canopy Assembly

    APPROACH ENGINEERING 9.0 CANOPY ASSEMBLY AH-1F 60 MECHANICS Punch out the 3/32” balsa canopy sides and the 1/8” lite Starting at the base, glue only 1” up on both sides of C-1, ply canopy guide teeth (CGT). Lay out the parts to build a right C-2 and C-3 to the fuselage side and guide teeth.
  • Page 11 APPROACH ENGINEERING 10.0 ENGINE AND TRANSMISSION AH-1F 60 MECHANICS BAY ASSEMBLY 10.1 10.2 Punch out the 3/32” transmission sides and the 1/8” lite Cut and glue 2” long by 1” triangle stock to the upper ply transmission guide teeth (TGT). Making sure to build a left...
  • Page 12 APPROACH ENGINEERING 10.0 ENGINE AND TRANSMISSION AH-1F 60 MECHANICS BAY ASSEMBLY 10.7 10.8 Cross sheet the remainder of the transmission top with Making sure to build a left and a right engine intake posi- 3/32” balsa. There are 3/32” x 6” x 12” sheets included for the tion the ¼”...
  • Page 13 APPROACH ENGINEERING 10.0 ENGINE AND TRANSMISSION AH-1F 60 MECHANICS BAY ASSEMBLY 10.13 10.14 Flip the assembly over and apply the same angled sur- Sand a rounded profile along the lower edge only of the face on the inside back edge of the supplemental intake.
  • Page 14 APPROACH ENGINEERING 10.0 ENGINE AND TRANSMISSION AH-1F 60 MECHANICS BAY ASSEMBLY 10.19 10.20 Keeping the transmission assembly. Punch out the 1/8” Apply the doghouse template to the top of the transmis- light ply exhaust mounts, EXM, and exhaust former E-3. Using sion by putting the tip of the template 3-1/2”...
  • Page 15 APPROACH ENGINEERING 10.0 ENGINE AND TRANSMISSION AH-1F 60 MECHANICS BAY ASSEMBLY 10.25 10.26 Cut out the bottom edge of the vacuum formed dog- Place the trimmed doghouse on the transmission assem- house to match the profile of the upper surface of the transmis- bly and trace the outside contour onto the transmission.

  • Page 16: Wing Assembly

    APPROACH ENGINEERING 11.0 WING ASSEMBLY AH-1F 60 MECHANICS 11.1 11.2 Punch out the 1/8” lite ply wing spars and the 3/32” wing Using the laser cut 3/32” lower wing sheeting, sand a ribs W-1, W-2, and W-3. Assemble them according to the plans small angle to the leading edge to match the angle of the leading and glue the ribs to the wing spar.
  • Page 17 APPROACH ENGINEERING 11.0 WING ASSEMBLY AH-1F 60 MECHANICS 11.7 NOTES: From the inside apply ¼” triangle stock to the edges of the wing spar for increased strength. Note: picture shows wing after a painted state for desired finishing technique. CONTINUE TO NEXT SECTION.
  • Page 18 APPROACH ENGINEERING 12.0 ROCKET LAUNCHER ASSEMBLY AH-1F 60 MECHANICS 12.0 12.1 Rocket launchers can be assembled with 7 or 19 missile Punch out the 1/8” lite ply rocket launcher faces. Glue in tubes … We supply both Ply Ends for these so make sure to each face flush with the rocket launcher tubes.
  • Page 19 APPROACH ENGINEERING 13.0 TOW LAUNCHER ASSEMBLY AH-1F 60 MECHANICS 13.0 13.1 Punch out four ¼” balsa wing tips (TLS), and two ¼” Sand the wing tip assembly to the desired finished shape. balsa wing tips centers (TLC). Glue one balsa wing tip center on each side of the wing tip center.
  • Page 20 APPROACH ENGINEERING 14.0 20mm CANNON ASSEMBLY AH-1F 60 MECHANICS 14.1 14.2 The 20mm gun can be made to rotate with the use of a Using 1/16” balsa, cross sheet the gun supports. Run the servo. Parts are included for this option. Punch out the 1/8” lite grain perpendicular to the gun side supports.
  • Page 21 APPROACH ENGINEERING 14.0 20mm CANNON ASSEMBLY AH-1F 60 MECHANICS 14.7 14.8 Punch out the gun mount support block, GSB. Align the Glue the 5/16” by 1.5” wood dowel into the top of the hole with the hole created from the balsa gun chin blocks and gun assembly.
  • Page 22 APPROACH ENGINEERING 14.0 VERTICAL TAIL ASSEMBLY AH-1F 60 MECHANICS 14.11 14.12 Glue the 1/8” lite ply vertical fin trailing edge former Trial fit the transmission assembly on the fuselage. TE-1 into the slots provided. You will note that the tabs on E-2 extend down the side of the fuselage sides to keep the surfaces matched.
  • Page 23 APPROACH ENGINEERING 14.0 TAIL BOOM, EXHAUST ASSEMBLY AH-1F 60 MECHANICS 14.17 14.18 Sand the ¾” balsa triangle stock leading edge to the Mark lines ¾” from the tail boom corners on the sides, desired final shape. top, and bottom to aid in sanding. Using various grits of sand- paper round the tail boom and lower fuselage corners to a rounded shape.
  • Page 24 APPROACH ENGINEERING 14.0 CHIN BLOCK ASSEMBLY AH-1F 60 MECHANICS 14.23 14.24 Glue the exhaust support from the inside and let dry. Paint the Cardstock Tube flat black, when dry slip the Use tape to keep this assembly square. tube onto ES-1 to check fit. After final paint and finish of heli- copter glue in place.
  • Page 25 APPROACH ENGINEERING 14.0 HATCH COVER ASSEMBLY AH-1F 60 MECHANICS 14.29 14.30 Round off the edges and sand smooth. The Magnets go Sand the edges smooth. in CB-4 and the 1/4” ply bottom. This info is supplied to assist in building a hatch if needed. This is optional as removing the canopy is just as easy to inspect the batteries.
  • Page 26 APPROACH ENGINEERING 15.0 TAIL COVER ASSEMBLY AH-1F 60 MECHANICS 15.1 15.2 Punch out the two 1/8” ply vertical fin leading edges, Punch out the upper leading edge former, VF-1, from TSF, and glue to the 1/16” balsa vertical fin side leading sheet- 1/8”...
  • Page 27 APPROACH ENGINEERING 15.0 TAIL COVER, LANDING GEAR AH-1F 60 MECHANICS ASSEMBLY 15.7 15.8 Punch out the two 1/16” balsa vertical fin trailing edge Glue the opposite sheeting over the formers. The trailing sheeting, VFS-T, and the trailing edge formers VF-2 and VF-3 edge of the sheeting will overlap the trailing edge of the previ- from 1/4th Balsa.

  • Page 28: Installing The Mechanics

    Thank you for purchasing one of our fine balsa scale simple process of setting your mechanics into the fuselage. Approach Engineering helicopter kits. We are always Block it up to the proper height using hardwood, rails (Supplied upgrading our helicopters to make them easier and in the kit) then glue in place and frame with scrap Triangle more enjoyable to build.