All instructions, warranties and other conateral documents are subject to change at the sole discretion of Horizon Hobby, LLC. For up-to-date product literature, 

visit horizonhobby.com and click on the support tab for this product. 

Meaning of Special Language 

The following terms are used throughout the product literature to indicate various levels of potential harm when operating this product: 

NOTICE: Procedures, which if not property followed, create a possibility of physical property damage AND a little or no possibility of injury. 

CAUTION: Procedures, which if not property followed, create the probability of physical property damage AND a possibility of serious injury. 

WARNING: Procedures, which if not property followed, create the probability of property damage, collateral damage, and serious injury OR create a high probability of superficial injury. 

h... WARNING: Read the ENTIRE instruction manual to become familiar with the features of the product before operating. Faiure to operate the product 

Lll correct¥ can result in damage to the produc~ personal property and cause serious injury. 

This is a sophisticated hobby product. ~ must be operated with caution and common sense and requires some basic mechanical ability. Failure to operate this 

Product in a sate and responsible manner could resu~ in injury or damage to the product or other property. This product is not intended for use by children without 

direct adult supervision. Do not use with ilcompatible components or alter this product in any way outside of the instructions provided by Horizon Hobby, LLC. 

This manual conlains instructions for safety, operation and mailtenance. ~is essential 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 i1 jury. 

Age Recommendation: Not for children under 14 years. This is not a toy. 

General Safety Precautions and Warnings 

• Always keep a sate distance in all directions around your model to avoid collisions or injury. This model is controlled by a radio signal subject to interference 

from many sources outside your control. Interference can caJse momentary 

loss of control. 

• Always operate your model in open spaces away from full-size vehicles, traffic 

and people. 

• Always carefully follow the directions and warnings for this and any optional 

support equipment (chargers, rechargeable battery packs, etc.). 

• Always keep all chemicals, small parts and anything electrical out of the reach 

of children. 

• Always avoid water exposure to all equipment not specifically designed and 

protected for this purpose. Moisture causes damage to electronics. 

• Never place any portion of the model in your mouth as it could cause serious 

injury or even death. 

• Never operate your model with low transmitter batteries. 

• Always keep aircraft in sight and under control. 

• Always move the throttle fully down at rotor strike. 

• Always use fully charged batteries. 

• Always keep transmitter powered on while aircraft is powered. 

• Always remove batteries before disassembly 

• Always keep moving parts clean. 

• Always keep parts dry. 

• Always let parts cool after use before touching. 

• Always remove batteries after use. 

• Never operate aircraft with damaged wiring. 

• Never touch moving parts. 

A CAUTION: The ESCs tor the 350 OX3 are not compatille with any other product, and the 350 OX3 is not compatible with any other ESCs. Use of any other 

Lll ESCs on the 350 OX3 will cause a crash, which may resu~ in property damage and/or personal injury. 

A WARNING AGAINST COUNTERFEIT PRODUCTS: If you ever need to replace a Spektrum component found in a Horizon Hobby produc~ always purchase 

Lll from Horizon Hobby, LLC or a Horizon Hobby authorized dealer to ensure authentic high-quality Spektrum product. Horizon Hobby, LLC disclaims all support and warranty with regards, but not fimited to, compatilility and performance of counterfeit products or products claiming compatibility with OSM or Speklrum. 

Before operating this product, consult all applicable local and national regulations, as well as any accredited modeling associations in your area. In the US, airspace 

regulations are governed by the Federal Aviation Administration (FAA) and applied in part by the Academy of Model Aeronautics (AMA). You are responsible for both 

how and where you fly your aircraft. 

FAA Website: http://Www.faa.gov/ 

AMA Website: http:lwww.modelafrcraftorg/ 
Box Contents ................................................................. ................................... .. 4 Flight Mode Switch (RTF, AP Combo) .................................. ................................. 9 

Charging Wamilgs .................... .......................................................................... 4 Flight Modes Explained ...................................................... ................................. 9 

Low Voltage CUtoff (LVC) ..................................................................................... 4 LEO Codes ........................................................................................................ 10 

Charging the Flight Battery ................................................................................. 5 GPS Functionality .............................................................................................. 10 

Install the Gimbal (AP Combo) ............................................................................. 5 Flight Guidelines and Warnings ................................ ... ...................................... 11 

Install the Transmitter Batteries (RTF, AP Combo) ......... ........................................ 5 Preparing the 350 OX3 For Flight ................................... .... ............................... 11 

Transmitter Control Layout (RTF, AP Combo) ........................................................ 6 Flying the 350 OX3 ........................................................................................... 11 

