Extreme Flight EXTRA 300-E Bedienungsanleitung
EXTRA 300-E
58” ELECTRIC ARF
Instruction Manual
©Copyright 2007 EXTREME FLIGHT RC, Ltd.
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Congratulations on your purchase of the Extreme Flight RC Extra 300 58 inch Electric
ARF. This aircraft was designed to provide maximum performance and fun in a great
looking, lightweight, easily transported, fully aerobatic ARF aircraft. Using a powerful
and efficient brushless outrunner motor and speed controller and a single high discharge
5S1P Lithium Polymer battery (3300-5000 mah), the 58 inch Extra provides unlimited
precision and 3D aerobatic performance capability.
Great care was taken to design a light weight yet robust airframe. Expert engineering
and modern laser cutting methods in conjunction with a carbon fiber wing tube and
composite control horns keep weight to a minimum. Unique features such as the 2 piece
plug in wings mounted on a carbon fiber wing tube, pre-mounted canopy and spring
loaded canopy/hatch latch make for quick easy assembly and instantaneous access to the
interior of the plane and battery tray. The Extra also features a high quality set of carbon
fiber landing gear, PILOT X series helmet head pilot bust and detailed dash/instrument
panel. Getting the Extra in the air is quick and easy! The Extra can truly be assembled in
a couple of evenings-buy it on Friday, fly it on Sunday!
As with all Extreme Flight RC airplanes, fight performance is second to none! The
Extra flies precision aerobatics remarkably well and allows you to practice your IMAC
sequences almost anywhere. The long tail moment makes for a plane that tracks like a 2
meter pattern ship and the lightweight wings minimize over rotation in snaps. You’ll be
amazed at how well this thing flies the sequences.
Of course the Extra will perform all of the 3D moves with ease. Incredible yaw, pitch
and roll authority allow the Extra to obey your every stick command. Sport flyers fear
not! With reduced rates the Extra is a very easy plane to fly. Its super light wing loading
allows it to land at a walk. It will instill confidence and allow you to improve your flying
skills. When you’re ready for more advanced aerobatics, flip the dual rate switch and
hang on!
As with any high performance aerobatic aircraft, great care must be taken to avoid
excess speed. Excess speed could lead to control surface flutter and quite possibly the
complete destruction of your aircraft. Don’t let this happen to you! Always have the
motor at idle when the airplane is pointed down and reserve full throttle for vertical
climbs. Make sure you have adequate mechanical advantage in your control linkage set-
up. If you are unsure about this, have a more experienced flyer look over your set-up
before flying. Extreme Flight RC, Ltd. in no way warranties its aircraft against flutter.
As with all of our planes, we put the Extra through a rigorous flight testing regime and
have not experienced any control surface flutter. It is your responsibility to ensure the
airworthiness of your aircraft.
The 58 inch Extra was designed around the new Torque Revolution 4014T/570
Brushless Outrunner motor and Airboss Elite 80 Amp ESC with SBEC. This is the best
choice for powering the Extra, providing plenty of power for any maneuver imaginable.
Other outrunner motors in this class will work as well but may require slight modification
to the motor mount. We also recommend the use of the Hitec HS-5245mg digital mini
servo for aileron and elevator. The standard HS-225MG is also a good choice. We used
a standard size digital servo for rudder (Hitec HS-5475). The HS-475 is also a good
choice. Please take a few minutes to read this manual before beginning assembly to get
familiar with the process.
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Tips for Success-Please read before beginning assembly!!!
1. Read the instruction manual thoroughly before starting assembly.
2. We are very pleased with the level of craftsmanship exhibited by the workers
in our factory. However, these are mass produced models. As with any ARF,
take a few minutes to go over the model and add CA to high stress areas or
any joints that appear to need more glue. Specific areas to pay attention to are
servo mounts, landing gear mounting plate, firewall to fuselage side joint,
wing root rib and motor box joints. A few minutes and a few drops of CA
will help to insure the longevity of your model.
3. Make sure your prop and spinner are balanced! These aircraft perform as well
as they do because they are built light. Excess vibration caused by unbalanced
components can cause damage to the airframe.
4. Buy a Watt meter! For less than the cost of a single battery pack you can
purchase one of these. This will save you a lot of time, money and frustration
and provide you with a lot of valuable information about your set up. One
battery pack saved is worth this investment!
5. Observe the C rating of your batteries. For example if your battery is rated at
2100 mah and 20C continuous discharge rate then you can safely pull 42000
mah or 42 Amps from it (2100 x 20= 42000 mah=42 Amps). Use a watt
meter between your battery and ESC to determine the number of Amps you
are drawing as well as the number of Watts you are generating. I have found
it is best for battery longevity if your maximum amp draw at wide open
throttle is in between the continuous rating and the burst rating of the battery.
