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Dynaflite DYFA3030, Instruction Manual

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Dynaflite DYFA3030 Instruction Manual Download Page 17

17

❏

2. Glue 

F2D

to 

F2

with medium CA.

❏

3. Laminate the three 

F1

firewalls with 30-minute epoxy.

❏

4. Lay the 1/8" die-cut 

right fuselage side 

over the

plan. Mark the location of formers IP, F5, F5A, and F7
on the inside of the right fuse side. Place the 

left

fuselage side 

above the right side as shown in the

photo and transfer the marks to the top of the left side.

NOTE: 

There are notches in the fuselage sides to

locate formers F2, F3, F4 and F6.

❏

5. Locate the two 1/8" x 1/2" x 42" balsa 

top

longerons

. Glue one to the inside of the left fuse side

along the top edge beginning 3/8" back from the
front. Cut the longeron at the notch for the stabilizer
and glue the remainder of the 1/8" x 1/2" stick
along the stab cutout. Glue the other longeron to the
inside of right fuse side beginning 19/32" back
from the front. 

❏

6. Glue the two 1/8" die-cut balsa 

wing saddle

doublers

to the inside of the fuselage sides. Align

them with the wing saddle.

❏

7. Locate the two 1/8" x 1/2" x 24" balsa

bottom longerons

. Glue one to the inside of the left

fuse side along the bottom edge, aligning it at the aft
edge of the wing saddle doubler. Glue the other to
the inside of the right fuse side.

❏

8. Glue formers 

F2

and 

F3

to the inside of the left

fuse side. Use a triangle to insure that the formers
are perpendicular to the fuse side.

❏

9. Fit the right fuse side to F2 and F3, sighting across

the top of both sides to align them. When satisfied with
the alignment, glue the right fuse side in place.

Summary of Contents for DYFA3030

Page 1: ...bility exceed the original cost of the purchased kit Further Dynaflite reserves the right to change or modify this warranty without notice In that Dynaflite has no control over the final assembly or material used for final assembly no liability shall be assumed nor accepted for any damage resulting from the use by the user of the final user assembled product By the act of using the user assembled ...

Page 2: ...a wide selection of power plants from a 75 two stroke to a 25 cc gas engine With an airplane this large and a power plant selection this broad there are a few problems that may come up If you use a light 75 two stroke you will need to add weight to the nose A 91 4 stroke will balance very closely With a gas motor like the US Engines 25cc you will need to add weight in the tail At Dynaflite we take...

Page 3: ...ber below Academy of Model Aeronautics 5151 East Memorial Drive Muncie IN 47302 800 435 9262 Fax 765 741 0057 1 You must assemble the plane according to the instructions Do not alter or modify the model as doing so may result in an unsafe or unflyable model In a few cases the instructions may differ slightly from the photos or plan In those instances the text should be taken as correct 2 You must ...

Page 4: ...ectors ailerons elevators 2 24 Servo extension wires gas only Cockpit and Accessory Kit DYFQ8110 We recommend Great Planes Pro CA and Epoxy 4 oz Thin CA Adhesive GPMR6004 4 oz Medium CA Adhesive GPMR6010 2 oz Thick CA Adhesive GPMR6015 CA Accelerator GPMR6035 CA Applicator Tips HCAR3780 6 Minute Epoxy GPMR6045 30 Minute Epoxy GPMR6047 4 oz Aliphatic Resin Glue GPMR6161 4 oz Milled Fiberglass GPMR6...

Page 5: ...e moderately strong There are three common types used thin medium and thick Thin cures the fastest but will not span gaps between parts Medium and thick are used where parts do not fit perfectly CA glue does not bond well to most plywoods and hardwoods CA glues are also brittle Aliphatic Resin Resin glues require that parts be pinned or clamped together while the glue dries typically 15 30 minutes...

Page 6: ...6 DIE PATTERNS ...

Page 7: ...7 DIE PATTERNS ...

Page 8: ...Laminate the two 1 8 die cut rudder TE1 pieces together Do the same for the TE2 pieces Glue the TE1 and TE2 pieces together over the plan After they are dry remove them from the plan 2 Laminate three 1 8 die cut rudder base pieces together 3 Pin three 1 16 balsa shims in place over the plans 4 From a 3 8 x 5 8 x 30 balsa stick cut and pin the rudder leading edge in place Glue the rudder base to th...