Extend the GPS Mast .......................................................................................... 6 Galibra1ion Procedures ....................................................... ............................... 13 

Install the Flight Battery ...................................................................................... 6 Graphic User Interface ...................................................................................... 14 

Transmitter Selllp and Binding (BNF) .................................................................. .7 Troubleshooting ................................................................................................ 14 

Binding ............................................................................................................... s Parts of the 350 OX3 ......................................................................................... 15 

Components Specifications 

Airframe Blade® 350 OX3 <mdcopter Length 18.30 in (465mm) 

Motors 4x Brush less Outrunner Motor, 11 OOKv Height 7.48 in (190mm) 

ESCs 4x 10-Amp Brushless ESC Rotor Diameter 22.80 in (580mm) 

Battery 3000mAh 3S 11.1V 20C LI-Po Battery Flying Weight 33.7 oz (955 g) 

Charger 3S OC Li-Po Balarl:ing Charger with 5A AC Power Supply To register your product online, visit www.bladehelis.com 

Transmitter Spektrum'" OX4 OSMX8 4-Chamel Transmitter (RTF, flf' Combo) 

Came ra/Gimbal CG02 GB 1 080p HD (AP Comlx>) 
• Blade 350 OX3 

• CG02 3-Axis camera/Gimbal (AP Combo) 

• 3000mAh 3S 11.1V 20C Li-Po Battery 

• 3S DC Li-Po Balancing Charger with 5A AC Power Supply 

• Spektrum DX4 DSMX 

4-Channel Transmitter (RTF, AP Combo) 

• 4 AA Batteries (RTF, AP Combo) 

• Cell Phone Mount 

Charging Warnings 

A WARNING: Failure k> e>ercise caJtioo while using this product Clld comply 

Lll with the folklwing wcmings could result in product malfunctk>n, electrical 

issues, excessive hea~ FIRE, Clld ultirmiely iljury and p~rty damage. 

• NEVER LEAVE THE POWER SUPPLY, CHARGER AND BATTERY UNATTENDED 

DURING USE. 

• NEVER CHARGE BAmRIES OVERNIGHT. 

• Never attempt to charge dead, damaged or wet battery packs. 

• Never attempt k> charge a battery pack containing different types of batteries. 

• Never allow children under 14 years of age to charge battery packs. 

• Never charge batteries in extremely hot or cold places ll' place in direct 

sunlight. 

• Never charge a battery if the cable has been pinched or shorted. 

• Never connect the charger if the power cable has been pinched or shorted. 

• Never attempt k> dismantle the charger or use a damaged charger. 

• Never drop charger or batteries. 

• Always use only rechargeable Li-Po batteries designed for use with this type 

of charger. 

Low Voltage Cutoff (LVC) 

Low voltage cuk>ff (LVC) protects the U-Po battery from over-discharge in flight 

and activates when the battery reaches a preset value. When the battery is 

discharged to the cutoff poin~ the aircraft will display rapidly flashing red, green 

and blue LEOs to warn you it's time to land. When you see this LED code, land 

immediately k> prevent over-discharge and damage to the battery. 

When the LVC is activated, you have approximately 2 minutes until the battery is 

depleted and can no longer mainlain a hover. Repeated flying to LVC will damage 

the battery. 

• Always inspect the battery before charging. 

• Always keep the battery away from any material that could be affected by 

heat. 

• Always monitor the charging area and have a fire extinguisher available at all 

times. 

• Always end the charging process if the battery becomes hot to the touch or 

starts to change form (swell) during the charge process. 

• Always connect the charge cable to the charger first, then connect the battery 

to avoid short circuit between the charge leads. Reverse the sequence when 

disconnecting. 

• Always connect the positive red leads(+) and negative black leads(- ) correctly. 

• Always disconnect the battery after charging, and let the charger cool between 

charges. 

• Always charge In a well-ventilated area. 

• Always terminate all processes and coolact Horizon Hobby if the product 

malfunctions. 

NOTICE: Crash damage and battery damage are not covered under warranty. 

IMPORTANT: Always disconnect and remove the Li-Po battery from the aircraft 

after each flight. Charge your Li-Po battery to about half capacity before storage. 

During storage, make sure the battery charge does not fall below '.N per cell. 

A connected battery will result in trickle discharge. 
1b 

Install the Gimbal (AP Combo) 

Install the Transmitter Batteries (RTF, AP Combo) 

Charger Specifications 

• Input Voltage: 10.5-15V DC 

• Charge Current: 3.5A 

The Battery Charging Process 

1. Connect the AC po.ver supply to too charger. 

2. Connect the AC po.ver supply to an AC po.ver source. 

The green LEO blinks. 

