Mountain Models Tantrum Manual de usuario

Tantrum Specifications

Wingspan: 37in. (94cm.)

Length: 37in. (94cm.)

Wing Area: 370in2(2388cm2)

Weight (without battery): 10oz. (255g.)

Wing Loading (depending on battery): 5.0 – 6.0oz/ft2

Mountain Models Tantrum

Revision History

Date Revision Notes/Comments

6/1/03 Document initial creation.

Thank you for purchasing the Tantrum. This plane was designed for the pilot who wants

something more than the everyday parkflyer, and that when using proper mixing, is 3D

capable.

Please keep in mind that this plane is an aileron/elevator/rudder (full house) setup,

intended for the intermediate to advanced pilot. It’s intended to be flown in limited

space situations, without sacrificing its outstanding performance capabilities.

Sincerely,

Doug Binder

[email protected]

Mountain Models

6975 Blackhawk Place

Colorado Springs, CO 80919

www.mountainmodels.com

Phone: 719.592.1387

Fax: 719.528.6125

For the most up-to-date information, please refer to our Web site.

Created by Ross Design Group for exclusive use by Mountain Models.

Mountain Models Tantrum 3

Before You Begin

Before you begin building your Tantrum make sure you read and understand all of the

instructions thoroughly.

Additionally, you will need to have the following items. Check to make sure that all of

your parts are there and in good shape, and review a couple quick building tips to make

this whole process go quicker and easier.

What You Will Need

• Smooth and flat work surface

• Wax paper to protect the plans

• Thin and thick Cyanoacrylate (CA) glue

• Hobby knife with #11 blades

• Needle nose pliers

• Wire cutters

• Sanding block with 200 grit sandpaper

• 90°triangle or small square to true the bulkheads and fuselage

• Covering material

• Sealing iron for applying the covering

• Clear packing tape for hinges

• 5 channel computer radio with aileron/flap mixing, or a 4 channel radio with a Y

cable for the two aileron servos

• 4 or 5 channel receiver

• GWS EPS300C-D motor with a 12x6 propeller

• 4 micro servos (we recommend either the Hitec HS55s or the GWS Picos)

• Electronic Speed Control (ESC) capable of handling at least 10 amps

• Battery pack (we recommend you use at least the following):

♦ 8 cell 600 mAH NiCd (configured )

♦ 8 cell 950 mAH KAN NiMH (configured )

Parts List

The following tables list all of the pieces that are in your Tantrum kit.

Description of Parts

Wood

Figure A: 1/8" laser cut balsa sheet

Mountain Models Tantrum

Description of Parts

Wood

Figure B: 1/8" laser cut balsa sheet

Figure C: 1/16" laser cut balsa sheet

Figure D: 1/8" laser cut balsa sheet

Figure E: 1/16" laser cut balsa sheet

Figure F: 1/16" laser cut balsa sheet

Figure G: 1/16" laser cut balsa sheet

Figure H: 3/32" laser cut balsa sheet

Mountain Models Tantrum 5

Description of Parts

Wood

Figure I: 3/32" laser cut balsa sheet

Figure J: 1/32" laser cut balsa sheet

Figure K: 1/16" laser cut plywood sheet

Figure L: 1/16" laser cut plywood sheet

Figure M: 1/64" plywood sheet

Figure N: 5/16" laser cut balsa for cowl

Figure O: 1/4" square x 18” balsa leading edge (x 2)

Figure P: 1/64" plywood sheet

Mountain Models Tantrum

Number

in Kit Description of Part

Wire

1 1/16" x 14" landing gear wire

1 1/32" x 18" thin music wire for the tailskid and pushrods

Plastic

1 Canopy sheet

Bagged Parts

1 1/8" round x 2.75" hardwood dowel

1 6" x 3/32" heat shrink tubing for the pushrods

2 Internal star washers for wheel retainers

2 3/32" x 3/4" aluminum tube wheel axles

1 6" Velcro strip for mounting the battery and receiver

1 6" double-sided Velcro strip for battery strap

1 1-1/2" clear mushroom head Velcro for canopy closures

2 Wheels

1 Spectra thread (65 pound strength) for pull-pull system

6 Micro pushrod adjusters

4 Cotter pins for the pull-pull cables

2 #2 x 3/8" motor and battery mount retaining screw

2 4-40 wing bolts

4 Washers for the wing assembly

2 Nylon insert locking nuts

General Building Tips

• Tape your plans to the work table, and then cover them with wax paper to

protect them.

• Balsa is a lightweight and fragile wood, so you do need to be careful with it;

however, you will also need to use a little bit of force to make everything fit

properly, so don't be too timid.

• Join all of your pieces using thin CA (cyanoacrylate) glue, unless we tell you

otherwise. In general, only a small amount of CA is necessary to glue parts

together.

• Don't remove any pieces from the balsa sheets until they're ready to be used.

That way, parts won't get mixed up or disappear.

• After you remove pieces from the balsa sheets, carefully remove any of the extra

material from where the piece was attached.

