Plantraco BUTTERFLY User manual

BUTTERFLY - LIVINGROOM FLYER
THE WORLD’S LIGHTEST READY TO FLY MODEL AIRCRAFT
Congratulations on your purchase of the
Plantraco Butterfly - the Lightest and Smallest
Ready To Fly R/C Model Airplane in the World!
Get Ready to pilot your Butterfly indoors in your liv-
ingroom, garage, office, or classroom. On dead calm
days, you can also fly outdoors in your backyard, but
the remarkable thing about this radio controlled fly-
ing model is that it can be enjoyed inside, no matter
what the weather is like outside.
The total flying weight of the Butterfly is about 4
grams, to put that in perspective, this instruction
manual weighs 3 times the weight of the Butterfly!
Hard to believe, but it’s a fact!
This low weight enables you to fly the Butterfly with-
out any fear of damaging the walls. You can fly it
around people so long as they are all paying atten-
tion to the flying model. Low weight also means
that the Butterfly has a tough time of damaging
itself in a crash most of the time - another advantage
of ultra low weight construction.
These instructions will tell you how to enjoy flying
your Butterfly. Please note that we have included
several videos on the included CD-ROM disc. If you
have problems understanding something in the man-
ual, watch the “video instructions” on disc or down-
load from
http://www.plantraco.com/hobbies/help.html
READ MEFIRST - IMPORTANT!
Before you pick up the Butterfly model in this case
you should read this manual or you will risk damag-
ing the Butterfly airframe structure!
The Plantraco Butterfly is a Toy for Big Boys.
Small Children can enjoy watching the Butterfly fly
but they should be instructed not to pick it up. Dogs
and Cats are likely to break it too. Be mindful of this.
If you damage your balsa airframe, replacements
are available from the plantraco website.
FINE PRINT
Battery discharging, charging, electric motors, spinning propellers,
and flying models all have the potential for serious injury to persons
and damage to property. In purchasing these products, the user
agrees to accept responsibility for all such risks, and not to hold the
manufacturer, distributors, or retailers responsible for any accident,
injury to persons, or damage to property.
PRODUCTS COVERED INTHIS INSTRUCTION MANUAL
• Plantraco RTF Butterfly - living room flyer
• HFX900 (HFX868 in Europe) Proportional R/C
Transmitter/Charger “R/C Air Model 1” -
Centering Throttle with 20mA rate 5mm Bahoma
(900Mhz-USA, 868Mhz-Europe)
• Micro900 0.4 Gram Butterfly Receiver
• FMS Flight Simulator Interface Cable and FMS Software CDROM
with Computer Models of the Plantraco RTF Models (FMS is a
freeware R/C Flight Simulator - bundled with permission from the
author - you can also download it and all the Plantraco FMS flight
sim model files from links at: http://www.plantraco.com/FMS
• LP30 - 30mAh Lithium Polymer Bahoma Cell (5mm standard)
CHECK FOR UPDATES TO THIS MANUAL ON OUR WEBSITE
http://www.plantraco.com/hobbies/help.html
PLANRITE TRADING COMPANY • 1105 8TH STREET EAST • SASKATOON, SK • CANADA • S7H 0S3
Web Page www.plantraco.com www.microflight.com Email [email protected] Orderline 306-955-1836 Fax [phone]
PLANTRACO.COM
Butterfly manual v0.7 Draft

GETTING STARTED
Add Batteries to Transmitter (See Fig. 2.5)
Remove the rectangular battery cover from the back of the Transmit-
ter. Insert 4 “AA” Alkaline batteries taking note of proper polarity of
positive and negative contacts (Negative end of the battery should make
contact with the “spring”).
