JTA Innovations Edge JD 33 User guide

JTA Innovations 33” Edge JD

Please Read For Your Safety

The product that you have received is not a toy. Please understand that model

aircraft have several moving parts and equipment that if misused, can not only

cause harm to other materials and objects, but also to you and others around

you. JTA Innovations is not accountable or responsible for any events or

incidents that cause damage, injury, or even death. After purchase and

receiving of this product, the customer is fully responsible for the assembly

and use of the model. We cannot monitor the procedure/methods used in

assembling or flying of the model. If operating in the United States, please

make sure that you have membership with the Academy of Model Aeronautics

and follow AMA rules. Please operate the model at AMA flying sites. If living

outside of the US, please follow the rules of model aviation operation in your

region. JTA Innovations is not responsible for any disregard or breaking of

these rules. Prior to being shipped to each customer, airframes will be checked

for any damages. We have no control over what happens during the shipping

process. If any product is deemed defective by a customer, please contact JTA

Innovations with proof of defect (most likely photo or video), and proof of

purchase including purchase date. JTA Innovations will analyze your claim and

handle the situation case by case.

Tools/Supplies needed

Including but not limited to:

-Ruler

-Building Adhesive

-Foam safe CA or and regular CA

-Hobbyknife with blades

-Scissors

-Heat gun or lighter for heat shrink

-Assorted phillips and flat blade screwdrivers

-Assortment of small drill bits

-Drill

-Needle nose pliers

-Driver set

-90 degree square

-CA accelerator

-Sandpaper

- Wax Paper for a building surface

Airframe Description

Welcoming in the 4th year of JTA Innovations, the 33” Edge JD is a perfect

representation of how we have reached the pinnacle of aerobatic flat

foamies with both it’s flying characteristics and presentation. The Edge JD

offers every forgiving 3D characteristic that you could expect from an Edge

along with the all around precise performance you’d expect from a JTA

Innovations airframe. The abundance of side area allows for excellent knife

edge and precision flight while keeping the aggressive possibilities that we

have all been accustomed to with JTA Innovations airframes. The Edge JD

will be sure to complement whichever type of aircraft lineup you have with

it’s unique blend of looks and flying characteristics. Additionally, the

standard JTA Innovations construction technique is included on the Edge

which will provide several demanding flights indoors or outdoors.

Wingspan- 33” (6mm EPP)

Weight- Approximately 185-200g

Motor- T-Motor AM40, or AT2303 or 2304 or equivalent

ESC- 10-15amp (T-Motor AT12A available at JTA) or 16amp ESC for AM40

Servos- 7g-12g (Spektrum A3030, MKS HV6100, EMax ES08, JR E397, etc.)

Prop- 8”-9” (8” for 3S setup, 9” for 2S setup)

Battery- 350-800mah 2S or 3S depending on motor/ESC combo max cell

capabilities

Kit contents shown above (Extra JD shown for representation)

Below are lengths of control surface linkages. Linkages are

used from the provided carbon fiber rods.

Aileron linkages: 65mm (x2)

Elevator linkage: 365mm (x1)

Rudder linkage: 365mm (x1)

As shown above, the aileron bracing is done using flat

carbon fiber glued into the slots creating durability for the

aileron. Please see the carbon fiber diagram for your

airframe to determine which size carbon strips are to be

used.

Wing bracing shown above. The center wing spar is the

supplied carbon fiber square stock.

Cowl glued to the fuselage.

The horizontal piece of the fuselage also uses flat carbon

fiber spanning the entire length from the rear wing spar to

the horizontal stab spar.

Elevator flat spar and h-stab flat spar shown above.

Now that rigidity is established, it is very important to break

in the hinges by flexing them all the way over and weighing

them down. Let them rest for at least 60 minutes.

You can now prepare the bottom half of the fuselage. Test fit this into each slot

as shown above before gluing.

If deciding to place glue on the horizontal part of the fuselage, you can mark

out where the glue will be placed as shown above after test fitting the fuselage.

Using the marks that you just made, place your glue along the fuselage.

It is extremely important to make sure that the bottom vertical part of the

fuselage stays 90 degrees to the horizontal fuselage while the glue is setting.

This can have a huge effect on the flying characteristics.

