SUPER KRAFT WACO UPF-7 User manual

1
SUPER KRAFT
WACO UPF-7
Assembly Manual
KANGKE INDUSTRIAL USA Inc.
65 East Jefryn Blvd. Deer Park New York 11729
http://www.kangkeusa.com E-mail: [email protected]
1-877-203-2377 Fax [phone]
Warranty: Kangke Industrial USA Inc. guarantees the kit to be free of defects in both
material and workmanship at the date of purchase. This warranty does not cover any parts
damaged by use or modifications. In no case shall Kangke Industrial’s liability exceed the
purchase cost of this kit. Since Kangke Industrial has no control of final assembly and material
used by user for final assembly, no liability shall be assumed or accepted for any damage
resulting from the use by user of final use-assembled products. This kit has been flight tested
for normal use. If the plane will be used for extremely high stress flying, the modeler is
responsible for reinforcing the high stress points. Inspect this kit immediately after receiving it,
report any missing and damaged parts within 10 business days otherwise the claim may be
de
ni
ed.

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Super Kraft
20% WACO UPF-7
Jimmy Franklin and his modified 1937 UPF-7 Waco bring the crowds
to there feet at every air show he attends. His outstanding pilot abilities,
jet-assisted performance and wing walking routine must be seen to be
appreciated. For information on Jimmy Franklin and photos of his
incredible Waco visit his web-site at www.franklinairsows.com
The only model authorized for production by Jimmy Franklin the Super
Kraft 1/5th standoff scale version of his plane will do the same at your
field. Beautiful on the ground and breathtaking in the air, this balsa and
ply airframe comes expertly covered in Jimmy's scale red and silver
trim scheme, or if you like to personalize your planes it can be ordered
with a beige only covering. The fiberglass cowl, wheel pants, struts, and
sturdy aluminum landing gear come pre-painted in matching colors.
Both wings are two-piece fully symmetrical, with an aluminum spar.
The 72-inch top wing and 64-inch bottom wing deliver 1,480 square
inches of lift, while four ailerons add to the incredible roll rate. The 62-
inch long fuselage and oversize tail feathers produce control other
models can only dream of. With a weight range of 12-15 pounds and an
average wing loading of only 21.5 ounces per square foot it will perform
on engines from 1.2 glow engines to 2.4 gas. Options include the use of
two or four aileron servos, alternate elevator locations and adjustable
servo tray locations will make balance easy. The prototype in the
instruction had a finished weight of 14 pounds 13 ounces ready to fly.
Powered with a ZDZ-40 {RC Showcase 301-374-2197 or
www.rcshowcase.com} vertical performance was breath taking. Servo
requirements are Elevator 60 oz/in, Rudder 90 oz/in, Ailerons with a
two-servo system 80 oz/in with a four-servo system 40 oz/in. In the
proto-type we used Hitec {858-748-6948 or www.hitecrcd.com) servos.
Elevator and Ailerons used HS5475HB, Rudder HS5945MG and a
standard HS325BB for the throttle. The batteries were lithium-ion
{Skyborn Electronics 972-267 5099 or www.rcpowerflight.com} 4400
mha. @ 6 volts for the reciever and 2200mha.@ 4.8 volts for the
ignition.

