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retract mechanism. Cut a clearance slot in rib W-3 for the LG

wire. Cut an opening in the bottom LE sheet and in rib W-2

FUSELAGE ASSEMBLY

for the wheel well.

3. lEnclose the wheel well by running vertical grain

1/16" balsa between the bottom and top sheeting; or you may

make the wheel well from an appropriately-sized styrofoam

cup.

of the spars) for your retract servo, and bend and fit a pushrod

to run between the servo and the retract mechanism. Run the
pushrod just under the top LE sheeting until it passes over the

wheel well, then make two 90-degree bends and connect it to

PREPARE FUSE SIDES

1. Lay one of the shaped 3/16" balsa fuselage sides in

place on the fuselage plan side view. Carefully position the

fuse side so the front edge lines up with the front ofF-1 on the

plan. Tape or pin the fuse side so it can't move. NOTE: The
fuse side may be a little longer at the rear than indicated by the
plan. This is as it should be.

the retract mechanism.

5. Temporarily mount yourretract servo and trial fit all

  retract components. Test the operation of your retracts

making sure they operate freely and reliably. Also make sure

2. Carefully position the die-cut 3/16" balsa lower

front fuse side so the rear edge lines up with the front of the
wing saddle opening on the plan (the rear edge ofF-2A). You
may have to lightly sand the top edge of the die-cut 3/16"
balsa for a good fit against the bottom edge of the fuse side.
Edge glue the lower front fuse side to the fuse side. NOTE:
Use waxed paper under the balsa to avoid gluing to the plan.

they "lock" in both the up and down positions.

3. Carefully position the die-cut 3/16" balsa lower

rear fuse side so the vertical front edge lines up with the rear
of the wing saddle opening on the plan (the front edge of
F-4). Edge glue the lower rear fuse side to the fuse side.

Photo shows finished wing with retract installed.

6. Blend the bottom sheeting as neatly as possible

around the retracts.

4. Trim and sand off the die-cut "bumps" from the

front and rear portion of the lower rear fuse side, blending
with the upper fuse side.

1. Use polyester resin or 30-minute epoxy thinned with

alcohol to fuelproof the entire retract well area.

5. Sand the fuse side smooth on both sides using a T-

bar and 100-grit sandpaper, then repeat the above steps to
make the other fuse side.

18

Summary of Contents for ULTRA SPORT 60

Page 1: ...shrods etc and to test the model and fly it only with experienced competent help using common sense and in accordance with all safety standards as set down in the Academy of Model Aeronautics Safety C...

Page 2: ...Tubes 22 Mount the Wing to the Fuse 23 Fit Fuel Tank Fuelproofing 25 Install Turtle Deck 25 Assemble Nose Section 27 FINAL ASSEMBLY 30 Sand Fuselage 30 Install Wing Fairings 30 Install Wing Fillets 3...

Page 3: ...Sport 60 is an excellent choice 4 You mustproperly install allR C and othercomponents so that the model operates properly on the ground and in the air 5 You must test theoperation ofthe model before t...

Page 4: ...dragger configuration OTHER ITEMS REQUIRED Four channel radio with 4 servos additional channel and retract servo required if retracts are being used Propellers see engine instructions and above engine...

Page 5: ...5 DIE DRAWINGS Use this drawing to help you identify the die cut parts...

Page 6: ...block sand both sides of the fin smooth Then sand the leading edge and top edge to a rounded shape as shown on the plan Draw a centerline along the trailing edge of the fin to mark the hinge line 5 G...

Page 7: ...the 1 8 wire elevator joiner 2 Glue the stab front to the stab rear Then glue on the stab tips Sand the frontofthe stab tips to blend with the stab 3 Glue the elevator ends to the elevators and sand t...

Page 8: ...e the slot it in using 5 minute or 30 minute epoxy Work plenty of epoxy into the holes with a toothpick then lay the elevator leading edges along a straightedge to insure perfect align ment by folding...

