background image

13

q

4) Place the stabilizer onto the stabilizer mount-

ing platform.  The trailing edge of the stabilizer should
be even with the rear edge of the fuselage.

q

5) Install the wing onto the fuselage.  Align the

centerline drawn on the top and the rear of the stabi-
lizer with the centerline marks drawn on the fuselage.
When those are aligned, hold the stabilizer in that po-
sition using masking tape.  Align the horizontal sta-
bilizer with the wing.  When viewed from the rear,
the horizontal stabilizer should be level with the wing.
If it is not level, use 220 grit sandpaper with a sand-
ing block and sand down the high side of the stabi-
lizer mounting platform until the proper alignment is
achieved.  The tips of the stabilizer should also be
equal distance from the tips of the wing.  See figures
# 4 and # 5 below.

q

3) Using a ruler and a pen, locate and mark the

centerline of the fuselage at both the front and the
rear of the stabilizer mounting platform.  See photo
# 10 below.

Photo # 10

Figure # 4

Figure # 5

q

6) When you are satisfied with the alignment,

hold the stabilizer securely in place with masking tape,
but do not glue it in place at this time.

MOUNTING THE HORIZONTAL STABILIZER

q

7) With the stabilizer held firmly in place, use a

pen and draw lines onto the stabilizer where it and
the fuselage sides meet.  Do this on both the right and
left sides on the bottom of the stabilizer.

q

8) Remove the stabilizer from the fuselage.  Us-

ing the lines you just drew as a guide, carefully re-
move the covering from between them using a mod-
eling knife.  See photo # 11 below.

Photo # 11

When cutting through the covering to remove
it, cut with only enough pressure to only cut

through the covering itself.  Cutting into the balsa
structure may weaken it.

q

9) When you are sure that everything is aligned

correctly, mix up a generous amount of Kwik Bond 5
Minute Epoxy.  Apply a thin layer to the bottom of
the mounting area on the bottom of the stabilizer and
to the top of the stabilizer mounting platform on the
fuselage.  Set the stabilizer in place and realign.
Double check all of your measurements once more
before the epoxy cures. Hold the stabilizer in place
with masking tape and remove any excess epoxy us-
ing a paper towel and rubbing alcohol.

HINGING THE ELEVATOR

q

10) Remove the three plastic hinges from the el-

evator.  Using 220 grit sandpaper, lightly sand the top
and bottom of each half of all three hinges.

Lightly sanding the hinge's gluing surfaces will
roughen the plastic increasing the bonding

strength between the epoxy and the hinge.

Stabilizer Mounting

Platform

Draw

Centerline

Draw

Centerline

Remove

Covering

Draw Line

Draw Line

A

A-1

A = A-1

B

B-1

B = B-1

Summary of Contents for Whisper

Page 1: ...les have been strategically placed to remove unnecessary weight without compromising strength All this adds up to an airplane that climbs out with authority and will also do well in the thermals Inclu...

Page 2: ...the Outboard Dihedral Braces 7 Joining the Outboard Wing Panels 8 Joining the Wing Halves 8 Installing the Striping Tape 9 Installing the Wing Hold Down Strip 10 Wing Installation 10 Installing the F...

Page 3: ...ed Controls available for 540 and 05 size motors If you opt not to use a proportional electronic speed control an electronic switch such as the Hitec Motor Controller SP 1003 part 41003 is an economic...

Page 4: ...Nylon Pushrod Housings q 1 3mm x 55mm x 14mm Pushrod Support q 1 8mm x 20mm Clear Tubing q 2 Metal Clevises q 2 Nylon Control Horns w Backplates q 4 2mm x 15mm Machine Screws q 2 Adjustable Servo Conn...

Page 5: ...idow Peak Charger 350360 q Arco 64 Rubber Bands 24649 Recommended Optional Upgrades q Hitec Flash 4X FM Computer radio w 2 Servos q Trinity 7 Cell 1700Mah Battery 1779 q Promax Activator Digital Peak...

Page 6: ...in bold are listed in the glossary 3mm x 12mm Machine Screw Quantity 4 3mm x 8mm Machine Screw Quantity 2 2mm x 15mm Machine Screw Quantity 4 2mm x 12mm Smooth Shank Machine Screw Quantity 3 3mm Nylon...

Page 7: ...The prewired plastic connector on the motor is called a Tamiya Connector Most electronic speed controls also use this style of connector but some do not If your speed control does not have this type o...

Page 8: ...ces apply a thin layer of epoxy to only one side of only one of the two braces For the epoxy to work properly mix equal amounts of part A and part B Mix the two parts together for about 45 seconds unt...