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WARNING! As model aircraft get larger and more powerful,
the risk for injury increases. KANGKE’s extensive testing
procedures insure a high quality kit that has gone through many
steps to provide you with a safe reliable airframe. Nothing we
can do however will make up for poor assembly or irresponsible
behavior at the field. A model this size and weight traveling at 60
MPH contains enough energy that if it were to contact another
person, the injuries would be extensive, possibly fatal. The safe
operation of this model is yours and yours alone. If you are a
beginner or have never flown a model of this size and power,
you should not make the attempt without the help of an
experienced pilot.
This Manual is the sole property of Kangke Industrial USA, Inc.
Reproducing any part without the consent of Kangke Industrial USA, Inc. is a
lawful violation.
Read each step of the instructions carefully. Be sure you understand
what is required and what the procedure is before you glue or cut
anything. How well you assemble this model will have a direct effect on
its flight characteristics.
If you are familiar with the assembly of ARF type aircraft you will find
the order of assembly steps in this manual to be unusual, this was
necessary to insure the fastest, most accurate assembly possible. Super
Kraft recommends you follow the assembly order as shown.
Specs:
Span 72 upper / 64 lower
Length 62 inches
Weight 12-15.5 pounds
Area 1,480 square inches
Loading 22 oz./ft average
Channels 4 with 6-8 servos
Engine 120 glow – 2.4 gas
Covering Oracover
Tail wires functional
Wing struts functional
Cowl fiberglass
Wheel pants fiberglass
Kit contents:
Wing panel/controls 4
Fuselage 1
Cowl 1
Windshield 1
Main gear 1
Tail gear kit 1
Stabilizer/elevator 1
Rudder/fin 1
Tail wire pack 1
Wing strut 2
Hardware pack 1
Wing tube 2
Wheel kit 1

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The hardware for each step is packed
in separate bags. The bag for the
landing gear contains the gear screws,
axles and wheel pant screws; the bag
for the wings contains the strut
mounts and all necessary hardware,
etc. Keep the bags in separate
containers to speed the assembly
process.
1) Open the holes for the landing gear.
2) Open the holes for the lower wing
attachment dowels.
3) Install the landing gear. This will
stabilize the round fuselage and make
assembly easier.
4) Install the upper wing “M” struts.
Note the front of the “M” is taller.
5) Open the holes for the lower wing
attach screws, on both sides of the
wing.
6) Open the holes for the “M” and
“N” strut brackets. The holes are
small and hard to find. Use the
dimensions below to locate them.
Tal
l
short
Front
Lower wing
Upper wing
20 3/8 5 1/2
1 5/8
5
53/4
3/4
17 1 5/8
5 3/8

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7) Label and remove the ailerons.
Install the Wing lock in the top wing.
8) Bend the attach brackets to
approximately 80 degrees.
9) Install the brackets on the outside
of the “M” struts with a screw,
washer, and lock nut. Snug them but
do not tighten. Then install the top
wing.
10) Install the lower wing.
11) Install the “N” struts in the same
manner as the “M” struts. Note the
brackets will point in the opposite
direction, on the lower wing they face
out, on the upper they face in.
12) The upper wing incidence needs to
be set. How the plane flies will change
with this setting. The best way to do
this is with an incidence meter,
however it can be done with a ruler.
For gentle flight with soft stall, set the
incidence from 0 to 1.5-degrees
positive {the front of the wing should
be the same to ¼-inch wider than the
back}. For aggressive maneuvers set it
from 0 to 1.5-degrees negative. This
will make the stall more aggressive
and reduce the knife-edge coupling
caused by the large stagger of the
wings. You will find this a fun place to
experiment with set-up when flying. It
can be change quickly with shims
under the brackets and when you get
it where it fits your personal taste,
make it permanent with the slots in
the brackets. Remove the wing by
removing the screws that hold the
brackets to the wing.
Wing loc
k

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13) Assemble the tail wheel as shown.
14) Install the tail wheel using the
provided screws with the pivot over
the end of the fuselage bottom.
15) Test fit the stabilizer and fin. Use a
string from the center of the firewall
to verify the stabilizer is square to the
fuselage. Carefully remove the fin; do
not disturb the stabilizer alignment.
16) Do not remove any covering
material from the fin or stabilizer.
Apply 30-miniute epoxy to the areas of
the fin shown, as well as a small
amount to the front and rear of the
stabilizer through the fin slot in the
fuselage (Do not use CA). A light
coating is all that’s necessary, clean up
any spill with a paper towel and
alcohol.
17) Locate and open the holes in the
stabilizer for the flying wire brackets.
The holes are small and difficult to
find the dimensions below will help
locate them. The flying wires are
functional and must be used.
18) Open the holes in the fin as done
with the stabilizer. Use the dimensions
below to locate them.
30 minute epoxy
3/4-inch
9/16-inch
2-inches
3 5/8-inches
5/8-inc
h
9/16-inc
h