3. Connect the battery to the charger. The roo LEO 

blinks, indicating dlaryng. When the battery nears 

full charge, the red and green LEOs blink. indicating 

cell oolancing. 

4. Disconnect the battery when the green LEO glows 

solid. 

Charger LED Codes 

Geen Sinking: Power connected 

Rld Sinking: Charging 

Rld & Geen Ellili<in;r Cells balancing 

Geen Sjid: Charging complete 

Rld Sjid: Error 

A CAUTION: All instructions and warnings must 

Lll be followed exactly. Mishandling of Li-Po 

batteries can result in a fire, personal injury and/or 

property damage. 

NOTICE: If using a battery other than the included 

Li-Po battery, refer to your battery manufacturer's 

instructions for charging. 

• Slide the gimbal on the mount rails until it locks . 

• Connect the wring harness to the plug 00 the bottom 

of the 350 OX3. 

• To remove the gimbal, press the tab at the front of 

the mount and slide the gimbal forward. 

• Install 4 M batteries in the transmitter as shown. 
Transmitter Control Layout (RTF, AP Combo) 

Extend the GPS Mast 

Install the Flight Battery 
Transmitter Model Switch Select Reversing Throttle Cut Model Setup Switch Position 

Type 

a:ro n'a g:a-- R a:i "icMI .bq: Re:p T 120 ! 100 Smart Mode = F rvt:xE ( FI:S 0) 

.All dhers - N lm:ttle s..t:trim: T 10 Return Home = F M.:x:le (FI:S 1) 

~ R.PP AP MODE = B.ECYR(FUS 1) 

N:nn T 100 GIMBAL control= A.PP(FUS1 ~ 

DX61 la-d ! 100 llTc:ttle CXJirds gni:lal crge 

Mx1: kcelerometer cali>ration = s:t R.JtPto R:SO a-d cyde ga:r~ga:roct Figt lltcd;)Sv'lch4 tirres 

rl'ie: 0-60%, UO% Compass calibration = s:t A.PPto FCS 10 a-d qde S/11. elecVr Aigt M.:x:le 9Mtd14 tirres 

arpa-e OlaTS l'69gr. Sawsa~.p: lht:ttle at: Sawsa~.p: Smart Mode = SMtdl B ( FCS O) 

Chcr'rS lilli 10<1- R RBticn: l'<tJS: AP MODE= 9MtchB(FUS1) 

<lrl[Q (2rd paJSJ .All dhers - N - 13QO/o 120% Return Home= SMtch B(FI:S 2) Ga':B St.itdl: SMtdli 140% 

PU<1:A AX1 GIMBAL Control = SMtchA(R:S ~ 

DX6 llTc:ttle CXJirds gni:lal crge 

Compass calibration = SMtdlA (R:S 1) ard 

c~e B9Mtd14 tirres 

Accelerometer calibration = StJtdlA(R:SO)cn::l 

C)de B sWtd14 tirres 

arpare ~:10<2 Sawsa~.p: lht:ttle at: Sawsa~.p: Smart Mode = R<p 9Aitd1 ( FI:S 0) 

G!a":PU<I PIIN::R\.1 CJ>/obner l'<tJS: AP MODE = A..2p 9Aitd1 (R:S 1) R~G:a' AJx1 120% 140% Return Home = ~ 9Mtd1 (FCS. 2) 

DX7s 

GIMBAL Control= G:a' 9Aitd1 (R:SO~ 

~ cx:mds gni:lal crge 

Compass calibration = G!a'" 9Mtch (R:S 0) em c~e A.PP9Mtd14 tirres 

Accelerometer calibration = G!a'" 9Mtd1 (R:S 1) ard 

cycle R.A09Aitd1 4 tirres 

arpa-e G!a":PU<I Sawsa~.p: lht:ttle at: Sawsa~.p: Smart Mode = F rvt:xE 9Aitd1 ( FI:S 0) 

10<2 PIIN::R\.1 CJ>/omner l'<tJS: AP MODE= F M.:x:le 9Mtd1 (FUS 1) FM:x:E GB' AJx1 120% 140% Return Home = F M.:x:le 9Mtd1 (FCS. 2) 

DX8 

GIMBAL Control= G:a' sWtctl (R:SO~ 

~ CXJirds 9ni:lal crge 

Compass calibration = G!a'" 9Mtch (R:SO) ard 

c~ R.PP 9Mtd'l4 tirres 

Accelerometer calibration = G!a'" 9Mtd1 (R:S 1) ard 

cycle R.PP 9Aitd14 tirres 

arpare O'a'n:j l'69gr. Sawsa~.p: lht:ttle at: Sawsa~.p: Smart Mode = SMtdl B ( FCS 0) 