Page 9: ...inboard panel so it does not move Magazines work good for this See figure 2 at top right Figure 2 The wing panels should fit together tight with little or no gaps in the joint If the joint is not tigh...

Page 10: ...posed half of the dihedral brace the inside of the plywood box in the root rib and the entire surface of both root ribs Make sure to use enough epoxy to fill any gaps q 24 Slide the two wing halves to...

Page 11: ...8 behind the front of the fuselage and 1 2 down from the top of the fuselage q 2 Test fit one of the 6mm x 32mm front wing hold down dowels into the predrilled hole in one front wing hold down dowel m...

Page 12: ...edge of the wing saddle and one mark on top of the forward bulkhead These two marks will help you align the wing when you install it onto the fuselage You may wish to make these marks in permanent in...

Page 13: ...pen and draw lines onto the stabilizer where it and the fuselage sides meet Do this on both the right and left sides on the bottom of the stabilizer q 8 Remove the stabilizer from the fuselage Us ing...

Page 14: ...HINGING THE RUDDER q 1 Hinge the rudder to the vertical stabilizer using the same technique used to hinge the elevator ALIGNING THE VERTICAL STABILIZER q 2 Set the vertical stabilizer on top of the h...

Page 15: ...cal stabilizer Use a modeling knife and 220 grit sandpaper to make any necessary adjustments to obtain the proper fit You may find that the sides of the fairing ex tend beyond the trailing edge of the...

Page 16: ...of the precut opening in the servo tray to fit your servos If so carefully use a modeling knife q 5 Install the two servos using the wood screws provided with your radio system Drill 1 16 pilot holes...

Page 17: ...re directly in line with the hinge line The control horn should also be perpendicular to the hinge line See figure 9 below Figure 9 q 9 When satisfied with the alignment use a 5 64 drill bit and the c...

Page 18: ...arm Enlarge the hole in the servo arm using a 5 64 drill bit to accommodate the servo connec tor Remove the excess material from the servo arm using a modeling knife See figure 11 below Figure 11 Afte...

Page 19: ...ug the rudder servo lead into the receiver Plug the battery into the motor controller and turn on the radio system Center the rudder trim tab on the transmitter Place the servo arm onto the servo The...

Page 20: ...washer and nylon Photo 28 Photo 29 insert nut onto each screw Tighten the screws com pletely to hold the motor mount securely in place q 8 Using a 1 4 drill bit carefully drill three holes through th...

Page 21: ...inum Overtightening the propel ler nut can damage the adapter q 11 Slide the spinner cone over the propeller blades and onto the hub Secure it in place by thread ing one 2mm x 12mm smooth shank machin...

Page 22: ...d set the canopy back in place Using a pen mark where the canopy needs to be cut to clear the front radius of the wing q 8 Using a modeling knife cut the canopy at the mark made Set the canopy back in...

Page 23: ...o the fuselage sides to hold the receiver se curely in place q 2 Using a 1 16 drill bit drill a hole through the side of the fuselage near the receiver for the antenna to exit Route the antenna out of...

Page 24: ...itial test flying training and for the accomplished pilot If this is your first air plane please set the control throws according to the training settings These settings allow the airplane to fly smoo...

Page 25: ...he green ABC s OF FLYING If you ve come this far now you re ready to prepare for the maiden voyage of your new Whisper Before proceeding we highly recommend double checking all of your work Make sure...

Page 26: ...oll yaw and pitch Roll is the wing tips raising and lowering Yaw is the nose mov ing from right to left Pitch is seen as the nose mov ing up and down Maintaining flight is the act of overcoming weight...

Page 27: ...le back to turn off the motor As the motor is turned off allow the plane s nose to drop some The descent should be gentle so let the nose drop about 10 to 20 degrees Keep the wing level unless a turn...

Page 28: ...ome keys to start this process that should help you learn to be a better thermal pilot BASICS OF THERMAL FLYING The first key is to become very familiar with the way the Whisper flies The way it respo...

Page 29: ...sticks to the wood frame of the airplane The Whis per uses heat sensitive vinyl covering Cycle The act of fully charging and discharging the flight battery Cycling the battery increases perfor mance a...

Page 30: ...rudder to turn the airplane It also gives the airplane vertical stability Wing Hold Down Dowels Round pieces of hard wood dowels inserted through the fuselage at the front and back of the wing They ar...

Page 31: ...maged q Wrong Size q Missing q Wrong Shape If you checked any of the boxes above did you contact our Customer Service Department to re solve the problem q Yes q No 7 Was any of the assembly difficult...

Page 32: ...2 Fold along dotted line Fold along dotted line Global Hobby Distributors Attn Wattage Customer Care 18480 Bandilier Circle Fountain Valley CA 92728 Post Office will not deliver without proper postage...

Reviews: