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Mountain Models Magpie AP, Assembly Instructions Manual, Page: 1 / 19

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Magpie AP 

Aerial Photography Airplane 

 

Magpie Specifications 

Length: 36in.  
Wingspan: 54in.   

 

Wing Area: 486in

2

  

Weight (without battery): 19 oz. 
 

Thank you for purchasing the Magpie AP. This model is an elevator/rudder setup, designed as a 

dedicated Aerial Photography plane.   It is a stable enough plane for the beginner pilot.

 

 

Sincerely, 

 

 

 

 

 

 

Mountain Models 

Doug 

Binder 

      465 

D 

Street 

[email protected]   

 

 

 

P.O. Box 762

 

Penrose, CO 81240 

www.mountainmodels.com

 

     Phone: 719.372.6727 

 Fax: 719.372.3744 

Last updated March 6, 2005

 

Summary of Contents for Magpie AP

Page 1: ...rchasing the Magpie AP This model is an elevator rudder setup designed as a dedicated Aerial Photography plane It is a stable enough plane for the beginner pilot Sincerely Mountain Models Doug Binder 465 D Street doug mountainmodels com P O Box 762 Penrose CO 81240 www mountainmodels com Phone 719 372 6727 Fax 719 372 3744 Last updated March 6 2005 ...

Page 2: ...shutter camera tilt optional GWS EPS400C E motor or brushless motor such as the Feigao 1308416L 3 micro servos 4 if you are using the camera tilt option we recommend the Hitec HS55 GWS Pico or Naro Electronic Speed Control ESC capable of handling at least 15 amps 1000mAH or higher 2s or 3S LiPoly battery is recommended for weight savings Parts List Quantity Description of Part Wood 1 1 32 Laser cu...

Page 3: ... sure you have the right pieces and that they are oriented correctly If you want to remove the charred edges caused by the laser cutting process dampen a cloth with bleach and gently rub the affected areas Removing the char will not increase the strength but will make it look better Assembly Instructions Assemble the Wing The first thing you are going to assemble is the wing of your airplane This ...

Page 4: ...apping to help the glue adhere This is very important Lay a strip down on a sheet of wax paper and apply epoxy to the strapping ensuring that there is an even layer of epoxy with no dry areas Lay the strapping in the notch on the wing and apply a length of wing tape or packing tape over the strapping to hold it in place Install the second spar in the same manner Give the epoxy a chance to set up b...

Page 5: ...ece of foam first 1 Lightly sand the entire wing Remove all the dust or the tape will not adhere The adhesive spray is known to contain acetone which will eat foam In order to minimize the problems you must have a clean nozzle emitting a fine mist which is kept a good distance away from the wing and moved quickly Apply a very light coating on the surfaces allow some dry time and then apply another...

Page 6: ... can use permanent markers to decorate your covering if you don t want to add weight or covering complexity Smoothing out the Covering Tape Optional Using a heat gun or hair dryer you can carefully shrink the tape until you get a glassy finish This is not a required step but will make the surface look more polished Be very careful as the tape can shrink enough to pull away from the adjoining tape ...

Page 7: ... sides to the two 1 16 plywood wing saddles Make sure that they are pressed well in and there is no gap between the two parts Glue with thin CA The scribe lines on the wing saddle pieces will face the inside of the camera mount base so you are designating right and left sides here 2 Press the four blind nuts into the holes in the 1 8 plywood two for the landing gear base and one each on the front ...

Page 8: ...y to insert the camera mount base assembly into the foam of the fuselage until the glue is completely dry as thin CA will melt the EPS foam Assemble the Fuselage You will assemble the fuselage by first gluing the two fuselage halves together adding four pieces of strapping plastic for reinforcement inserting the camera mount base wing saddle assembly sanding to shape adding servo mounting plates t...

Page 9: ... you glue it Position the bottom of the strapping an even 1 75 up from the bottom of the fuselage on the front and 1 5 up from the bottom of the fuselage on the rear Glue as you did the wing spar and hold the strapping down with wing tape or packing tape The tape can be removed when the epoxy is set NOTE This is your last chance to make sure your fuselage is straight Sight along the top of the fus...

Page 10: ...e wing saddle into place The scribe lines on the inside of the wing saddle should be just visible above the fuselage so you can use them to ensure that the right and left sides are lined up evenly The landing gear plate will sit in the cutout on the front fuselage bottom so it is flush with the foam 7 Lightly spray the entire fuselage with 3M77 and completely tape the fuselage including the camera...

Page 11: ... you use the GWS EPS motor you will use the stick mount We will only describe the stick type mount as the firewall mount is quite similar 1 Glue the motor mount together with thin CA Be sure that the glue is completely dry before sliding the mount into the fuselage as the uncured CA will dissolve the foam 2 Ensure that a GWS type motor gearbox will slide over the mount stick You may need to sand t...

Page 12: ... outside and retain it in place by firmly screwing on a second locking nut Repeat this step with the other wheel bolt and locking nuts 2 Install the landing gear to the landing gear mount with the off center holes nearer to the front of the fuselage Secure the landing gear in place with the hex head bolts and washers 3 Cut a slit in the bottom rear of the fuselage for the tail skid Apply a coat of...

Page 13: ... stabilizer is in line with the left edge of the rear of the fuselage You will need to remove the tape from the fuselage where the vertical stabilizer will be glued Vertical Stabilizer in line with left edge 5 Cut a 45 degree bevel along the trailing edge of the horizontal stabilizer This is so that the elevator can deflect down without interfering with the horizontal stabilizer I like to use an x...

Page 14: ...ding edge of the rudder The bevel in the rudder will angle so that the furthest forward point the part that will be hinged to the fuselage is on the left 8 There are two control horn reinforcement plates Slide a control horn into the plate and epoxy the plate and horn to the top of the elevator into the provided slot The horn will be in the left elevator as shown in the above photo 9 Follow the sa...

Page 15: ...then connect your batteries to your ESC Your servos will move to a neutral position assuming all of your radio trims are set to zero 0 1 Press the servos into the slots you made in the fuselage build You will need servo extension cables as your servo cables will not be long enough to reach the receiver You can either tape the cables to the side of the fuselage or cut a slot into the fuselage as sh...

Page 16: ...ds Install the Motor You will need Motor gearbox not provided with kit 2 x 3 8 motor retaining screw Bagged Parts Installing the Motor 1 Slide the motor over the motor mount stick and slide the motor as far back as possible 2 Using a small drill bit or the tip of an xacto start a hole in the side of the gearbox for the motor retaining screw Screw in the motor retaining screw and then install the p...

Page 17: ...osed to the air for cooling Connect the battery to and the motor to the ESC following the guides on the controller itself Installing the Camera Cradle 1 Glue the two camera cradle sides to the camera cradle bottom Ensure that the parts fit snugly and that the sides are perpendicular to the bottom It is best to glue this with epoxy because it creates a more secure joint 2 Using the socket head scre...

Page 18: ...the pushrod out of the hole in the cradle to switch holes but the pressure on the servo arm will keep the pushrod in place during flight 6 I find it advisable to wrap the servo in wing tape before gluing Roughen the tape on the servo and the fuselage to get a good glue bond between the two tape surfaces 7 Once you are satisfied with the movement of the cradle apply a drop of thin CA to the pushrod...

Page 19: ...back on the control surface are what is specified in the low rates column The plane will be fairly gentle set up as such If you are brand new to flying and will be teaching yourself you might want to set the rudder throws to 5 and the elevator to about 3 8 These soft controls will help to keep you from over controlling Setting the Lateral Balance The lateral balance is along the length of the airp...

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