Page 9: ...e blocks in place 8 Sand both sides of the stab flat Radius the LE as shown on the plan 1 Laminate two of the 1 8 die cut balsa elevator trailing edge pieces together for each elevator 2 From a 3 8 x 5 8 x 30 balsa stick cut the elevator leading edge and also the root end of the elevator Glue these pieces together over the plan 3 Holding the laminated TE down on the 1 16 balsa shims glue it to the...

Page 10: ... the W1D doubler is toward the tip of the wing 5 Glue the rib with the W2D rib doubler onto the bottom spar Make sure the W2D doubler is toward the root of the wing 6 Glue the remaining W3 and W4 ribs to the spar keeping them 90 degrees to the work surface and aligned over the ribs on the plans NOTE Do not glue ribs W5 and W6 at this time 7 Glue the 1 4 x 3 8 x 36 basswood top spar into place 8 Fr...

Page 11: ...rface to shape the bottom of the TE 16 Pin the wing back onto the plan 17 Fit and glue the 3 32 x 1 2 x 36 balsa TE spar sheeting onto the bottom of the ribs from W1 to W5 18 Cut fit and glue the 3 32 x 15 16 x 36 balsa TE sheeting onto the bottom of the TE of the ribs from rib W1 to the last W3 NOTE The sheeting extends 3 8 past the rear of the ribs 19 From the 3 32 x 3 4 x 36 balsa sheet cut fit...

Page 12: ...nto the first 24 Sand the top of the LE to match the airfoil shape of the ribs 25 Glue the 3 32 x 3 x 36 LE sheeting onto the spar ribs and leading edge using medium CA Sand the tip edge flush with the tip side of W5 and the root flush with W1 26 Using a 3 32 x 3 x 24 balsa sheet glue the center sheeting from the W1 rib to the first W3 rib 27 From 3 32 x 3 8 x 30 balsa sticks fit and glue the cap ...

Page 13: ... glue the top rear wing tip pieces WT2 and WT3 in place Pinch them together along the outside edge 33 From a 3 32 x 3 8 x 30 balsa stick cut fit and glue the cap strips to rib W6 and WTR1 between ribs W5 and W6 34 Unpin the wing from the building board Cut slots 1 16 wide in front of and behind the spars in rib W1 Being careful not to damage the sheeting make a 1 16 wide slot in front of the spars...

Page 14: ...board Make adjustments as necessary NOTE The dihedral angle is 3 1 2 degrees for each wing half but this is not at all critical It is however important that the joint at the root ribs fits well and that the dihedral braces are solidly joined 4 Cover your building board with wax paper Coat the dihedral braces root ribs and spars with 30 minute epoxy wherever they will touch each other Fit the wing ...

Page 15: ...tly above the servo lead tubes From the top of the wing enlarge the holes in the sheeting to 1 2 diameter centering the holes above the paper tubes Cut matching 1 2 holes in the servo lead tubes 11 Use a 3 32 x 3 x 24 balsa sheet to cut fit and glue the center sheeting between ribs W1 and the first W3 on both wing halves Cut a 3 4 wide strip in the sheeting above the landing gear block from the ro...

Page 16: ...it to length before gluing it in position 4 Fit and glue the hinge blocks in place using leftover 1 4 x 3 4 balsa 5 Glue the frame made in step 2 to the top of the aileron aligning the TE of the frames to each other 6 Remove the aileron from the plan 7 Sand the assembly to the airfoil shown in the cross section on the plan 8 Build the other aileron by repeating steps 3 7 NOTE Before beginning cons...

Page 17: ... stabilizer and glue the remainder of the 1 8 x 1 2 stick along the stab cutout Glue the other longeron to the inside of right fuse side beginning 19 32 back from the front 6 Glue the two 1 8 die cut balsa wing saddle doublers to the inside of the fuselage sides Align them with the wing saddle 7 Locate the two 1 8 x 1 2 x 24 balsa bottom longerons Glue one to the inside of the left fuse side along...