The provided EPP square may be useful during this process of gluing the

bottom fuselage piece.

Now that the bottom fuselage piece is glued into place, you can locate the

carbon fiber rods used for the wing bracing. Shown above is the wing joiner

used to guide the wing bracing. Some airframes may have a larger gusset or

joiner that overlaps the leading edge. You will also find dots towards the tip of

each wing to determine where to glue the carbon rods. The same goes for the

location on the bottom part of the fuselage. There should be four total carbon

rods for wing bracing. Two will be used on each wing. Lengths can be found

on the carbon fiber diagram.

Above is a photo of what your gusset may look like depending on your

airframe. Also some of the completed carbon fiber rod construction is shown

above.

Shown above is the wing bracing glued into the bottom part of the fuselage.

Just like the aileron bracing, it is very important to use weight towards the

wing tip while the carbon wing bracing is set up to keep the leading edge of

the wing as straight as possible.
Shown above is one of the carbon fiber landing gear legs that come pre-glued

to the axle. The larger of the two EPP foam circular collars will slide on first.

No need to apply glue to anything quite yet.

Next, with no glue needed, slide one of the wheels on to the axle all the way up

to the first foam collar. Make sure it is spinning freely.

Now locate the plywood/carbon fiber laminated collar to slide up next to the

plastic wheel. Once again, do not apply glue yet as the tire will need to spin as

freely as possible around the axle.

Locate the smaller of the two circular foam collars to slide onto the axle next.

Lastly, locate one of the wheel pants. You can place a bit of adhesive on the

last foam collar before sliding the wheel pant on to the axle. If desired, you can

place some adhesive on the outside of the wheel pant where the carbon fiber

axle ends.

Shown above are both landing gear legs in place. You will find the slots cut in

the side of the bottom of the fuselage to slide each landing gear leg into. Make

sure that the bottom of each leg is placed to where the airplane will sit level on

the ground. Also shown are the first two carbon braces on the front of each

side of the bottom of the fuselage.

Locate the EPP landing gear cover that will be placed over the carbon fiber

landing gear leg. Test fit this piece, then glue it on over the carbon fiber using

the pre-cut slot.

Shown above is the bottom fuse bracing for the rear of the fuselage. Lengths

found in diagram.

Shown above is the rest of the bottom fuselage bracing up to the wing bracing.

You should be able to notice the dots marked to help guide where each rod will

be placed. Lengths found in diagram.

Above is the other side of the fuselage carbon fiber arrangement.

Locate the short flat carbon fiber piece that will be used as the tail piece for

taxiing, taking off, and landing.

Glue the tailpiece into place as shown above while making sure that it is on the

same angle of the bottom of the fuselage to ensure that the airframe will sit

level.

You can now prepare your servo arms. Above is the provided double arm to

be added on to the aileron servo arm that comes with the servo. Using the

extension will provide the maximum amount of aileron throw. To join the two

arms, use carbon fiber rods as shown above and glue them in through the

holes lined up on each arm. It is important to use regular CA for this. You can

then cut each rod down to shorten them.

Before placing the servo arm on the servo, locate the mini EZ connector.

These connectors will be used to secure the linkage to the servo arm. Slide the

top metal piece into the end of the servo arm and then fasten the bottom

plastic piece through the pin. You may want to put a bit of CA on the bottom

of the pin and plastic piece to provide the most possible strength. The mini EZ

connector will allow you to center your surfaces mechanically to reduce the

need for subtrim. The top screw will be used to tighten down on the linkage

once the center is found.

After you electronically center your aileron servo by plugging it into your

receiver and powering it on with zero sub trim and trim, you can glue it into

the servo slot that is the most forward on the airframe with the output shaft

facing rear. The aileron servo arm will be angled forward.

Shown above is the glued in elevator servo. For the elevator, use the middle

servo slot that is on the side of the fuselage. The arms used for the elevator

and rudder servos are the singles. For both the elevator and rudder servos,

face the output shaft towards the rear.

Shown above is the rudder servo mounted in the furthest rear servo slot.

Locate the control horns in the provided kit. You will find three longer horns

and one shorter one. Two long ones will be used for the ailerons and one long

horn for the rudder. The shorter one will be used on the elevator. You will

notice a cutout on the bottom of the elevator horn that will fit over the

elevator spar.