01me:l t"pJ PIIN::R\.1 RBticn: l'<tJS: AP MODE= 9Mtd'IB(FUS1) 

a:ncg~~J - 13QO/o 14CJ>/o Return Home= SMtchB(FI:S 2) <la: B St.itdl: SMtdli 12CJ>/o 

PU<1:A AX1 GIMBAL Control = ASVvitch (FUSO~ 

DX9/DX18 .AUQ: RKrd:> ~ CXJirds 9ni:lal crge 

Compass calibration= Asv.itdl (FUSO) ard 

c~e B9Mtd14 tirres 

Accelerometer calibration = G!a'" 9Mtd1 (R:S 1) ard 

cycle B 9Aitd14 tirres 
The RTF/AP combo transmitter is bound to ltle model 

at the factory. If for any reason ltle model needs to be 

re-bound, follow the directions below. 

Binding the 350 OX3 To Your Transmitter 

1. With ltle transmitter and quadc~ter powered OFF, 

connect the battery to ltle 350 QX3. 

2. Place ltle 350 QX3 on a flat level surface. 

3. Power ltle 350 QX3 ON and let it initialize. The 

status LED will remain off. 

4. Hold ltle 350 QX3 upside down until the status LED 

flashes blue, indicating it has entered bind mode. 

5. Set the quadropter back upright 

6. On your transmitter, ensure ltle throt1le is in ltle low 

position and the throttle trim is at neutral. 

7. Power ON your transmitter in bind mode according 

to the instructions included wiltl yoor transmitter. 

8. When ltle binding process is successful, ltle 

350 QX3 will emit a quick, 3-beep tone and ltle LED 

will flash either green, purple or red, depending on 

which flight mode is selected. 

If ltle LED is flashing red, the 350 QX3 is in Return 

Home mooe. Switch to Smart crAP Mode (green 

or purple flashing) before attempting to start the 

motors. 

9. Place ltle quadropter outdoors in the desired 

starting positK.m in preparation for flight 

Transmitter Bind Ccx:les 

Bind wiltl GPS disabled 
Flight Modes Explained 

Smart Mcx:le Sick Relativity Cbntrollnputs 

Right transmitter stick 

Stick commands move the 350 QX3 

relative to the pilot location 

Right transmitter stick 

Stick commands move the 350 QX3 

relative to the quadcopter's orienlation 

Away from the pilot. 

® 

Toward . 

the pilot 

Pilot location 

Front 

Smart Mode 

(Solid Green LED on the 350 OX3) 

AP Mode 

(Solid Purple LED on the 350 OX3) 

Return Home 

(Red flashing LED on the 350 QX3) 

Smart Mode 

This flight mode is intended for 

the beginner pilot For best results while using Smart Mode, 

it is recommended the pilot 

always tum to face the 

350 OX3 while flying. 

• Stick Relativity-While in Solid Green LED 

Smart Mode, the path of the aircraft will always 

follow the contra stick input direction relative to the 

pilot location, regardless of the direction the nose of 

the aircraft is pointing. 

• SAFE Circle'· feature-In most scenaros, the quad 

will not enter the SAFE Circle. 

• Positioo ltJ/d- The aircraft will hold its positioo when 

elevator and aileron inputs are at neutral. 

• Seff-Leve/ilg-Brings the 350 OX3 to a level attitude 

when the elevator and aileron inputs are at neutral. 

• i 00 m goo· fence-The 350 QX3 uses GPS information to create a virtual barrier and wfll net travel 

farther than 100 meters from the home pooition. 

APMode 

This flight mode keeps the 

350 QX3 in a steaty hover 

and locked into positioo while 

the contros are held at neutral, 

making it deal for image/video '------------' 

capture. 

• Control Input- While in AP Mode, the 350 OX3 

follows the control stick input direciXln relative to the 

positioo cr~d orientation of the aircraft rather than the 

positioo c1 the pilot 

• Positfoo ltJ/d- The aircraft will hold ~s positioo when 

elevator and aileron inputs are at neutral. 

• Se/f-Leve/ilg- Brings the 350 OX2 AP to a level 

tt ~ude when the elevator and aileron inputs are at 

neutral. 

• 100m goo-fence- The 350 QX3 uses GPS information to create a virtual barrier and wm net travel 

farther than 100 meters from the home poo~ion. 

