Please take a few moments to read this instruction manual before beginning assembly. We
have outline d a fast, cle ar and easy method to assem ble this aircraft and familiarizing
yourself with this proce ss will aid in a quick, easy build.
Please read the following paragraph before beginning assembly
of your aircraft!
THIS IS NOT A TOY! Serious injury, destruction of property, or even death may result
from the misuse of this product. Extreme Flight RC is providing you, the consumer, with
a very high quality model aircraft component kit, from which you, the consumer, will
assemble a flying model. It is beyond our control to monitor the finished aircraft you
produce. Extreme Flight RC will in no way accept or assume responsibility or liability for
damages resulting from the use of this user assembled product. This aircraft should be
flown in ac cordance with th e AMA safety code . It is highly recommended that you join
the Academy of Model Aeronautics in order to be properly insured and operate your
model at AMA sanctioned flying fields only. If you are not willing to accept ALL liability
for the use of t his product, please return it to the place of purchase immediately.
Extreme Flight RC, Ltd. guarantees this kit to be free of defects in materials and
workmanship for a period of 30 DAYS from the date of purchase. All warranty claims
must be accompanied by the original dated receipt. This warranty is extended to the
original purchaser of the aircraft kit only. Extreme Flight RC in no way warranties its
aircraft against flutter. We have put these aircraft through the most grueling flight tests
imaginable and have not experienced any control surface flutter. Proper servo selectio n
and linkage set-up is absolutely essential. Inadequate servos or improper linkage set up
may result in flutter and possibly the complete destruction of your aircraft. If you are not
experienced in this type of linkage setup or have questions regarding servo choices, please
contact us at info@extremeflightrc.com or 770-887-1794. It is your responsibility to
ensure the a irworthiness of your model.
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Items needed for completion:
Masking tape.
Hobby kn if e with #11 blade s.
Thin and medium CA. We highly recommend Mercury M5T thin and M100XF
medium formulas as well as the Mercury glue tips.
30 minute epoxy.
Blue Loctite.
Electric drill with an assortment of small drill bits.
Small flat head and Phil lips head screw drivers.
Standard and needle nose pliers.
Side cutter.
Metric ball driver or allen key set.
Sanding block and sandpaper.
4 x METAL GEARED servos with a minimum of 76oz of torque. All flight testing
was performed with Hitec HS-7245MH.
Dubro Long Super Strength servo arm set. (Dubro part #670 for Futaba, #671 for
JR and #672 for Hitec) .
2 x 6” Servos E xtensions for the Ailerons.
1 x 24” Servo Extension for the elevator servo
Torque 4016T /50 0 MKII Brushless Outrunner.
Airboss Elite 80 Amp ESC.
6S 3300-4000 mah LiPo battery.
16 x 7 prop.
Optional – Pacer c anopy glue and shoe goo adhesive.
3
Tips for Success:
1. Before starting assembly, take a few minutes to read the entire instruction manual
to familiarize yourself with the assembly process.
2. Note that this aircraft is covered using our printed covering technique. Your
aircraft has been sealed with a gloss clearcoat. Due to climate changes, wrinkles
may develop in the covering. These are easily removed with a little bit of heat. Use
your heat gun or a covering iron with a soft cotton iron sock, medium heat, and a
gentle technique. Just like regular covering, you can remove any wrinkles that
develop over the life of your aircraft, but go a little slower and be a bit more careful
for best results. Your iron will feel a bit different gliding over this sealed covering
than regular. Be careful not to use too much heat as the covering may shrink too
much and begin to lift at the edges. Take your time, and the beautiful glossy finish
can be easily maintained.
3. Apply a bead of Pacer Formula 560 Canopy Glue at the intersection of the plastic
canopy and its wood en fram e .
4. Take a few minutes and apply CA to high stress areas such as servo mounting trays,
landing gear mounts, ant i-rotation pin s, and motor b ox joints.
5. By the time your air craft arrives at your door step, it will have been handled by a lot
of people. Occasionally, there are small dings or imperfections on some of the
surfaces. An effective method to restore these imperfections to original condition is
to use a very fine tipped hypodermic needle and inject a drop of water under the
covering material and into the ding in the wood. Apply heat to the area with a
sealing iron and the imperfection will disappear. Deeper marks may require that
this process be repeated a couple of times to achieve the desired result, but you will
be surprised at how well this technique works.
6. Use a high quality epoxy for installing the composite control horns. We highly
recommend a 30 minute Epoxy or Pacer Z-poxy.
7. Take the time to properly balance and trim your aircraft and set up rates and
exponential values. Your flying experience will be greatly enhanced once your plane
is properly dialed in.
NOTE: Some photos in this manual use another of our 50E aircraft, but all of our 50E
sized aerob atic aircraft assem ble nearly identically.
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Let's begin!
1. Locate the 2 wing panels as well as the composite aileron control horns. Use a
soldering iron or sharp hobby blade to remove the cover ing over the se rv o ope n ing
and the slot for the aileron horn. Make sure you are doing this on the bottom of the
aileron!
2. Use sandpaper to scuff the portion of the horn that will be inserted into the aileron.
Glue the horn into the aileron as shown, making sure adequate epoxy is in the slot for a
good bond. Wipe away any excess epoxy with a cloth soaked in denatur ed alcohol.
5
3. Flex the aile rons fully up and down, check for free action.
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4. Making sure the aileron is properly aligned between the wing root and wing tip,
hold the aileron fully deflected and apply a few d rops of thin CA to each hinge. Flip
the wing over and repeat.
5. Before installing the aileron servo, take a minute and apply some CA to the servo
tray and the anti-rotation pins.
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6. Before moving to the next step, it would be a good time to seal the hinge gap with
a strip of Ultracote or Blenderm tape. Be sure to fully deflect the control surface
when sealing the gap to allow for full deflection once the gap is sealed.
Sealing the hinge gaps on your model improves control feel and response, but it is
important that the seal not create too much drag, leading to poor servo
performance. Make sure you ailerons, and any surfaces you seal, move freely after
sealing.
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7. Attach a 6” servo extension wire to the aileron servo, and make sure it is secured
with tape or heat shrink or a lock. Use the manufacturer supplied mounting
hardware to install the servo as shown. Electronically center the servo and install the
second longest servo arm from the Dubro servo arm kit.
Locate 2 of the short threaded metal pushrods and 4 ball links along with 4 x 2mm
screws, nuts and washers. Thread the ball links onto each end of the pushrods and
secure to the bottom of the servo arm and to the control horn as shown in the picture
below. Repeat this process for the other wing half. Clean the wing panels with a soft
cloth and put them away.
9
Fuselage Assembly
8. Locate the 2 axles, 2 locking nuts, 2 wheels, 2 whe el collars and 2 wheel pants.
Place the wheel on the axle and secure with the wheel collar.
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