background image

GENERAL

1 I will not fly my model aircraft in competition or

in the presence of spectators until it has been proven
to be airworthy by having been previously success-
fully flight tested

2 I will not fly my model aircraft higher than approx-
imately 400 feet within 3 miles of an airport without
notifying the airport operator I will give right of
way to, and avoid flying in the proximity of full scale
aircraft Where necessary an observer shall be

utilized to supervise flying to avoid having models
fly in the proximity of full scale aircraft

3 Where established, I will abide by the safety rules
for the flying site I use, and I will not willfully and
deliberately fly my models in a careless, reckless
and/or dangerous manner

6 I will not fly my model unless it is identified with
my name and address or AMA number, on or in the
model Note This does not apply to models flown
indoors

RADIO CONTROL

1 I will have completed a successful radio equipment

ground check before the first flight of a new or re-
paired model

2 I will not fly my model aircraft in the presence of
spectators until I become a qualified flyer, unless
assisted by an experienced helper

3 I will perform my initial turn after takeoff away
from the pit, spectator and parking areas, and I will
not thereafter perform maneuvers flights of any sort
or landing approaches over a pit, spectator or parking
area

FLYING

The SUPER SPORTSTER 90/120 is a great fly-

ing sport airplane that flies smoothly and predicta-
bly, yet is highly maneuverable It does not have
the self-recovery characteristics of a primary trainer,
therefore you must either have mastered the basics

of R/C flying or seek the assistance of a competent
R/C pilot to help you with your first flights

We recommend that you take it easy with your

SUPER SPORTSTER 90/120 for the first several

flights and gradually get acquainted with this fan-
tastic ship Add and practice one maneuver at a time,
learning how she behaves in each one We particu-
larly enjoy the way the SUPER SPORTSTER 90/120
tracks through big loops, with very little aileron or
rudder correction required' Spins, snap rolls and in-
verted spins are also performed with ease High speed
knife edge flight and point rolls are performed with
ease, but they require some aileron correction to
counteract the slight amount of rudder-induced

bank

When it's time to land, make your approach

low and shallow, as this ship wants to just keep on
flying (especially if built light) If you find that it
lands a little fast, you might try dialing in a few
clicks of up elevator when you cut the throttle on
the downwind leg of the landing approach This will
automatically help to bleed off some of the speed If
you have trouble getting your big engine to idle down
slow enough to land at a comfortable speed, we
suggest that you purchase and install one of our
"Switch-N-Glo onboard glow systems, which will
allow you to set the idle much lower without killing
the engine

Have a ball' But always stay in control and fly

in a safe manner

Large, high performance airplanes like the

Super Sportster 90/120 are more susceptible to con-
trol surface flutter
 than smaller or slower models,
therefore, when flying your Super Sportster 90/120,
you are advised to control the speed of the airplane
to avoid exceeding the speed at which the control
surfaces will flutter The "flutter speed" of your
airplane depends on many factors, the most impor-
tant of which is the amount of "slop" in the control
linkages You can have a lot of fun and still fly safely

by not pushing the speed "to the limit" This means
actively using the throttle while flying For in-

stance, cut the throttle when coming down out of big
vertical maneuvers to avoid 90mph+ speeds Some

people jam the throttle to "full" for takeoff and never
cut it back until ready to land' We consider this
practice to be not only unsafe and irresponsible, but

also a very unrealistic way to fly an airplane of this
size All full-scale airplanes have a "red line" speed

beyond which flight is unsafe All R/C model

airplanes also have "red line" speeds, however, they
are much more difficult to pinpoint because each
kit-built model has its own individual characteris-
tics Therefore, you are strongly advised to fly sensi-

bly and responsibly, considering the type of airplane
you are flying

If you have any doubts about your ability to

stay within the intended speed envelope described
above, then we strongly encourage counter-balanc-
ing the elevators as instructed below (see drawing

on page 44)

NOTE' We have (by permission of Model Aviation
magazine) included a copy of an article by Ron Van
Putte, which was published in the May, 1988 issue
of Model Aviation to help you better understand the
concept of control surface flutter According to this
article, the "cure-all" is to static balance the control
surfaces Although not required on a well built Super
Sportster 90/120 that is flown in its designed speed
envelope (see above), this is one modification that is
authorized if you choose to do so, because (in theory)
it will eliminate any possibility of control surface

flutter (or "buzz") To balance the elevators it will
require a 1-ounce weight approximately 2 inches for-
ward of the hinge line (one weight per elevator) This
addition will then require you to add approximately
6 ounces to the nose of the airplane to rebalance
The article is at the end of these instructions

40

Содержание Super Sportster 120

Страница 1: ...ectly properly install all R C components and flying gear engine tank pushrods etc and to test the model and fly it only with experi enced competent help in accordance with all safety standards and co...