NOTICE: If the 350 QX3 loses GPS signal while flying in either Smart or AP Mode, the LED will flash either green or purple, depending on which !tight mode you are 

currently usilg, and the 350 QX3 will default to a slable !tight mode ~h simHar control response asAP Mode without the availability of position hold. Return Home 

will not function. Please familiarize yourself with the controls in AP Mode to ensure a safe return of the 350 QX3 in the event of GPS signal loss. 
A CAUTION Startup Codes : If you see the LED signal for low 

LU battery (10.6V), immediately land your aircraft 

and recharge the battery. 

Radio off or not bound to the quad....................................... No LED 

A CAUTION: Do not attempt 1D use Return Home 

£ll with a low battery. 

Initialization failed... ............................................................. e o eo eo eo eo e oe o 

IMU initialization .. ... ... .... ... ............... ... ..•. ... ... ...... ................ . e e e 

Fully charged battery .......................... .... ............................ . 

Fully discharged battery ...................................................... . 

Emergency mode (cyde power to reinitialize) ... ... ... .......... ... . ~ ~ ~ 

Bindmode ........................................................................... •••••••••••••• 

Flying Codes 

GPS Disabled .......................................... ... ... ...................... . 

Smart Mode, waiting forGPS .................. ............................. - - - - -

Smart Mode, GPS lock ........................................................ . 

AP Mode, waiting for GPS..................................................... - - - - -

AP Mode, GPS lock .................................. ... ......................... . 

Return to home mode activated ........................................... e e e e e e e e e e e e e e 

GPS lost while in Smart mode (in flight)................................ - - - - -

GPS lost while in AP mode or return to home Qn flight) ........ . 

Battery voltage below 10.9V ............................................... . •

-----

•• ••• • •• 

Battery voltage below 10.6V ............ ....... ............................ . • ••••••••••••• 

Compass calibration needed ............ ................................... . C) c::) 0 c::> c:::::> 

GPS Functionality 

To acquire a refiable GPS signal, it is important the 350 QX3 has a clear view of 

the sky. Obstructioos that can affect the arcraft's ability to acqui:e an acceptable 

signal indude: 

• Flying close to or around taiVbig buildings 

• Flying under dense vegetatioo 

• Flying indoors or under a structure 

If you cannot acqur e a GPS lock at startup, the motors cannot be started in either 

Smart Mode or AP Mode. You will have to re-bind the quadcq>ter with the GPS 

functions turned ctf to allow you to start the m!Xors for flight (see the Binding 

sectiorf].lt is not possible to use Smart Mode without having GPS enabled. If the 

350 QX3 is initialized with GPS disabled, it will default to AP Mode without position 

hold, but will still be capable of anitude hold. 

If you lose the GPS signal while flying, the aircraft will not have Stick Relativity, the 

SAFE Circle'" feature, Position Hold or Return Home functions available. We recommend maneuvering the 350 QX3 by steerilg with forward eleva1Dr and rudder only 

if GPS signal is lost 

A CAUTJON: Do not attempt 1D fly the 350 QX3 with GPS enabled while 

£ll indoors or in a locatioo where the GPS signal is known 1D be poor, as loss 

of signal could result in a crash. 

GPS Functions 

(see the Binding section fa fuming GPS functions ON and OFF) 

WithGPSON 

• If the 350 QX3 took off with GPS lock and a home pooition set, when Return 

Home mode is activated the quadcopter will fly back to the start position 

(maintaining altitude aloog the way), then reduce anitude to land. 

• If the 350 QX31ooes GPS lock while flying in Smart, AP or Return Home 

mode, the LED will flash green, purple or red, depending on which flight mode 

you are currently using. The 350 QX3 will defaun to a stable flight mode with 

similar contra response to AP Mode without the availability d positioo hold. 

• If the 350 QX3 deviates too far from its intended GPS path when in Return 

Home mode, it will descend using the barometric pressure sensor to maintain 

the descent rate. 

• Once the 350 QX3 has landed In Return Horne mode, it will stop the motors. 

WithGPSOFF 

• The LED will show solid white. 

• The flight mode available will be similar in contra response to AP Mode 

withoutthe availability of position hold. 

• Mitude hold will function normally. 

Loss of GPS Signal 

If the 350 QX31ooes GPS signal in fligh~ it will respond according to the 

following conditions: 

Smart Mode: (Green flashing LED) 

If the 350 QX31ooes GPS signal in flight while in Smart Mode the LED will 

flash green. The stick relativity feature of Smart Mode will niX function. The 

350 QX3 will follow the control stick input direction relative to the pooition and 

orientation of the arc raft rather than the position of the plio~ similar to the 

control response in AP Mode. Return home will niX function. The aircraft will 

still use the pressure sensor to maintain anitude and cootrol rate of descent. 

