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AR7210BX User Guide

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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 properly followed, create a possibility of physical property damage AND a little or no possibility of injury.CAUTION: Procedures, which if not properly followed, create the probability of physical property damage AND a possibility of serious injury.WARNING: Procedures, which if not properly followed, create the probability of property damage, collateral damage, serious injury or death OR create a high probability of superficial injury.

NOTICEAll instructions, warranties and other collateral 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

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

can result in damage to the product, personal property and cause serious injury. This is a sophisticated hobby product and NOT a toy. It must be operated with caution and common sense and requires some basic mechanical ability. Failure to operate this Product in a safe and responsible manner could result 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 attempt disassembly, use with incompatible components or augment product in any way without the approval of Horizon Hobby, LLC. This manual contains instructions for safety, operation and maintenance. It 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 injury.

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

WARNING AGAINST COUNTERFEIT PRODUCTS Thank you for purchasing a genuine Spektrum product. Always purchase from

a Horizon Hobby, LLC. authorized dealer to ensure authentic high-quality Spektrum product. Horizon Hobby, LLC. disclaims all support and warranty with regards, but not limited to, compatibility and performance of counterfeit products or products claiming compatibility with DSM or Spektrum technology.

IMPORTANT: When using the Spektrum AR7210BX with larger helicopters (500-size and larger): It is necessary that you connect a DSMX remote receiver (not

included) to the Spektrum AR7210BX before binding. See Receiver Installation for more information.

CAUTION: DO NOT use DSM2 remote receivers with the Spektrum AR7210BX. Doing so will cause the helicopter to crash, resulting in property damage and injury.

WARRANTY REGISTRATIONVisit www.spektrumrc.com/registration today to register your product.

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Introduction

Dear Customer:

The Spektrum AR7210BX combines the proven BEASTX flybarless technology with a Spektrum high-speed 2048 receiver. This combination provides the ultimate in performance and simple installation. The Spektrum AR7210BX is perfect for ALL sizes of flybarless helicopters. Using an optional DSMX remote receiver adds necessary path diversity for even the largest electric, glow, gas and turbine-powered helicopters.The Spektrum AR7210BX is compatible with all Spektrum and JR aircraft radios that support DSM2 and DSMX technology.

The Spektrum AR7210BX provides maximum agility and precision for intermediate 3D and professional pilots.

With the Spektrum AR7210BX you have purchased an electronic control system that continuously detects and controls the attitude of your helicopter and the control commands from the pilot. As a result, the system is constantly aware of how the drive system will be used. The Spektrum AR7210BX features an RPM Governor system that uses this advantage to control the motor RPM. Contrary to conventional motor control systems that only monitor motor speed, the Spektrum AR7210BX can react sooner to speed changes. A separate governor system is no longer required for nitro helicopters and electric models can be used with a simple, inexpensive speed controller without additional features such as soft start or governor mode. The desired rotor speed is specified via the transmitter and Spektrum AR7210BX controls the throttle servo or speed controller accordingly, so that the predetermined head speed is maintained from takeoff to landing. The Spektrum AR7210BX offers an integrated soft start for spooling up the rotor before takeoff and a quick start to regain head speed in a controlled manner when practicing autorotation maneuvers. The system is suitable for both electric and nitro/gas helicopters. Using the proven Easy Setup concept no additional equipment is required for programming (apart from your transmitter) and the initial setup completes within minutes.

Furthermore, the Spektrum AR7210BX has an optional integrated artificial horizon through the use of SAFE technology. This ensures that Spektrum AR7210BX can determine the absolute position in space of the helicopter on the roll and pitch axis, regardless of the position in which the helicopter is currently located. SAFE technology can be used with five different modes:

Bail Out Rescue Mode with Collective Pitch Bail Out Rescue Mode without Collective Pitch 3D Mode with Collective Pitch 3D Mode without Collective Pitch Flight Trainer Mode

The optional SAFE technology provides an additional margin for recovery while you are learning new maneuvers and significantly reduces the probability of crashing. If SAFE technology is switched on during flight, the helicopter will be oriented horizontally, depending on the selected mode the helicopter can be brought to a safe position with the press of a button, i.e. if the pilot becomes disoriented.