Charge Lithium Polymer Rechargeable “Bahoma” Cell
The included lithium polymer cell features Plantraco’s Bahoma
(BAttery HOlder using MAgnets) connector (patent pending). The
Bahoma connector system uses strong plated magnets to hold the
battery onto the charger and onto the Micro9 Butterfly receiver. These
magnets are also used as electrical conductors. The terminals of the
Bahoma cell are protected from shorting to each other by a plastic
safety guard. (See Fig. 1)
On the front of the transmitter, slide the 3 position switch to the mid-
dle position to put the transmitter into it’s “Charge” mode. The LED
inside the charger door will be blinking rapidly. Slide the hinged
clear polycarbonate plastic charger door downwards to unlock it, and
then lift it open. Attach the Bahoma cell to the corresponding magnet-
ic terminals. The Bahoma cell will “click” into place on the charger by
magnetic attraction and with good electrical contact. The LED inside
the charger will now glow brightly. Close the clear charger door, and
slide it up to shut it with a small click. Your cell is now charging,
and when the bright LED goes out, the cell is fully charged and ready
for use. Charge time is about 60 minutes typically. The charger of the
Butterfly Transmitter is set to charge at about 20mA. (See Fig. 2)
Important Notes about Lithium Polymer Batteries
The lithium polymer rechargeable battery should not be used if it has
become swollen or has been physically damaged, crumpled, or cut.
Always use the supplied charger built into the transmitter. Always
charge the LP30 cell with the clear charger door closed. The supplied
lithium polymer cell can provide you with many discharge cycles
when used properly, but eventually it will require replacement.
Replacement cells are available from your dealer or from Plantraco
directly at www.plantraco.com. Always dispose of used or damaged
batteries appropriately
If you need to dispose of a damaged Lithium Polymer cell, you can
make a solution of about 2 cups of water and 1 cup of table salt in a
disposable container outdoors. Put the damaged cell in this concen-
trated salt water solution and leave it outside overnight. The damaged
cell may then be disposed of in the garbage safely.
Replacement cells are always available from your dealer or from the
plantraco website www.plantraco.com
2
Magnetic Battery Terminals
Plastic Safety Guard
Fig. 1. Bahoma Battery Connector
(patent pending)
Fig. 2 HFX900 Transmitter with Built-In Charger.
Magnetic Charger Terminals Charger LED
3 Position
Switch
Trimmer Wheels
-
+
Fig. 2.5 Insert “AA” Batteries with Correct Polarity
Fig. 2.6 Butterfly 3.6 Gram Living Room Flyer
All Up Weight is Less than a sheet of typing paper!

HANDLING YOUR BUTTERFLY
NOTE: Watch the video on the included CDROM for more
detail on handling, flying and maintennance of the Butterfly
Pick Up the Butterfly at the middle of the wing. Index finger on
the front (leading) edge of the wing and your thumb on the rear (trail-
ing) edge of the wing as shown in Fig. 3.
It is not good to pick it up by the tail or by one wing tip. Kids love
the Butterfly, but they will need some instruction on how to pick it up,
or they may damage it - this applies to adults too! This model can
withstand crashes quite well, probably the highest risk of damage
comes from handling by humans, so keep this in mind.
Once you have picked up the Butterfly, you can hold it along the fuse-
lage just behind the receiver as shown in Fig 4. This is a good posi-
tion for examining the model, attaching the battery, and for launching
the model into flight.
Adjustments to your Butterfly Your Butterfly has been test flown
by Plantraco technicians before shipping and it has been set up to fly
nicely indoors - right out of the box. You probably won’t need to
make any adjustments for your first flight.
Having said that, it is important for you to understand how to make
adjustments to the Butterfly to change it’s performance characteristics,
or correct problems caused by changes in the structure of the air-
frame from crashes and repairs etc.
For any adjustments to the airframe it is important to stabilize and
support the airframe with one hand and slowly move or squeeze the
other part. Slow, steady, monitored force is the way to adjust the air-
frame.