If GPS signal is reacquired, after receiving 5-10 seconds of reliable GPS 

signal, the Smart Mode functioos return. 

AP Mode: (Purple flashing LED) 

If the 350 QX31ooes GPS signal In flight while in AP Mode the LED will flash 

purple. The quadcopter will not enter GPS position hold when the rig.ht stick is 

returned to center. Return home will niX function. If GPS signal is reacquired 

after receiving 5-10 seconds of reliable signal, AP Mode functions return. 

Loss of Transmitter Signal 

If the transmitter signal is lost for any reason, the 350 OX3 will respond 

according to the followilg oonditioos: 

• If the m!Xors are stq>ped, the 350 OX3 will disarm. 

• If the m!Xors are turning but the 350 QX3 is not flying, it will stop the motors 

and disarm. 

• If the 350 QX3 is flying and has a good GPS lock with a home position set, it 

will activate the Return Home function (rapid red flashing LED) upon the loss 

of the transmitter signal. 

• If the compass is faulty, not connected or if there is no GPS lock, 

the 350 QX3 descends slowly when the transmitter signal is lost 

• If the pressure sensor is niX working, the 350 QX3 reduces power to 

oontrol the decent when the transmitter signal is lost. 
Flight Guidelines and Warnings 

• Always inspect the model before flight 

• Always keep aircraft in sight and under control. 

• Always keep people and pets at least 35 feet (1 0 meters) away when the 

battery is connected. 

• Keep children out of the vicinity of this product at all times. 

• Always use fully charged batteries. 

• Always keep transmitter powered m while aircraft is powered. 

Preparing the 350 QX3 For Flight 

350 QX3 home location 

SAFE Circle'" 

• Always remove batteries before disassembly. 

• Always keep moving parts clean. 

• Always keep parts dry. 

• Always let parts cool after use before touching. 

• Always remove batteries after use. 

• Never operate aircraft with damaged wiring. 

• Never touch moving parts. 

• Always follow the most up to date AMA Natimal Model Aircraft Safety Code. 

1. Power m the transmitter with the flight more set to 

Smart Mode. 

2. Remove the battery hatch. Install a fully charged 

battery pack, connect the blue EC3'" battery coonector 

and reinstall the hatch. 

3. With the quad m a level surfa:e, tum m the power 

switch and allow the 350 OX3 to ini1iaflze. 

If the GPS is enabled, waitfor the GPS signal to be 

acquired (sdid green LEO). 

IMPORTANT: While in Smart Mode, the m!tors will not 

start if a GPS signal has not been acquired. 

4. Move the aircraft to the desired horne location and 

orient the aircraft pointed away from the pilot 

5. Step back CljlprOOrnately 16 feet (5 meters) from the 

horne locatim. 

6. To start the motors, move both sticks into the bottom 

inside comers, then ba:k to center. 

7. The props will begin to spin. The home positioo for GPS 

functions is set and your aircraft is ready to fly. 

Looer the throttle stick fully and hold the bind buttoo to 

stop the motors after flight 

A. CAUTION: When the home klcation is set (step 6), the 350 QX3 must be approximately 16 feet (5 meters) from where the pilot will stand during flight, pointLll ing away from the pilot If the aircraft is pointed in any other direction, the SAFE C¥cle feature will not function as expected and may result in personal injury 

or damage to property. Once the arcraft's motors are started, do not change your position. 

Flying the 350 QX3 

Takeoff 

The thdtle control for the 350 QX3 changes the altitude 

of the quadcq>ter by mCNing the thr!ttle stick abCNe or 

below half throtue. As you move the throttle stick abCNe 

half, the quadcor.ter will climb. As you mCNe the throtue 

stick below half, the quadcopter will descend. The farther 

away from half you move the thdtle stick, the faster the 

quadeq>ter will dimb or descend. 

To takeoff, slowly oovance the thdtle to slightly above 

half. The 350 QX3 will slowly climb. When the quadeq>ter 

re<r:hes the desirro height, ease the thdtle ba:k to half 

to hold that altitude. 

Explore the fligtt envelope of the 350 OX2 AP in 

Smart Mode without fear of losing orientation. See 

the diagrams in the Flight Males Explailed section for 

more details on the aircraft's functim in Smart Mode. 

In Smart Mode, the direction the aircraft is pointing 

does not affect the cmtrol, and the aircraft's respoose 

relative to you (the pilct lcx:atiorl] does nit change with 

orientation. AP Mode operates more like a conventional 

RC helicopter or multicopter. 