• Don't force your pieces together. If they aren't going together properly, make

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.

Mountain Models Tantrum 7

Assembly Instructions

Okay, so now you are ready to actually build the Tantrum. If you follow these simple

instructions, we can have you flying in no time!

The Entire Process Demystified

Step 1: Prepare your workspace for assembly.

Step 2: Assemble the stabilizers, rudder, and elevator.

Step 3: Assemble the ailerons.

Step 4: Assemble the wings.

Step 5: Assemble the fuselage.

Step 6: Assemble the landing gear.

Step 7: Sand, attach the canopy mounts, and cover all your pieces.

Step 8: Install the elevator and rudder servos

Step 9: Attach the control horns

Step 10: Attach the elevator, stabilizers, and the rudder.

Step 11: Install the aileron servos.

Step 12: Install the motor.

Step 13: Attach the wings.

Step 14: Attach the electronics.

Step 15: Finish the kit up with the canopy, batteries, throws, center of gravity, and the

landing gear.

Final Step: On a calm day, find a field without too many trees or light poles and go fly.

Trees and light poles REALLY like to munch on remote

control planes. We say this from experience…trust us.

Step 1: Preparing Your Workspace for Assembly

Before you begin assembling the Tantrum, you must prepare your workspace.

! Making space in what is probably the most crowded place in your home

1. Lay out the plans on a flat worktable, and then tape them down.

2. Cover the plans with a sheet of wax paper. This will protect the plans from glue.

Step 2: Assembling the Stabilizers, Rudder, and Elevator

The first things that you are going to assemble are the stabilizers, rudder, and elevator.

When assembled, these are also known as the tail feathers.

Necessary Pieces

• 1- 1/8" laser cut balsa sheet (Figure A)

• 1- 1/8" round x 2.75" hardwood dowel (Bagged Part)

Mountain Models Tantrum

Assembling the Horizontal Stabilizer

! Putting the pieces together

1. Remove the pieces shown in black from the balsa sheet.

To remove the pieces, gently flex the balsa sheets until the pieces fall out.

You may find that you need to carefully remove the extra pieces of wood

that originally held the piece to the sheet.

2. Position the pieces as shown below. Using the interlocking tabs and grooves, begin

connecting the pieces together to form the horizontal stabilizer.

Assembled Horizontal Stabilizer

Once the pieces are connected together you should be

able to fly it around the room making airplane noises...yes, I do mean BEFORE you

add the glue!

The pieces are pretty snug when you are trying to fit them together. Use

about the same amount of pressure as you would on a jigsaw puzzle,

unless of course you don't like jigsaw puzzles and tend to smash the

pieces in…in that case, be MUCH more gentle then putting together a

puzzle.

3. Using just the tip of your CA applicator, apply a drop of thin CA to each of the joints.

The glue will be wicked into the balsa to form a secure bond, so it won't take much

glue to do this. Make sure that you are only working on one joint at a time, and that

the pieces are firmly connected before moving to the next joint.

Mountain Models Tantrum 9

Be careful to keep your fingers as far away from the glue as possible; otherwise,

you might become a part of the model permanently. If you do get stuck,

remove yourself as carefully as possible, trying to avoid taking any of the wood

with you. Once separated, remove the CA glue from your fingers using nail

polish remover, or acetone, making sure you wash your hands thoroughly when

done.

4. Once the parts are dry, carefully remove them from the wax paper.

5. Bevel the trailing edge 45°. This should ONLY be done on one side of the piece, and

only for the bottom edge.

Horizontal Stabilizer with Bevel Guide

• To bevel or taper the piece, place it on your worktable with the edge you

are working on lining up with the edge of the table. Using one bar

sander to hold the piece down, use another bar sander to do the actual

sanding.

• While sanding, try to go over the entire edge in a sweeping motion,

avoiding any part of the assembly that is to remain non-beveled. This

will make sure that your bevel angle is even across the entire way.

• Make sure that you sand lengthwise with the grain and not across it, as

this will cause less strain on the wood and less chance of breaking the

pieces.

• Using a tack cloth, carefully remove the balsa dust once you are done

sanding.

Assembling the Vertical Stabilizer

The process for the vertical stabilizer is pretty much the same as for the horizontal

stabilizer; therefore, the following section is mostly for reference purposes, so you can

refer to the pictures as necessary.

Mountain Models Tantrum

! Putting the pieces together

1. Remove the pieces shown in black from the balsa sheet.

2. Position the pieces and begin connecting them together to form the vertical stabilizer.

Assembled Vertical Stabilizer

3. Glue all of the joints, following the process described for the horizontal stabilizer.

4. Once the parts are dry, carefully remove them from the wax paper.

Assembling the Rudder

! Putting the pieces together

1. Remove the pieces shown in black from the balsa sheet.

2. Position the pieces and begin connecting them together to form the rudder, as shown

in the following image, and then glue all of the joints.

3. Once the parts are dry, carefully remove them from the wax paper.

4. Bevel the entire leading edge 45°. This should ONLY be done on one side of the piece.

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