Wing Incidence and Tail length adjustments are made by sliding
balsa spars through paper tube supports. Always brace the airframe
by gripping the white paper tube, and then with steady pressure, the
rear pylon or the tail stick can be moved. See Fig 5
Propeller Thrust Line Adjustments are made by squeezing the gearbox
and giving it a slight bend in the desired direction. In general, the
Butterfly is set up with a little down thrust and a little right thrust. If
your plane doesn’t quite fly straight, you can make a little bend in the
appropriate direction, and check the result with a test flight.
Center of gravity on the Butterfly is set approximately in the middle of
the wing. Since we are using throttle and rudder only, we like to keep
center of gravity a little bit further back than on other models. This
helps us to maintain altitude in turns. In general, more incidence will
slow the butterfly down and will give you a better climb rate. Tail
length is adjusted only to shift center of gravity.
2
3
Fig. 3 Pick up the Butterfly along the midline of the
wing from above, as shown.
Fig. 4 The natural position to hold the Butterfly for
connecting the battery and for launching it for flight
Support Here
Support Here
Fig. 5 Always support the airframe when making
adjustments to wing incidence or tail length.

Alignment of the wing and tail surfaces should be checked over
periodically. Look down the fuselage stick with the plane facing
directly at your eyes - the leading edge of the wing will be approxi-
mately parallel to the tail (horizontal stabilizer) and the rudder (verti-
cal stabilizer) will be perpendicular to the tail and wing. If needed,
you can twist the balsa airframe to straighten the airframe out and get
the alignment right. You can actually bend the balsa airframe quite a
bit without breaking it - just start slow and go by what you feel in
your hands and you’ll be able to get your plane true after a crash or
after some quick repairs.
Propeller is attached to the gearbox by a friction fit over the middle
of the larger gear of the gearbox. We are currently shipping the But-
terfly without gluing the propeller to the gearbox - it is your choice
whether to glue it on or not. The propeller and battery may become
detached from the airplane if you crash the airplane. This is OK, you
can re-attach it very easily. If it is glued, the propeller can act as a
good shock absorber in a crash.
Attaching the propeller to the Butterfly is done by holding the
motor and gearbox with one hand and snapping on the propeller with
it’s white plastic adapter onto the middle of the large gear as shown in
Fig 6. If you wish, you may apply medium viscosity CA (cyanoacry-
late) glue to the mating surface of the prop adapter - either way is
acceptable. If you glue it on, be careful not to get it on the metal rivet
axle of the gearbox - glue on the edge only - you definitely do not
want to glue the axle of the gearbox - just the edge of the prop
adapter.
GETTING READY FOR FLIGHT
Attaching the battery to the Butterfly receiver is done in very much
the same manner as for charging. Just bring the cell close the the
magnets of the Butterfly receiver and “click”, it is attached in 1 sec-
ond flat Always have your transmitter turned ON first before attaching
the cell to the Butterfly.
Multi-Frequency Operation
This 900Mhz R/C System (868Mhz in EU), can be configured for use
on one of 3 radio frequencies “channels”. You select your channel
when you switch on your transmitter. The position of the Left joystick
at startup controls what channel you will use. When you startup the
Transmitter, you can hold the Left stick to the Left, leave it in the mid-
dle (default), or hold it to the Right, to configure operation on Chan-
nels 1, 2 and 3 respectively. Default is Channel 2 (left stick is in the
middle position). (The European frequencies are designated as num-
bers 4, 5 and 6 respectively, and are accessed in exactly the same
way) The American version of the HFX900 transmitter is capable of
transmitting on CH 1, 2 and 3 ONLY. The HFX868 transmitter is
capable of transmitting on CH 4, 5 and 6 ONLY. (See Fig. 7)
When selecting a Channel on startup, you can hold the Left joystick in
a position for about 2 seconds and let it spring back to center when
you are ready to transmit. Channel 2 is the default channel because
the Left joystick is a self centering joystick, so this channel is always
selected by default if you switch on the transmitter without holding
the Left joystick in any particular position. If you are flying alone, you
will probably be transmitting on channel 2 (CH 2) most of the time.