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19) Bend eight flying wire brackets to
a 45-degree angle.
20) Install 4 of the brackets on the fin,
the other four on the upper surface of
the stabilizer, the remaining four on
the lower surface of the stabilizer.
Snug the screw but do not tighten.
21) Install the four long upper flying
wires. Note the longer wires go to the
rear. Slide 2 rubber clevis lock sleeves
over each wire. Install the wire so
there is no endplay, but not tight
enough to distort the stabilizer or the
fin. Slide the lock sleeves over the
clevis pin. This will prevent it from
opening in flight.
22) Install the lower flying wire
bracket at the front of the tail wheel
bracket as shown.
23) Install the lower flying wires as
was done with the top. Be sure not to
distort the surfaces. Now tighten the
six bracket attach screws.
24) Wrap the front of the fuselage
with masking tape. Draw a straight
line back from the center of each cowl
mount block. Measuring from the
center of each cowl block, make a
cross 1-inch back. These marks will be
used to locate the center of the blocks
when the cowl mount holes are drilled.
1-inc
h

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25) Place cowl in position, slide a ruler
under the cowl to the mount block and
adjust the cowl so the dimension is the
same all the way around. This will
insure the cowl is square to the
fuselage.
26) Make a mark on the cowl at the
center of the cowl block for each
mount location.
27) Drill a 1/16-inch hole at each
mark.
28) Cut five ½-inch lengths from the
inner plastic throttle push rod.
29) Drill the cowl blocks only to 1/8-
inch, push the pieces of push rod into
the holes flush with the surface of the
block. Soak the area around the hole
with thin CA.
30) Test fit the cowl.
31) Measure the distance from the
firewall to the front of the cowl;
record this number for the engine
installation. ----------------------------
32) Remove the cowl and top cover to
prepare for the engine installation.
Because of the large number of
available engines this section should
only be used as a guide. Follow the
engine manufactures instructions for
proper installation. 1-degree of right

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thrust has been built into the firewall,
this is the proper amount for the
smaller engines in the range, 1 ½
degrees works well with 150 size, and
2-degrees was used in the proto type
for the ZDZ-40. The center of the hole
in the firewall should be the centerline
of the propeller flange. Different
engine mount spacing will require
different thickness shims to achieve
the desired angle. Contact your
engine or engine mount manufacture
for proper sizing.
33) Make the required openings in the
cowl for your engine selection.
34) Assemble the fuel tank. Two or
three line systems may be used. Check
the installation instructions for your
engine.
35) For glow applications attach the
tank with a bead of silicone directly to
the hole in the firewall. Use the 3/8 X
3/8 balsa stock to support thee tank.
For gas applications mount the tank
under the strut support as shown,
using the supplied balsa as supports
front and rear.
36) Locate the center of each hinge
and insert a pin. The pins will keep
the hinges centered during assembly.
37) Slide the rudder in place; align for
free movement with minimum gap at
the top and hinge line. Remove the
pins and apply 3 drops of thin CA to
each side of each hinge. The CA will
“wick” up the hinge and secure it.
Repeat the process for all other
control surfaces.

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38) Install the anti-rotation screw in
the wheel pants, followed by a washer
and lock nut. Place an axle screw in its
hole to align the pant and tighten the
anti-rotation screw.
39) Assemble the axles. Slide the axle
through the wheel, install a collar and
tighten the setscrew leaving 1/8 - 1/4-
inch side play. Screw the non-locking
nut up to the collar followed by a
washer.
40) Spread the wheel pant carefully
and slide the wheel/axle assembly in
place. Hold the axle with an Allen
wrench and tighten the lock nut on the
axle.
41) There are several different control
configurations that can be used in the
Waco. Because of this no control rods
are supplied and must be fabricated
by the builder. The first decision is the
wings. The servo bays are open in the
bottom wing only for the use of two
aileron servos with a link to connect to
the top ailerons. To use four aileron
servos (recommended) open the bays
in the underside of the top wing. You
will also need to open a hole ¾-inch
forward and ½-inch to the center of
the rear “M” attach screw.
42) Use a wire bent in a hook to pull
the servo pull string through the hole.
3/4-inch
1/2-inch