Prop your airplane accordingly.
6. We have done a lot of experimenting with various props. Using the Torque
4014T/570 on 5S we like the APC and XOAR 14X7 and 15x8. Depending on
your elevation you may or may not like these choices, but they should be a
good starting point. Remember to test each new prop with a Watt meter
attached to the system to be sure you are not overworking any of the
components.
7. Decals- clean your airplane with glass cleaner and a paper towel before
starting to apply the decals. Mist the area where the decal will be applied with
glass cleaner or water mixed with a little bit of soap. Use scissors to remove
the decal from the sheet. For best results cut as close to the edges of the decal
as possible. Position the decal in place and use a credit card or rubber
squeegee to push the excess liquid from under the decal and allow to dry.
You may need to secure the edges of the decal with masking tape to prevent
them from rolling up until the solution has dried and evaporated.
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Wing assembly
1. Locate one of the aileron control horns and its mounting base. Remove one of the
ailerons from the wing, making sure to keep track of the CA hinges
2. Use a sharp hobby knife to open the slot for the aileron control horn on the bottom
of the surface. Insert the control horn into the base and into the slot in the aileron.
Use a fine tipped felt marker to outline the base of the control horn.
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3. Remove the control horn and use your knife to remove the covering where the
base will be glued.
4. Scuff the part of the control horn that will be glued into the aileron slot with
sandpaper. Mix up some 30 minute epoxy and apply to the slot and control horn
and its base. Insert the control horn and base into the slot and push down until the
horn is properly seated against the base and aileron surface. Wipe any excess
epoxy away with a paper towel and some denatured alcohol.
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5. Place the aileron back on the wing, making sure the hinges are centered between
the aileron and wing. Deflect the control surface to full deflection. Use thin CA
and a fine tube applicator to apply a couple drops to each hinge. I’ve recently
become a convert to the new Mercury adhesives and the M5T thin viscosity
formula works great for CA hinges. Mercury also sells an assortment of Teflon
tips which make the application of just the right amount of adhesive very easy.
The assortment includes a very fine tip which is ideal for the thin viscosity CA.
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6. Remove the covering from the aileron servo bay and install the servo using the
manufacturer supplied servo mounting hardware. Position the servo as shown in
the picture. You will need to attach a 6 inch servo extension to the aileron servo.
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7. Locate the threaded aileron pushrods, 2 ball links, 2 screws, 2 nuts and 2 washers
that make up the aileron linkage.
8. We highly recommend the use of the Dubro heavy duty control arm set for the
Extra, Dubro part number 670 for Futaba, 671 for JR, and 672 for Hitec. For the
aileron linkage we will use the 1.14” (28.9mm) arm. Electronically center the
servo arm. Thread the ball links onto each end of the pushrod. Attach the
pushrod to the servo arm and control horn using the supplied screws, nuts and
washers as shown in the photo.
9. Repeat this process for the other wing and the wings are finished and ready for
flight!
Fuselage Assembly
10. Let’s mount the landing gear first. Locate the 2 carbon fiber landing gear legs, 4
3mm mounting bolts and washers, 2 main wheels, 2 axles and retaining nuts, 2
wheel collars, 2 wheel pants, 2 landing gear fairings and the 2 plywood mounting
plates.
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11. Before mounting the landing gear, take a minute to wick thin CA into all
joints of the landing gear mounting area, both internal and external. Slide the 2
main landing gear legs into position from the side under the retaining lip. Secure the
legs with the 4 3mm bolts, using a washer on each bolt. Be sure to use a drop or two
of blue Loctite on each bolt.
12. Slide the landing gear fairings onto the gear and affix to the fuselage with silicon
glue or rubberized CA. You may need to open the slot in the fairing slightly for
correct fit.
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13. Glue the plywood mounting plate in the center of the wheel pant opening with 30
minute epoxy. Scuff the inside of the wheel pant with sandpaper before gluing.
Once dry use a rotary tool to open a slot in the wheel pant using the slot in the ply
plate as a guide. It should be big enough to slide over the threaded portion of the
axle.
14. Place the wheel on the axle followed by the wheel collar. Slide the wheel pant
over the axle with the retention ring inside the wheel pant. This ring will keep the
wheel pant in place with friction. Insert the threaded portion of the axle into the
hole in the end of the landing gear leg and secure with the nylon insert lock.
Please see picture for detail.
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