NOTICE: If you begi11D lose cortrol, release the cortrol 

sticks and the model will self-level. 

Pay dose attentim to the LEO while flying.lf at CllY time 

the LBJ indicates the fight battery voltage is low (below 

1 0.6V), as shown In the LEO code sectim,land the 350 

QX3 immediately and charge the fight battery. 
Landing 

To land the 350 OX2 AP there are two q>tions: 

• Guide the arcraft to where you wish to land. Slowly 

reduce the throttle below half to descend Clld land. 

When the quadcopter has ICilded, lower the throttle 

completely and press the bind button to stop the 

motors. 

• Activate the Return Home functial to return the 

350 QX3 to the assigned home location and land 

automatically. 

A CAUTION: Do not activate the Ret1111 Home 

Lll function if the 350 QX3 is showing the klw 

battery indication. Manually land the ai'craft 

Immediately. 

NOTICE: Return home will only function if the 

350 QX3 has GPS lock. 

• When this feature is activated, the LED will rapidly 

flash red. 

• The 350 QX3 will fly tack to its assigned home location Clld !ald. Mer lancing, the mOO>rs may take up 

to 5 seconds to stq>. 

• The return home function may be CC11Celled by 

switching tack to Smart or AP Mode using the flight 

mode switdt 

• To restart the pro~ alter landing in Return Home, 

move bo1h lr.rlsmitter sticks to the bottom inside 

comers Clld then back to eerier. 

A. CAUTION: The 350 QX3 will not recognize the 

LU SAFE Cir:le feature when Return Hane is used. 

Activating Return lbme may cause the 350 QX3 to 

fly directly CNer the pilot if the aircrctt was flown to a 

position behild where the pilot was s1andilg when the 

home position was established. 

After Your Flight 

1. Tum off the power switch on the 350 QX3. 

2. Tum off the power to your transmitter. 

3. Unplug and remove the battery from the 350 OX3. 

Recharge ywr battery following the charging 

warnings Clld nstructions. 

A. CAUTION: Mvays disconnect the U-Po bat-

£.U tery from the aircrltt when nd ~ to avoid 

CNer-disch<rgilg the tatery. Batteries discharged to a 

vatage beklw the k>west apprCNed voltage may becane 

dcllla~d. resultilg In loos ct perfoomn:e Clld potential 

tire when batteries are charged. 

Location alert 

The motors will be€p under the following conditia1s: 

• N. any time the props stq> spinning after they have 

been initialized. 

• After 30 secoros of no throttle lnplt {Waling armed 

a1 the ground). 

This will alert the pilot to the location of the aircraft if it 

lands in a locatKm with low visibility. 

Beeping will contime until the battery can no longer 

supply enough power to the motors. 

If the quadcopter crash lands and one or more motors 

are stopped by an impact, the quadcopter enters 

emergency mode. The LED will flash white and the 

motors will beep loudly. 

Pdivating R:turn H:xre 

M:>tor Sop 
Rudder right 

Bind In pressure calibration mode 

Compass calibration procedure: 

NOTICE: The folklwing procedure has to be 

completed within 30 seconds after enterilg compass 

calibration mode. 

l.Power the transmitter. 

2.Power on the 350 QX3 and face the 

quadcopter pointing North. 

3.Cycle the top lett transmitter switch completely 

4 times as shown at the left 

4.The 350 QX3 indicates it has entered compass 

calibration mode by slowly flashing the LED orange. 

5.When the LED begins to flash rapidly, complete 

all 4 rotations of the 350 QX3 as shown in the 

illustration at left within 30 seconds, rotating the 

quad 45° counterclockwise between each rotation. 

6.Hold the quad level, facing North and check the LED. 

G'een = FS:Iy 

Fe:! = ~ O::mpass C31ibratim 

Accelerometer calibration procedure: 

l.Power on the transmitter and 350 QX3 and 

place the quad on a flat, level surface. 

2.While holding the bind switch on the transmitter, 

cycle the top left switch 4 times as shown at the left. 

3.The 350 QX3 wUI emit a series of slow tones 

followed by a series of rapid tt11es, indicating the 

calibration has started. 

4.Do not move the 350 QX3 while it performs the 

accelerometer calibration procedure. 

5.When the procedure has completed, the 350 QX3 will 

emit a "happy" tone and the LED will display green 

indicating the calibration was successful. If it emits a 

"sad" tone and the LED displays solid red, repeat the 

calibration procedure. 