SAFE is not included in the AR7210BX, but is available at additional cost through the StudioX software.

Your Spektrum Team

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Box Contents Spektrum AR7210BX Bind Plug Mounting tape Adjustment tool Instruction Manual Program Guide

Optional Parts DSMX Remote Receiver (SPM9645) USB interface (SPMA3030) Gas/Nitro RPM Sensor (SPM9560)

Preflight Safety Precautions and Checklist Readallsafetyprecautionsandliteraturepriortouseofthisproduct. Alwaysensurethereceiverandtransmitterareproperlyboundbeforeflight. Alwaysensurebatteriesarefullychargedandhavepropercapacityfortheflighttimeyouintend. Alwaysexitprogrammingmodebeforeflying. Alwaysusetheincludedmountingtapeandensureitisproperlymountedandingoodconditionbeforeeachflight.

Poweryourtransmitteronfirstandthenthereceiver. AlwaysallowtheSpektrum AR7210BXtoinitializebeforeflight. Confirmthecyclicandtailrotorservosdonotbindatthefullrangeofthethrow. Performacontroltest,ensuringcontrolsmoveincorrectdirections.

WARNING: For first-time use or when making mechanical changes that involve throw, always ensure you reset the servo limits to prevent binding. Not doing so will

cause the helicopter to crash, resulting in property damage and injury.

Status LED

Menu Point LED

Setup Button

SwashplateCyclic Gain

Swashplate Direct Cyclic Feed Forward

Tail Dynamic

Features IntegratedBEASTXflybarlesstechnologyandSpektrumreceiver OptionalDSMXremotereceivercapable SmartSafefailsafesystem FlightLogandTelemetrycompatible(optional) 2048Resolution High-speed11msoperationwhenusedwithcapabletransmitters

Applications Allsizeelectric,nitro/gasandturbineflybarless3Dhelicopters Scaleflybarlesshelicopters(multibladecompatible)

CAUTION: Do not use with flybar helicopters or airplanes.

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SpecificationsType: DSM receiver and BEASTX flybarless technologyChannels: 69 (8 channels are available, however, Channel 5 is only used as an internal gain channel for the tail gyro/operating SAFE).Modulation: DSM2, DSMXMain Receiver Dimensions: 36mm x 28mm x 13 mm/1.42 in x 1.1 in x .51 in

(LengthxWidthxHeight)Main Receiver Weight: 0.66 oz (18.6 g)Voltage Range: 3.5 to 8.5VResolution: 2048Frame Rate: 11msCompatibility: All DSM2 and DSMX aircraft transmitters and module systems

SPEKTRUM AR7210BX Power System RequirementsAll flybarless gyro systems require uninterrupted power.

During even a short power interruption/brownout, the flybarless unit must reboot and reinitialize.

CAUTION: If a power interruption/brownout occurs during flight, a crash will occur. It is your responsibility to ensure the Spektrum AR7210BX has sufficient power

without interruption.

Some of the power system components that affect the ability to properly deliver adequate power include:

Theswitchharness,batteryleads,servoleads,regulatorsetc. Receiverbatterypack(numberofcells,capacity,celltype,stateofcharge) TheESCsBECcapabilitytodelivercurrenttothereceiverwhenloadisplacedonthe

servos. This is the number one cause of power interruptions in electric helicopters.

The Spektrum AR7210BX has a minimum operational voltage of 3.5 volts. Test the power system according to these guidelines:

Recommended Power System Test GuidelinesPerform the following test with a voltmeter. The Spektrum Flight Log or Telemetry Modules (TM1000/TM1100) work well for this test.

Plug the Flight Log into an open channel port in the receiver and, with the system on, load the servos by applying pressure to the swashplate with your hand for 3 minutes. Monitor the voltage at the receiver. It is important to load the swashplate for 3 minutes. If a voltage regulator becomes hot, it can lose its ability to supply current. An alternate method is to power on the system and rapidly move the control sticks (stir the sticks) with no load o