The receiver will look for the lowest channel number first and will
lock-on (sync) to the transmitter that is broadcasting on the lowest
channel number. It also will compare received signal strength, but for
practical purposes, the lowest channel number is the most important
factor for the receiver.
4
CHANNEL 1 (CH 4 Europe)
CHANNEL 2 DEFAULT (CH 5 Europe)
CHANNEL 3 (CH 6 Europe)
NEGATIVE EXPONENTIAL MIXING
NORMAL MIXING
FLIGHT SIM MODE (NON XMIT)
V-TAIL MIXING
Fig. 7 - Configure Transmitter functions by holding stick positions
while switching transmitter ON
Apply Glue Here
Fig. 6. Glue the Prop adapter if desired. Apply CA to the edge of
the prop adapter only.

When you are flying in the same room as others, The first user to start
up his airplane should use channel 2 or 3, and the second user can
use channel 1. Therefore up to three people can fly in the same room
simultaneously. The first person should use CH 3, the second should
use CH2 and the third person should use CH1. All three channels can
be used together without risk of interference from the others. If the 3
people flying in the same room are aware of what channel they are
using, they will be able to allow a new flyer to join in, so long as the
new user can select a lower channel number than what is currently
being used. If you are flying with your friends, put the longest flying
airplane on CH 3, and then let the other airplanes use the lower chan-
nels.
For example, if the first user will want to have a long flight, he should
use CH 3. Then if other users want to start up their planes too, they
can use CH 2, and the last guy gets to use CH 1.
If there is going to be a lot of people coming and going, or one user
is using CH 1 and wants to fly for a long time, the other flyers would
obviously not be able to select a channel lower than CH 1. They can
wait for the CH 1 airplane to finish his flight, or they can take their
model into a different room, or move about 100 feet away and try to
sync their receiver to CH 2 or CH 3 - in this way, they are using the
received signal strength to force the receiver to sync to CH 2 or CH 3,
even though a transmitter maybe be transmitting on CH 1
Future models of the HFX900 may have more channels (frequencies)
in the 900Mhz ISM band, or may use a frequency hopping technique.
This is not available on the first version of our HFX900 transmitters
and receivers, but we are working on it. For now the 3 channels will
allow most Micro R/C flyers to fly with friends interference free
Transmitter Mixing Modes
There are 4 user-selectable “Mixing Modes” available on the transmit-
ter. (See Fig.7 ) You select your “mixing mode” when you switch
on your transmitter The mixing mode you choose will be saved in
memory until you make another selection - even if you switch it off.
The position of the Right joystick at startup controls what mixing
mode will be selected. The factory default mixing mode is “Normal”
rudder and elevator mixing, this can also be selected at startup by
holding the Right joystick to the right for about 2 seconds.
This is the Mode you want to be in when you want to fly the
Butterfly. (See Fig 8)
When you startup the Transmitter, you can hold the Right joystick to
the left to select “Negative Exponential” mixing that might be useful to
dampen your joystick controls for squirrely models. When you startup
the Transmitter, you can hold the Right joystick down to select “V-
Tail” mixing for elevon style planes “Flight Simulator” mixing mode
is accessed by pushing the Right stick up at startup - which will put
the transmitter in to a non transmitting state that is used only when
we want to connect the transmitter to a personal computer for using
the freeware FMS flight simulator software. Note that the selected
mixing function will remain in memory, even if the transmitter is
switched OFF - This can be convenient, but it can also cause confu-
sion if you forget what mixing mode you are in. So if you use the
non-transmitting FMS function, you’ll have to remember to select
another mixing mode when you want to fly your real airplane - if you
forget to do this, it might seem like your transmitter is not working -
you have to remember what mixing mode you left your transmitter in.
Normal Mixing (Right Stick to Right)
This style of mixing is for 3 channel rudder and elevator. The Left
stick controls the motor throttle. The Right stick controls rudder and
elevator. This Mode is what we use to fly the Butterfly - we
just don’t need the elevator function.
