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Also, it is not recommended that you fly to the soft LVC every time you fly. Instead you should be aware of the 
power level of the battery / airplane throughout the flight, and if at any time the airplane begins to require more 
throttle/ power than typical to maintain cruise or climb you should land the airplane and disconnect the LiPo 
battery immediately . Constantly discharging the battery to the soft LVC can still cause permanent damage to 
the battery so it’s best to use a timer or stop -watch to time the duration of your flights and to stop flying at a 
reasonable time before the soft LVC is reached.

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IMPORTANT NOTE: DO NOT LEAVE THE LIPO BATTERY CONNECTED TO THE ESC UNLESS YOU ARE READY 
TO FLY. IF THE BATTERY IS LEFT CON- NECTED TO THE ESC WHEN IT IS NOT IN USE THE LIPO BATTERY WILL 
BE OVER-DISCHARGED BY THE SMALL AMOUNT OF CURRENT THE ESC CONSUMES.

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It can sometimes take a few hours or even up to a few days to over- discharge the battery this way but doing 
so  will  likely  cause  permanent  damage  to  or  failure  of  the  battery  entirely  (which  is  not  covered  under 
warranty).

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IMPORTANT NOTE: DO NOT STORE THE LIPO FLIGHT BATTERY FULLY CHARGED. 

For improved safety 

and longevity of the LiPo battery it’s best to store it only partially charged for any length of time. Storing the 
LiPo battery at approximately 50% charged (which is approximately 3.85V per cell) is typically best, however it 
will take some careful management of the charge time and the use of a voltmeter to achieve this voltage.

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If  you  have  the  equipment  and  skills  to  achieve  the  50%  charge  level  for  storage  it  is  recommended.  If  not, 
simply be sure to not store the battery fully charged whenever possible. In fact ,as long as the battery will be 
stored at approximately room temperature and for no more than a few weeks before the next use, it may be 
best  to  store  the  battery  in  the  discharged  state  after  the  last  flight  (as  long  as  the  battery  was  not  over-
discharged on the last flight).

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Flight Checklist

 

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PLEASE  NOTE:  This  checklist  is  NOT  intended  to  replace  the  content  included  in  this  instruction 
manual.  Although  it  can  be  used  as  a  quick  start  guide,  we  strongly  suggest  reading  through  this 
manual completely before proceeding.

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• Always turn the transmitter on first

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• Ensure the throttle control stick is on the button position then plug the battery. 

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• Fly the model (hand

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launch or takeoff from a flat/level surface)

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• Land the model (land on a flat/level surface)

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• Unplug the LiPo flight battery from the ESC

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• Always turn the transmitter off last

 

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Check The Control Surface And Channel Condition

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Mode 1 and Mode 2: 

Depending on which area you are in, you will either use a Mode1 or Mode 2 transmitter. 

The  difference  between  the  two  modes  deals  with  the  throttle  and  Elevator  joystick  different.  Mode  2 
transmitters have the throttle control on the left stick and the Elevator controls on the right stick. Mode 1 is in 
the opposite way.

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RANGER EX — Professional FPV Platform

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10 16

Summary of Contents for RANGER EX

Page 1: ... 8 in 2000mm Length 46 5 in 1180mm Motor 3715 1000KV out runner Brushless motor Servo 9g servo 4pcs Metal Gear 9g Servo 2pcs Battery 11 1V 2200mAh 25C Li Po or above SEE YOUR WORLD FROM A NEW PERSPECTIVE PROFESSIONALFPV PLATFORM ...

Page 2: ... to read and follow all the instructions and warnings in the manual prior to assembly setup or use in order to operate correctly and avoid damage or serious injury RANGER EX Professional FPV Platform 2 16 As the user of this product you are solely responsible for operating in a manner that does not endanger yourself and others or result in damage to the product or the property of others Always kee...

Page 3: ...store the battery in a temperature range of 40 120o F 5 49o C Do not store battery or aircraft in a car or direct sunlight If stored in a hot car the battery can be damaged or even catch fire Always charge batteries away from flammable materials Always inspect the battery before charging and never charge damaged batteries Always disconnect the battery after charging and let the charger cool betwee...