Pressure Sensor Calibration 

The pressure sensor is calibrated at the factory on the 

350 QX3. Recafibration should only be necessary if you 

reploce the sensor. 

1.Piace the 350 QX3 in a cold area. Allow it to remain 

in the cold for 30 minutes or more. 

2.Bring the 350 QX3 out of the cold and into a warm 

area. The greater the difference in temperature 

between the cold and warm areas, the more accurate 

the calibratKm will be. 

3.Ensure your transmitter is off and then connect a 

flight battery to the 350 QX3Power the 350 QX3 ON 

and let it initialize. The status LED will remain off. 

4. Hold the 350 QX3 upside down until the status LED 

flashes blue, ildicating it has entered bind mode. 

5. Set the quadcq>ter back upright 

6.Bind your transmitter to the 350QX3 with the rudder 

stick fully to the right The LED will blink red and blue 

rapidly. Leave the aircraft and transmitter powered 

on and allow the aircraft to warm up for 10 minutes. 

Do not move the aircraft during this time. 

?.After 10 minutes the motors on the aircraft will beep 

to indicate the calibration is complete. Power off the 

aircraft and then your transmitter. 

If the 350 QX3 displays the failed calibration code, power 

off the aircraft em then begin the pressure calibration 

procedure again. 
If you need to update the fi nnw are in your quadcopter, downloal the PC user 

interfa:e* at http://www.bladehelis.com/Prodlnfo/Ries/350_QX_PC_Intertace.zip 

Follow the on-screen instructions for inslallation and operation. 

This graphic user interface allows you to monitor systems, adjust system settings 

and calibrate sensors. 

Sensor Information Screen 

• See status of all sensors and speed controls at a glance 

• Check battery voltage and accelerometer operation 

Calibration Screen 

• Galibrate accelerometers and camera gimbal 

• Review instructions for compass sensor and OX4 transmitter calibration 

• Adjust goo-referenced flight boundaries 

Troubleshooting 

Problem Possible Cause 

350 QX3 will not initialize The quadcopter was moved during initialization 

Heavy overcast 

Solar flares 

GPS will not lock Aircraft is indoors 

Objects blocking dear access to the sky 

GPS Screen 

• See number of available satellites and signal strength 

• Verify latitude, longitude and altitude indications 

• Verify GPS accuracy 

Device Information Screen 

• See programming software version 

• See quad firmware version and vehicle 10 

• Update firmware 

*Requires USB lnterfa:e (BLH7840) sold separately. 

Solution 

Re-arm the aircraft, being cautious to avoid any movement during 

initialization 

Wait for lighter doud cover <fld re-lock or disable GPS 

Wait for disturbance to subside or discille GPS 

Disable GPS 

(under a metal cover, inside a car, tall buildings, etc ... ) Move aircraft to a clear area 

Video transmitter nearby Re-position or remove video transmitter 

Raised threat level by the U.S. government Wait for threat level to be reduced or disable GPS 

GPS has reduced resolution The GPS antenna coaxial cable is nicked, cut 

or otherwise damaged Replace the GPS antenna 

The compass has been exposed to a magnet Move the aircraft away from the magnetic source. In worst case 

scenario, the oompass may need to be replaced 

GPS functions not operating The GPS antenna coaxial cable is nicked, cu~ or otherwise Replace the GPS antenna 

properly damaged 

The aircraft is behaving erratically Rebind the aircraft with the GPS function off 

Aggressive flight Fly level for a few seoonds before using other modes 

GPS lock has not been acquired Ensure GPS antenna has dear view of sky and GPS lock has been 

acquired 

Motors won't start 'Compass error' is indicated by the LEO See below for troubleshooting 'oompass error' 

Incorrect start up procedure Review start up procedure in manual 

Blinking yellow led 

Model is too close to a metal object or metal surface Move model away from large metal objects or surfaces 

'compass error' ildication Compass needs calibration Galibrate compass 

(see calibration reference) 

Galibrate OX4 transmitter 

Steady beeping, Throttle trim is not centered (AP or RTF version) motors won't start 

Center throttle trim (BNF version) 

Weak GPS signal Check GPS antenna mast is extended 

Compass needs calibration Galibrate compass 

Won't hold position in hover (see calibration guide) 

Accelerometers need calibration Galibrate accelerometers 

(see calibration guide) 

Motors take a long period of 

time to shut off after completing Pressure calibration is needed Refer to the Pressure Sensor Cali>ration section of this manual 

return to home 
Front 

Back 

Bottom 

CG02 ----+-1--1! 

camera/Gimbal 

(AP Combo) 

Flight Battery Door ----...._