Negative Exponential Rate - (Right Stick to Left)
This makes the control response milder around the joystick center
point, but it becomes increasingly stronger as the input approaches
100%. This can help for taming squirrely models.
V-Tail Mixing - (Right Stick Down)
For models that combine elevator and aileron function on two control
surfaces, like flying wings and V-tail planes.
FMS Mode - Selected at startup (Right Stick Up)
The FMS mode shuts down the radio functions of the transmitter and
instead sends signals through the monophonic audio jack on the left
side of the transmitter box. A special cable connects the transmitter
to a personal computer with the freeware FMS software installed, and
you can use the HFX900 transmitter as an R/C Flight Sim input
device.
5
RIGHT
FULL THROTTLE
ZERO THROTTLE LEFT
Fig 8 . Butterfly Controls are Easy
Use the “Normal” Mixing Mode.

Establishing Transmitter-Receiver R/C Link
Turn on your transmitter by pushing the 3 position switch all the way
to the far right. The main transmitter LED will glow. It is always best
to turn the transmitter on first.
The receiver can communicate to the user with audible tones and LED
blinking sequence.
Attach the LP30 cell to the Butterfly receiver, you will notice a distinc-
tive audible musical arpeggio tone sequence (musical notes C-E-G-
C-G-E-C) that indicates successful microprocessor startup. This
arpeggio is followed by a two-tone repetitive sequence (C-E,,,C-E,,,C-
E -- and so on). This repeating two-tone sequence indicates that the
receiver is scanning for a transmitter signal - it will continue to repeat
until a valid transmitter signal is received. Once a valid transmitter
has been found, the Channel number will be indicated by a series of
tones (G note). The default transmitter channel is Channel 2, so you
should hear two “G” notes to indicate that the receiver is operating on
Channel 2. (European HFX868 default is CH 5, so in Europe, you get
to hear 5 “G” notes indicating the receiver is operating on Channel 5.
Once you hear the final count of “G” notes, you will know that your
HFX900 system is ready for action. The actuator may start moving
and making a small sound and if your throttle stick or throttle trim is
not adjusted the propeller may be spinning, so be mindful of this.
You will be able to control the actuators by using the Transmitter Joy-
sticks, (See Fig. 8) but first you will need to adjust the trim by
moving the small trimmer wheels located near the transmitter joy-
sticks
Adjusting the Trimmers
Rotate the trimmer wheels with your thumb until you have successful-
ly stopped any motion and/or sound of the actuators. Most experi-
enced R/C pilots will have no problems with this, but if you are a
beginner, it might seem strange for now. Basically you will want the
trimmer wheels to be positioned near the middle of their full range of
motion. Make sure you know what mixing mode your transmitter is
configured to. If you are confused, remove the Bahoma cell from the
receiver, and review the transmitter mixing functions and start again.
Low Battery Protection - built in failsafe.
The Lithium Polymer Bahoma battery should not be discharged lower
than about 2.7 Volts. The low battery failsafe function of the Micro9
Butterfly receiver will ensure that you do not over discharge your lithi-
um polymer battery. The receiver measures cell voltage while your are
flying, and the LED will blink a series of flashes to indicate the gener-
al state of the battery voltage. In normal operation with a full battery,
the LED of the Butterfly receiver will blink once every second. The
receiver will warn you when your battery is low and needs to be
recharged by cutting the throttle to 60% and the LED will blink twice
per second giving you a visual indication of the battery voltage. If cell
voltage drops any lower, throttle will be automatically cut to 30% and
the LED will blink 3 times per second - Definitely time to land the
plane if you have not done so already. If you leave the battery on the
receiver for too long (like overnight) you may over discharge and
damage the cell - so be sure to disconnect it and recharge when you
are done
HFX900 (Americas) Frequencies
CHANNEL 1 904.4775 Mhz
CHANNEL 2 915.9975 Mhz
CHANNEL 3 927.5175 Mhz
HFX868 (Europe)Frequencies.