Page 4: ...PA2 5 7 Connect the push rod to the servo horn and make sure the surface flat 3 Install the servo horn by screws PB2 15 2 4 Install the Rudder and Elevator as shown in the image and fix it by screws PA2 5 8 6 1 Install the wheel by a screw PM4 30 2 with nuts as shown in the image below 2 Install the landing gear to the corresponding gap under the fuselage and fix it by two screws PM3 15 2 ...

Page 5: ...o backward 9 Fix the motor to the nylon plate by 4pcs screws KM3 6 4 10 Fix the nylon plate into the corresponding gap of the motor tower and fix both side together by screws PA2 5 8 5 11 Install the servo horn as shown in the image and fix it by screw PA2 15 2 12 Insert a short tube into the push rod then connect it to the servo arm 13 Install the servo arm to the servo and fi x i t b y s c r e w...

Page 6: ... threaded end of the metal pushrod so you can insert the pin in the OUTERMOST hole on each control horn It may be helpful to insert a flat blade screwdriver not included into the clevis then carefully twist it until it disengages the pin from the hole in the clevis Also it is not necessary to snap the clevis back together until the centering adjustments are complete After connecting the clevises t...

Page 7: ...he trim lever slightly as needed Also it will likely be necessary to make further adjustments to the position of the trim lever during flight as most surfaces do not end up in exactly the centered position when an airplane is trimmed properly for actual flight but centered is still the best starting point Follow the same steps outlined for centering the rudder to center the elevator as well Also w...

Page 8: ...e model flight If the C G is too far aft tail heavy the model will be too responsive and difficult to control If the C G is too far forward nose heavy the model will be too stable and not responsive enough In order to obtain the C G specified add weight to the fuselage or move the battery position Check the C G before flying RANGER EX Professional FPV Platform 8 16 ...

Page 9: ...ammable materials to observe it for at least 15 minutes Continuing to charge or discharge a battery that has begun to balloon or swell can result in a fire A battery that has ballooned or swollen even a small amount must be removed from service completely Store the battery partially charged approximately 50 charged 3 85V per cell at room temperature approximately 68 77 Fahrenheit F and in a dry ar...

Page 10: ...cally best however it will take some careful management of the charge time and the use of a voltmeter to achieve this voltage If you have the equipment and skills to achieve the 50 charge level for storage it is recommended If not simply be sure to not store the battery fully charged whenever possible In fact as long as the battery will be stored at approximately room temperature and for no more t...

Page 11: ...r and the servos work normally CAUTION Make sure that you must turn on the transmitter firstly and then you can connect the battery plug If you want to turn off the transmitter you must ensure that the battery of the plane must be cut off first RANGER EX Professional FPV Platform 11 16 ...

Page 12: ...ot to test fly and properly trim the model before attempting your first flight A proven flyable and properly trimmed model is significantly easier and more enjoyable to fly Please contact your local hobby shop and or flying club to find a more experienced pilot near you After you ve properly trimmed the airplane in calm conditions and become familiar with its handling capabilities you ll be able t...

Page 13: ...ption would be to try another range check at an alternate flying site After the range check fully extend the antenna Monitor and limit your flight time using a timer such as the one on your wrist watch When the batteries are getting low you will usually notice a performance drop before the ESC cuts off motor power so when you notice the plane flying slower you should land Often but not always powe...

Page 14: ...ll make the plane bank to your right However when the model is flying toward you moving the aileron stick to the right will make the plane move to your left Of course the plane is still responding the same way it s just that your orientation has reversed This must be kept in mind while learning to fly and is also a good reason to take flight lessons from an experienced pilot To establish a turn up...

Page 15: ...er once you have become more experienced with your plane you can cruise around and perform slow fly bys with the flaps extended CAUTION If during a rough landing the propeller becomes jammed and cannot rotate the battery and speed control will become very hot if you attempt to add power Immediately move the throttle down to stop the motor If you fail to do this the motor speed control and or batte...

Page 16: ... 2014 VolantexRC Co Ltd ...

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