Page 18: ...the firewall using 30 minute epoxy After the epoxy has cured you may want to pin the firewall to the fuselage with small dowels or toothpicks for additional security Drill several small holes through the sides and into the firewall Glue toothpicks into these holes with epoxy 13 Trim the right fuselage side flush with the firewall IMPORTANT During the following three steps place the fuselage over t...

Page 19: ... flush with the front of F1 and the rear of the instrument panel 19 Glue the 1 4 x 3 8 top stringer between F3 and F5A sanding it flush with the front of F3 20 Now is a good time to install the control pushrods of your choice 21 Using the 1 8 x 3 x 24 balsa sheets sheet the front top of the fuselage as shown in the photo NOTE You can trim the cockpit opening now or at step 23 22 Sheet the top of t...

Page 20: ... carve the assembly to shape When you are satisfied with your work remove the fairing blocks and shims from the fuselage Clean up the stab mounting area Before gluing the stab and fin to the fuselage you should first mount the wing to the fuselage This will allow you to more accurately align the tail section 3 Fit the wing to the wing saddle in the fuselage Lightly sand the saddle if needed for a ...

Page 21: ... centered fore aft in the plates 8 Remove the wing from the fuselage Tap the holes in the ply plates for the bolts Apply thin CA to harden the threads and tap the holes again 9 Locate the two 1 16 die cut ply wing bolt plates Glue these into position over the wing bolt holes with 6 minute epoxy Enlarge the wing bolt holes in the wing with a 1 4 drill drilling through the 1 16 ply plates 10 Glue th...

Page 22: ...en the fin is secure glue the fairing blocks into place 19 Fill in the area behind and in front of the stab with leftover balsa This area extends from the fuse to the fin and from the fuse to the stab 20 Locate the tailwheel assembly Attach the assembly to the fuselage using CA Use thin glass cloth to glass the tube to the 1 8 die cut ply tailwheel bracket Glue the 1 16 ply sides into place One go...

Page 23: ... fairings to the wire and to each other as shown Use Bondo filler to blend the assembly The gear should be ready to prime and paint but hold off until the cowl is ready NOTE To remove the wing when the Fly Baby is done unlatch the rear wire and rotate the gear forward then remove the wing When transporting the gear will keep the fuselage upright 26 Mount your engine using the mounting system you h...

Page 24: ...ou will need a refueling valve You will need to build a tank floor to mount the tank The kit includes a 1 4 x 3 8 x 36 basswood stick to make rails for the tank floor and for servo rails The floor can be made from leftover 1 8 ply material 32 With the engine and cowl still mounted let s do a quick C G estimate Tape the elevators and rudder into place Mount the wing If you are using a gas engine yo...

Page 25: ...mounted just aft of the firewall you will need a pushrod system 42 long If the servos are mounted at the TE of the wing you will need a pushrod system 28 long In either case Great Planes solid wire pushrods or Accu Glide Nylon Pushrods would work well 11 Install the throttle servo and connect the linkage to the engine 12 Finish the cockpit The cockpit area was designed to be structure free so you ...

Page 26: ... vibration caused by an unbalanced propeller Nuts and bolts can vibrate loose and vibration can damage delicate radio components inside your receiver and servos Vibration can even damage the delicate glow plug element which could result in an engine that is difficult or impossible to start Purchase a Top Flite Precision Magnetic Balancer TOPQ5700 or a Great Planes Fingertip Prop Balancer GPMQ5000 ...

Page 27: ...ce or eyes When you start and run the engine keep your face and body as well as all spectators away from the plane of rotation of the propeller Keep loose clothing shirt sleeves ties scarfs long hair or loose objects away from the prop Be conscious of pencils screwdrivers or other objects that may fall out of your shirt or jacket pockets Use a chicken stick or electric starter and follow the instr...

Page 28: ...le runway as you can Then gently apply some up elevator Your Fly Baby should slowly lift from the runway Continue straight ahead until you have accelerated to a safe flying speed The design of the Fly Baby aircraft originated in model aviation of the early 1930 s an era when aviation was in it s infancy The Fly Baby model was a high wing airplane that looked very much like the later full scale Fly...

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