CHANNEL 4 868.105 Mhz
CHANNEL 5 868.385 Mhz
CHANNEL 6 869.910 Mhz
FMS FLIGHT SIM
Using the HFX900 Transmitter for the FMS
R/C Flight Simulator
To use our transmitter in the FMS joystick mode, connect the supplied
serial cable to your Windows PC and insert the mono plug into the jack
on the left side of the transmitter
We have included a CDROM that has the FMS Flight simulator, and
also has the Plantraco MicroScout FMS model. Soon we will be
adding the Butterfly FMS model and other items to the CDROM.
You will be able to download the Butterfly FMS model and also find
links to FMS stuff from our website at http://www.plantraco.com/FMS
If you lose the CDROM that was included with your system, you can
download the freeware Flight Simulator "FMS"
The Windows Installer can be downloaded here:
http://www.n.ethz.ch/student/mmoeller/fms/beta/fmsdisk01.exe
The official website for FMS can be found here:
http://n.ethz.ch/student/mmoeller/fms/index_e.html
Once downloaded launch the installer and choose your installation
directory (Normally "C:\Program Files\" ) This should already be the
default, and you can just press next.
You can choose to put an Icon on the desktop for easy launch of the
application. The program should be installed.
You can Launch the program from the icon located on the desktop or
6

from the start menu.
With the Serial Cable attached to the computer, and the mono plug
inserted into the jack on the side of the transmitter, hold the Right stick
Up - while simultaneously switching the transmitter from off to ON
The transmitter will now be in the NON TRANSMITTING mode and can
be used as an input device for the flight simulator.
In the FMS program click the menu "Controls" then click on " Analog
controls…" .
Select "Serial PIC Interface" and then click the button marked
"Resources". Then you will need to select the com port which the cable
is connected to. (Probably COM1)
For the Baud Rate Choose "19200" . Then Press OK
Then Click "Mapping/Calibration" then click "Calibrate" you should
now move both sticks in all directions to allow the software to adjust to
the range of motion available.
Rudder is set to 1 be default, but some models will require it to be set
to 3 for proper flight controls. See FIg 9
You can see the blue bars moving up and down to confirm full range of
motion.
Two or three big circles with both sticks should be fine.
Click Ok.
And then click ok again.
The aircraft on screen should now start rolling ahead - You should now
be able to affect the aircraft by moving the control sticks.
To switch back to a transmitting mode hold the right stick to the right
and simultaneously switching the transmitter from off to ON.
TROUBLESHOOTING
We hope that you won’t have any problems with your Butterfly, but if
you do, check this Troubleshooting list first.
1. My Receiver played the startup tones through my actua-
tor at startup, but then it just plays the C-E tones over
and over - it keeps beeping.
• Check transmitter - Make sure the switch is all the way to the right
and the transmitter LED is glowing
• Is the transmitter in FMS mode? Switch the Tx off for a few sec-
onds and then startup with the Right joystick held to the right for 2
seconds - Let the stick go and you should be in normal rudder
elevator R/C mode again. Now remove the battery from the receiv-
er and start it up again. You should hear the arpeggio tones, and
then the C-E tones and then a few G tones to tell you what channel
you have just locked-on (synced) to.
• Change your Transmitter batteries for fresh ones and try again
• Check if your receiver still has it’s antennas - have they been bro-
ken off or cut? replace and try again or contact Plantraco
2. When I charge my LP30 cell on the built-in charger of
the transmitter, the LED goes out right away, but the cell
doesn’t seem to have much power anymore.- Or - It
seems to be taking forever to charge my LP30 cell.
• Replace the AA batteries in the transmitter- they are probably low and
we have to have greater than 4.4 Volts left in the 4 AA cells in
order to charge up the LP30 cell. A normal Charge will take about
60 minutes With fresh AA cells in the transmitter, you should be able
to get about 30 charges of your LP90 cell - you may get more, depend-
ing on how you use your cells, but eventually, the AA cells of the trans-
mitter will become depleted, so be mindful of the charger LED. It can
be a good idea to use a digital volt meter (these are often available for
less than $15.00 these days) to check your cell voltage once in a while.