Страница 2: ...KUPS AND CHECKS 38 PRE FLIGHT 39 CHARGE THE BATTERIES 39 FIND A SAFE PLACE TO FLY 39 GROUND CHECK THE MODEL 39 RANGE CHECK YOUR RADIO 39 ENGINE SAFETY PRECAUTIONS 39 AMA SAFETY CODE 39 FLYING 40 PARTS...

Страница 3: ...dmodel andnorepresentations are expressed or implied as to the performance or safety of your completed model Remember Take your time and follow di rections to end up with a well built model that is st...

Страница 4: ...elevator servos SUPPLIES AND TOOLS NEEDED 2 3 oz Thin CA Adhesive Pliers 2 oz Medium or Thick CA Adhesive Screw Driver 2 5 oz 5 Minute Epoxy T Pins 2 5 oz 30 Minute Epoxy Straightedge Hand or Electric...

Страница 5: ...x1 2 SCREW 6 x I SCREW NYLON HORN AND NUT PLATE RETAINER CUP 2 56 x 5 8 SCREW 5 32 COLLAR 1 4 20 NYLON BOLT 4 40x1 BOLT HOLES TO BE DRILLED 6 32 x 1 4 SCREW 10 32 SOCKET HEAD CAP SCREW BRASS AILERON H...

Страница 6: ...R DOUBLERS SS90W33 BALSA 3 32x4x18 8 PER KIT SS90W34 BALSA 3 32x4x18 3 PER KIT TAIL FEATHERS NOTE The Rudder Fin Elevators and Stabilizer are all built in a very similar manner The following section e...

Страница 7: ...y openjoints then useyour T bar with medium grit sandpaper to sand both sides of the rudder framework smooth 7 From the 1 16 x 3 x 36 balsa sheets cut four pieces 12 long Edge glue these pieces togeth...

Страница 8: ...wer front edge must not be rounded or V shaped instead just sand these edges flat BUILD THE ELEVATORS You ll need the following parts 4 1 8 die cut ply elevator filler EF pieces 1 4 x 3 4 balsa sticks...

Страница 9: ...ns Ifyou are buildingyourplane as ataildragger cut out the front notches in the W 2 ribs If you are building your plane with a tricycle gear cut out the rear notches Trim the die cut 1 16 ply doublers...

Страница 10: ...a notch for the W 1 rib Use the 1 8 die cut ply dihedral gauges DGR and DGL to position rib W 1 at the proper angle When building the right wing panel use dihedral gauge DGR to position W 1 setting th...

Страница 11: ...ting by sanding one edge to a slight bevel so it will fit snugly against the back of the leading edge Ifyou are building a taildragger carefully cut out an opening in the leading edge sheeting for the...

Страница 12: ...rib at this time D D 27 Carefully cut out the center portion of the W l ribs 1 8 in front and back of the spars tomakeroomfortheplywooddihedralbraces D 28 Now go back and repeat steps 5 through 27 to...

Страница 13: ...the photos Do not be concerned if the sticks break when they are bent around the curve Just glue them down and sand them to a rounded shape later D 2 Glue the top center section sheeting in place Note...

Страница 14: ...turbing D 6 Drill holes in the flattened portion of the brass horn for the clevis pin Note The proper size drill bit to use here is a 53 bit available at most hardware stores You may however use a 1 1...

Страница 15: ...rap the glass cloth around the trailing edge D 5 Working outdoors or in a very well venti lated area apply thin CA glue to the glass cloth Begin by running a bead of glue down the center ofthe glass c...

Страница 16: ...finally go back and complete the push in the original position Clean out the slot with the slotting hook D 9 IMPORTANT Condition or break in the hinges by folding them tightly back and forth several t...

Страница 17: ...e front edge of the fuse side A good way to do this is to carefully align the fuse doublers and while holding in position apply thin CA glue around the notches and lightening holes then around the edg...

Страница 18: ...he hold down block D 10 Position former F 4 in place between the lines on the aft deck base and center it side to side Glue F 4 to the aft deck base while using a draftsman s triangle or carpenter s s...

Страница 19: ...in the front of the fuse doubler at the end of the engine mounting rail slots 18 If you plan to use the hardwood engine mounting rails supplied in this kit trial fit the rails through the openings in...

Страница 20: ...will adhere D 2 Use an Xacto knife to sharpen one end of a piece of 3 16 outside diameter brass tubing then use this tubing to cut the pushrod exit holes Determine the location of these holes from the...

Страница 21: ...ne up with F 2 and the front ofthe wing saddle area Position the chin block so it protrudes 1 8 behind the rear surface of F 2 and so the centerline of the chin block lines up with the centerline of t...

Страница 22: ...he holes in the wing only to 1 4 D 14 Use a 1 4 20 tap and a tap wrench to cut threads in the ply hold down blocks in the fuselage Note To help get the tap started straight you may keep the wing in pl...

