cessna 185 scratch built rc instructions.pdf

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INSTRUCTIONS Budget RC Cessna 185 Flat Wing with Ailerons Thank you for choosing Budget RC and the 185. This represents a new approach to foam kits. This is a very easy to assemble kit and anyone with balsa experience will love how easy this foam is to work with. Here is what we suggest you use to build your kit. Gorrila Glue or similar Hot melt for servo mounting only Light weight spackling paste Water based clear Polyurathane Paint to seal the foam before painting (2 coats) Krylon spray paint for plastics only after it is sealed , or it will eat it up! Epoxy for the Motor Mount High quality clear tape for hinges OK let's get started. You will receive your kit so that the parts are attached to the sheet by tabs. Before cutting out these parts look at the diagram and make sure you recognize them. This tab method of packaging seems to work best and limits postal

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Process of building rc cessna 185

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Page 1: cessna 185 scratch built rc Instructions.pdf

INSTRUCTIONSBudget RC Cessna 185Flat Wing with Ailerons

Thank you for choosing Budget RC and the 185. This represents a new approach to foam kits. This is a very easy to assemble kit and anyone with balsa experience will love how easy this foam is to work with. Here is what we suggest you use to build your kit.

• Gorrila Glue or similar• Hot melt for servo mounting only• Light weight spackling paste• Water based clear Polyurathane Paint to seal the foam before

painting (2 coats)• Krylon spray paint for plastics only after it is sealed, or it will eat

it up! • Epoxy for the Motor Mount• High quality clear tape for hinges

OK let's get started. You will receive your kit so that the parts are attached to the sheet by tabs. Before cutting out these parts look at the diagram and make sure you recognize them. This tab method of packaging seems to work best and limits postal

Page 2: cessna 185 scratch built rc Instructions.pdf

damage.

PART RECOGNITION

Most parts are obvious but the ones with the numbers are as follows. #1 are the motor mount sides (doublers), two thick on each side, make sure you notice one side has an angle. The angle corisponds to the angle on the blue center block, there is 1.5 degrees downthrust for the motor. These are installed after the depron fusealage sides are attached to the blue block.

#2 is installed after #1. #2 is the motor mount top (doubler). #2 is tapered because the inside of the motormount will be tapered as well after the fuse sides are installed

#3 is the battery box sides. Notice they have a cut line and arrows cut into them. The arrows are to be at the top of the box and point to the front of the 185. The cut out is where the langing gear wire will pass through. #3 are installed first with the landing gear and then #4 goes over to seal in the landing gear, again arrow goes to the top and

Page 3: cessna 185 scratch built rc Instructions.pdf

points to the front. Gorrila glue handles the whole job here.

THE FUSELAGE

The first thing is to laminate the two blue blocks using Gorrila glue. You only need a thin layer of glue. Don't over glue. Make sure the sides match. Pin and weight down the blue blocks. Note: If you spray one side with water the glue will set up quicker.

Now cut out the paper sanding guides and trace the lines on to the block front and back. This will create the taper for the fuse sides. Take your time and make it even. 80 grit sand paper and a light touch suggested.

Page 4: cessna 185 scratch built rc Instructions.pdf

You will notice a notch on the inside of the block. Using a knife or hacksaw, gentley continue this notch down the side. The landing gear wire will go through here. This also lines up with part #3

Page 5: cessna 185 scratch built rc Instructions.pdf

The undercambered is shown below, you have the flat wing version with ailerons, but the build is the same. Get out those pins and dollar store rubber bands. Thin amount of Gorrila glue and water spray covers this. Make sure everything lines up. The front may not line up perfect because most of it will be sanded to the line you drew. PIN THE SIDES or it will move. Notice the blue block sits 1/4” below the sides, this is where the triangle top goes.

Page 6: cessna 185 scratch built rc Instructions.pdf

Install the strips as shown. Install the strips on the wing saddle flush with the edge. Install the rear strips a 1/4” below the edge. When the

glue has set, install the top and bottom triangle caps. The top one lines up with the back of the wing saddle and sits on top of the blue block

Page 7: cessna 185 scratch built rc Instructions.pdf

It is a good idea to fit, but do not glue the bottom on until after you have installed the control rods.

Pre-bend each landing gear wire to the plan and test fit as shown below

Page 8: cessna 185 scratch built rc Instructions.pdf
Page 9: cessna 185 scratch built rc Instructions.pdf

Sand and shape the nose100 grit and then 220 grit works well. After sanding, glue in landing gear and landing gear doublers

Page 10: cessna 185 scratch built rc Instructions.pdf

Now you can install the dowel rods through the fuse, front and back. Notice the hole cut out for the control rods (below).

Page 11: cessna 185 scratch built rc Instructions.pdf

Attaching the tail feathers. It's a good idea to hinge the rudder before gluing it to the fuse. Do not hinge the elevator until after gluing the horizontal stabalizer into place.

Print out the control rod detail Click Here

Assemble the control rods as shown. Install your servos and center them using your radio. Make sure the rudder and elevator and servos are in the neutral position before gluing the .040 wire in place.

Page 12: cessna 185 scratch built rc Instructions.pdf

You will be cutting a slot in the top of the fuse for the rudder control rod. You will be cutting a slot in the side of the fuse for the elevator control rod.

Assemble wing as shown

Glue the wing halves together on a flat surface and glue the 1/8” Plywood Strips to the front and back of wing and install the carbon strips.

Glue the servo to the underside of the wing. Position the servo about 1/8” from the fuse sides and notch the top of the wing seat to allow the wires to get to the radio.

CG is 2 1/4” from the leading edge of the wing