Shown above is one of the aileron horns in place on the top of the aileron.

Locate the carbon fiber rods to be used for the aileron linkages (lengths shown

in diagram). This will be cut and used for the two aileron linkages. Also locate

the straight metal piece as shown above. Use regular CA to glue these two

together. The straight metal piece will be what slides into the mini EZ

connector on the servo arm of the aileron. The metal Z bend provided in the

kit will be glued to the opposite end of the linkage and fit into the control

horn. *Make sure to cut your heat shrink and place it on to the linkage before

glueing the Z bend and straight end.*

Shown above is the entire aileron linkage assembly for one aileron. Notice the

heat shrink over each glued end, as well as the straight end clamped into the

mini EZ connector on the servo arm.

Shown above is the elevator linkage. Notice how the 4 guides are slid over the

linkage and the heatshrink is cut and slid on before the Z bend is glued. The

rudder linkage will be done the same way later on. You will be able to tell

where the guides will need to be glued in based on the slots in the fuselage.

Above is another view of the elevator linkage setup.

Above is the finished elevator linkage setup with the guides glued into the

fuselage and the elevator centered and clamped into the mini EZ connector.

Also shown is the elevator control horn. It may be easier to glue the horn in

after the linkage is assembled since the linkage is set up underneath the

fuselage.

Once the aileron and elevator linkages are set up, use the same process as

glueing the bottom of the fuse to glue the top of the fuselage into place. Once

again, it is important to keep this as straight as possible.

Now that the top of the fuselage is glued in, you can glue the other rear carbon

fiber rods to help strengthen the tail as shown above. They will be mounted

from the bottom of the horizontal tail to the rear of the bottom vertical

fuselage. Make sure they are glued in a location that allows for full down

elevator throw.

Shown above is the carbon rod that will go on each side of the fuselage. It will

be used to strengthen the horizontal stab and vertical stab.

The final piece used for carbon fiber bracing will be the

rod used at the front of the airframe. Make sure that the fuselage is straight

while these pieces are setting.

You can now locate the final long control horn and glue it into the slot on the

side of the rudder. This will be used for the rudder linkage that will be

constructed in the same way as the one used for the elevator. Once again, the

length for that linkage is 365mm. The guides for the rudder linkage will be

glued into the top of the vertical fuselage.

Locate the motor mount as shown above. Test fit the motor mount to the front

of the fuselage by bending the attached tabs 90 degrees and sliding it on

without glue. Once test fitted, place adhesive on the inside of the motor mount

covering every spot, then place again on the front of the fuselage making sure

everything is flush and lined up correctly.

Notice above the plate glued onto the side of the fuselage. This can be used to

mount the electronic speed controller on the other side of the fuselage. The

two cutouts on the top and bottom of the plate is where the provided velcro

strap will slide through.

Shown above is the ESC mounted using the velcro strap and a supplied zip tie

is used to tie the ESC wires together.

The center of gravity and battery placement will depend on equipment used

and personal flying preferences. The long piece of velcro mounted above is the

location of the battery for this setup. To save space on the other side of the

fuselage, the battery connector is put through to the opposite side of the ESC

and receiver.

Shown above is the motor mounted to the provided motor mount.

If desired, locate the side force generators that will be glued into the

counterbalances of the ailerons. *Some airframes may require the SFGs to be

glued into different locations along the wing.*

Shown above are the pieces included for the stand assembly.

Message from Jase

Dear JTA Innovations customer,

The appreciation of you to express interest in our product is
highly valued. The foundation of this business was created on
passion for the hobby and is inspired by those who have helped
me experience it since I was a small child. I have been blessed
to meet several genuinely kind people in this hobby and I am
using this business to contribute my part to the cause of model
aviation. We hope that this purchase is a success for you and
that it brings the type of joy to you that only model aviation
provides. Please do not hesitate to contact us regarding any
type of question or concern. We are anxiously awaiting your
feedback on this product and I hope I will get the pleasure of
meeting you in person if I have not yet already. Once again,
thank you!

God bless,

Jase Dussia - Owner/Founder JTA Innovations, LLC