3. I sync up fine, but the controls seem to be reversed or
something - when I give it elevator, I get rudder - it’s all
messed up
• You are in V-Tail mixing mode. Power off the transmitter for 5
seconds and restart the transmitter while holding the Right joystick
to the right for about 2 seconds and when you release it, you
should have normal control again.
4. I sync up fine, when the models is throttled up or is
shaken, the battery seems to lose it’s connection, and
the receiver starts up again, I can hear the tones.
• Try squeezing the Bahoma battery magnet terminals of the cell and
slide the battery around on the receivers magnets when you make
a connection - this will help to clear any debris that might be pre-
venting the Bahoma magnets from getting a good electrical con-
7
Fig. 9 Setup of the FMS Flight Sim. These are Screenshots of the
Mapping and Calibration and Control Screens

tact. If the magnets are well apposed to each other, they should stick
fine and you won’t shake them loose anymore
• You can also try using a small piece of tape to securely affix the
battery to the receiver if your airplane is a bit shaky in the air. If
your gearbox and prop are well balanced, you will have less shak-
ing of your model in the air - you can check that too to reduce
vibration.
5. I crashed my plane, and now when I start up the receiv-
er, I don’t hear any tones at all and I can’t seem to sync
anymore
• Check your magnetic actuator wiring - broken wire?
• Check the LED on the receiver - does it blink when the receiver is
powered up with the cell? It should
• Does the LED blink in an S-O-S pattern for about 10 seconds and
then it does play some tones? If it does, this means your cell needs
to be recharged
• Check magnets on your cell and on the receiver - are they all still
attached and intact? If they have broken off of the cell, you’ll need to
replace or repair it - If a magnet has broken off of the receiver, con-
tact Plantraco
•Check the magnet terminals to see if there is any mag-
netic debris coating the cells, preventing a good electri-
cal connection. If there is, clean them off with a Q-tip,
toothpick, small flathead screwdriver etc Dip your Q-tip in
rubbing alcohol, this can clean the crud off your
magnet terminals
• Check the bahoma cell - measure volts with voltmeter. You should
be above 4 Volts for a fully charged cell
• Perhaps in the crash, you broke a solder joint on the PCB - if you
know how to solder, you can try to reheat the solder joints of all
components until you fix the problem, or you can contact Plantraco
for more advice or repair services.
6. I can’t get FMS to work properly
• Make sure you put your transmitter in FMS mode. Do this by
holding the Right Stick in the up position at startup of the trans-
mitter. You can check that the transmitter is in FMS mode by
starting up your receiver - it should keep beeping without syncing
to the transmitter since the transmitter should be in the non-trans-
mitting FMS mode now. If your receiver can still sync to your
transmitter, you are not in FMS mode.
• Follow the directions on the CDROM carefully. Re-install FMS, or
call your local computer guru to help you. It’s easy, but maybe
your system is messed up. We’ll have more tips on FMS mode on
our website, just go to http://www.plantraco.com/FMS or
http://www.plantraco.com/hobbies/help.html
7. I crashed my plane and the airframe is damaged.
• Spare Airframes are available from Plantraco
• Repair broken Balsa with a drop of thin CA Glue
• See the Plantraco website for instructions on doing repairs etc.
To Re-Order Spare Parts etc. Call your
Local Dealer or Plantraco Direct at:
1-306-955-1836
World Wide Web at:
www.plantraco.com
www.microflight.com
Email us at: [e-mail]
8
Butterfly Manual v 0.7 Copyright 2005 All Rights Reserved
Any changes or modifications (including the antennas) made
to this device that are not expressly approved by the manufac-
turer may void the user’s authority to operate the equipment.
FCC ID:NYIHFX900 CE Compliant with EMC Directive 89/336/EEC
Patents Pending