Page 9: ...t side ofthe ribs as shown on the plan make a right and a left set Sand the doublers even with the edge of the ribs 8 Prepare the leadingedgesheeting as follows Edge glue the 3 32 x 1 x 13 balsa sheet...

Page 10: ...lied NOTE The narrow end of the TE jig is at rib W ll Pin the jig to the building surface all ribs are inserted into the LE notches Angle rib W l slightly using the dihedral gauge DG Glue W 1 to the T...

Page 11: ...a wet cloth masking tape and T pins Read through the following step and go through a dry run before actually gluing 24 Position the leading edge sheeting at the rear edge of the notched LE so there is...

Page 12: ...plan out your installation the LG block and to the 1 16 ply doubler on rib W 2 as shown on the plan and in the photo then epoxy the small hardwood block to the other end of the LG block and to the 1...

Page 13: ...f the 1 16 ply dihedral brace Slide the dihedral brace in place push the wing panels together and immediately proceed to the next step 35 Now go back and repeat Steps 9 through 34 to build 4 With the...

Page 14: ...The torque rod horns must exit the TOP of the wing FIBERGLASS THE CENTER SECTION 6 Slide the plastic bearings toward the threaded end of the torque rods then use a toothpick to apply a small amount o...

Page 15: ...spray adhesive should hold the cloth down to the surface but will permit you to lift and reposition the cloth if you make a mistake Keep working forward along the top of the wing around the leading ed...

Page 16: ...g edge of the ailerons to the same 1 Draw an accurate centerline along the LE of the tapered balsa ailerons and the wing TE 2 Check the length of your ailerons against the actual 10 Insert the hinges...

Page 17: ...webs NOTE Try to drill straight in 5 Sand one end of each wing dowel to a rounded or pointed shape This is the end that will be inserted Do not sand the other end at this time notched LG blocks and sa...

Page 18: ...retracts making sure they operate freely and reliably Also make sure 2 Carefully position the die cut 3 16 balsa lower front fuse side so the rear edge lines up with the front of the wing saddle open...

Page 19: ...o the aft end ofone of the fuse sides and sand it even with the top and bottom edges 6 Find the two die cut 1 8 ply fuselage doublers and 10 From the 1 4 balsa triangle cut pieces to fit be 7 Edge glu...

Page 20: ...installed perpendicular to the building surface 8 Once you have everything fitting properly re as semble the above parts using clamps pins tape and weights toholdeverything togetherand flaton the work...

Page 21: ...it to make sure it will fit correctly before proceeding to the next step 14 Before installing the firewall F l you may drill F l for your engine mountand install the 6 32 blind nuts You may cut out th...

Page 22: ...rmers F 6 F 5 and F 4 1 inch high 2 Trim the 3 16 x 1 2 x 3 5 8 ply servo rails to fit between the fuse side doublers in the locations shown on the plan Temporarily mount your servos to the rails then...

Page 23: ...es flush with the front of F l 13 Cut the pushrod wires supplied to the required lengths and temporarily install the throttle and nose gear pushrods NOTE A 34 wire threaded one end is supplied for the...

Page 24: ...els for easier insertion into F 2A Mix up a batch of 30 minute epoxy use a long stick to work some epoxy into the dowel holes smear epoxy on the dowels then re insert the dowels into the wing leaving...

Page 25: ...ll the tank be sure tocushion itfrom vibration and prevent it from moving by surrounding the tank on all sides and front with latex foam rubber Leave a few inches ofextra fuel tubing in front of F l y...

Page 26: ...around the formers and onto the stringers HINT This requires about 5 sets of hands so use several long pieces of masking tape to pull the sheering together then working a small section at a time add C...

Page 27: ...ine from the centerline of F 3A to F 6A 1 Find the 1 4 x 1 4 x 10 balsa cockpit sides Cut offone end ofeach stick at an angle to fit the front edge of the backrest F 3A 2 Glue the cockpit sides to the...

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