Страница 23: ...nd nuts D 4 Install the blind nuts in the bottom of the hardwood rails Note that part of the blind nut flanges protrude into the engine mounting area Trial fit your engine to find out if the protrudin...

Страница 24: ...tank support Adjust the position of the tank up or down by adding foam as necessary until the center of the tank is approximately at the same level as the fuel intake on the carburetor D 4 Drill hole...

Страница 25: ...ce of F 2D D 5 Glue F 3A to F 3B and F 6A to F 6B D 6 Lay the F 6A and F 6B assembly on the F 6 detail drawing and mark the location of the center of each rear stringer on F 6A D 11 Glue the 3 8 balsa...

Страница 26: ...straightedge and an Xacto knife trim the sheeting along the center of the top stringer D 4 Apply thick CA to the tops of the formers and stringers apply glue only to 1 2 of the top stringer then imme...

Страница 27: ...kplate fully against the thrust washer be cause the chin block is slightly too long Re move the spinner backplate and using a sand ing block sand the front of the chin block slightly Repeat this proce...

Страница 28: ...er filler block the chin block and to the engine mounting rails if applicable 10 Cut pieces of 1 2 balsa triangle to fit in the corners of the engine compartment where shown and glue in place SAND THE...

Страница 29: ...ng block in position pushing down to imprint the locations of the 1 16 ply wing hold down plates on the fairing block Carve the fairing block to clear the wing hold down plates D 5 Make a 1 2 deep saw...

Страница 30: ...fuse and the stabilizer D 5 Accurately measure the trailing edge of the stabilizer and mark the center point D 6 Temporarily mount the wing in the saddle for reference D 7 Lay the stab in position on...

Страница 31: ...2 teaspoon glob of this thickened epoxy on the glass cloth in the middle of the aft deck base then immediately take the tapered 1 4 plywood block and press it in place on top of the glass cloth as sh...

Страница 32: ...ck CA glue per block D 6 Temporarily attach the elevators and rudder to check their fit and operation IMPORTANT NOTE When making the tricycle version you ll have to install a 4th rudder hinge in the l...

Страница 33: ...to the fuse doublers and to the bottom edge of the 3 8 balsa hood sides in the area between F 3 and the 1 4 balsa cross brace D 2 Lay the two 3 16 x 1 2 x 4 3 32 ply servo rails on the rail supports s...

Страница 34: ...you wish you can use solder clevises for the pushrod to servo linkage here D 6 Unscrew the metal clevises re insert the pushrods and replace the clevises Remove the servo wheels and work the Z bends...

Страница 35: ...a flat table to sand the pants down to the trim line D 2 Clean the wheel pants halves with a tissue dampened with alcohol D 3 Lightly sand the inside of the wheel pants with fine sandpaper D 6 Cut the...

Страница 36: ...not be covered and which may be exposed to glow fuel residue such as the landing gear block slots and the wing saddle Use epoxy thinned with alcohol polyester finishing resin or fuelproof paint BALAN...

Страница 37: ...plastic soda straw then pinch the end of the straw insert it into the hinge slot and squeeze the straw to force glue into the slot Apply epoxy to the hinge then insert the hinge into the slot After p...

Страница 38: ...ches to 4 inches back from the leading edge This is the balance point at which your model should balance for your first flights Later you may wish to shift the balance up to 1 2 forward or back to cha...

Страница 39: ...RANGE CHECK YOUR RADIO Wherever you do fly you need to check the operation ofthe radio before every time you fly This means with the transmitter antenna down and the receiver and transmitter on you sh...

Страница 40: ...e downwind leg of the landing approach This will automatically help to bleed off some of the speed If you have trouble getting your big engine to idle down slow enough to land at a comfortable speed w...

Страница 41: ...Rails 3 Ply 1 32x 1x1Spinner Ring Spacer 3 Ply 1 8X3 8X3 5 8Servo Rail Supports 5 Ply 1 4x1x1 Stab Reinforcement Block 5 Ply Shaped 1 4 Front Stab Brace 5 Ply 1 4x1 2x6 Rear Stab Brace Hardwood 5 16Di...

Страница 42: ...x 12 3 4 Front Stringers SS90F23 1 Hardwood 1 4 x 1 4 x 19 3 4 Top Rear Stringer SS90F24 8 Hardwood 3 16x3 16x19 3 4 Rear Stringers PART QTY DESCRIPTION SS90A12 SHEETING BalsaShaped1 8Aft SS90F02 SS90...

Страница 43: ...ard end of the surface It is the com bination of these two design features which pro duces control surface flutter and once you have them there is a speed at which you will have make the control surfa...

Страница 44: ...ded for ease of installation struc tural integrity and the ability to change weights What you must do is get the balance weight large enough to cause the control surface to bare ly move up when it is...

Страница 45: ...h sides of the fuselage and place the airplane upside down on the balancing stand as shown in the sketch empty fuel tank Move the airplane forward or aft on the stand until it balances with the stab l...

Отзывы: