Bis dato hatte ich in meinen Autos immer Brushed-Systeme verbaut welche in Turns angegeben sind. The KV rating refers to the rpm (revolutions per minute) the motor will turn on 1V (one Volt) with no load on the motor. Brushless RC motors are far superior to their … Higher T values, like 27T, will be a higher torque, lower Kv motor. A low kV motor will turn a large (or aggressively pitched) prop slowly. It is a Delta wound 8T (It means 8 turns) quad wind. ( Log Out / The turn rating is inversely proportional to the power generated by the motor. RC Basics: Is An External BEC What You Need? A 2200 KV motor on 6S LiPo batteries means 55440 rpm with no load. just remember lower Kv means more torque, higher Kv means more rpm, one more thing disregard the "turn" rating of brushless unless yu ahve no other option, some manufactures use turns to sell bls motors, some use Kv, while some use both, the ones that use both will list sensored bls in turns and sensorless in Kv. Let’s look at a 1000kV motor. Well they both have there place and time. As the number of turns increases within a motor, the Kv of the motor decreases. Im not alone. These New Technologies Are A Floating Drive-on Dry Lifting System Which Makes Existing Technology Obsolete. Written by Matt Robbs. Simply put, kV is just a measure of the speed with which the motor turns. A low kV motor will turn a large (or aggressively pitched) prop slowly. There is diminishing returns of increasing pole counts, and increasing labor costs with each. Each kv is 1 rpm per volt. Brushed, Turns & KV. Top. So the basic idea of both type of motors are the same. Depending on the manufacture a 17.5 could be anywere between 2,500 to 3,100 kv. KV vs Turns Well they both have there place and time. (Less simply put, kV is the “unloaded RPM of the motor at 1 volt.”) Specs for a typical brushless motor. This has an advantage, and that is that the higher the … Brushless servo motors electromate dc motor tutorial calculations feigao 540 brushless motor 54084xl the largest fpv radio control Brushless Motors Turns Vs Kv Rating Rc Car ActionModel S Brushless Motor Rc UniverseThe Ner S To Drone Motor Essentials OmegaCan Someone Explain Brushless Motor Sizes R C Tech ForumsBrushless Motor Rpm Vs Cells General Electric Msuk… Read … This is where a turn represents the wire that is wrapped in full loop along the direction of the permanent magnet. y2kgtp Approved Member Posts: 422 Joined: Thu Dec 11, 2008 5:04 am Location: Deltona, FL. That’s a great use for a wheel that could be copied by a great many places with harbours. Brushed, Turns & KV. Kv rating and number of turns. Kv describes the RPM (revolutions per minute) a motor does per Volt that is put into it. Change ), You are commenting using your Twitter account. Whilst in a brushed motor there is typically a red positive and a black negative wire connected (as seen in the photo above), brushless motors rely on the ESC to switch up the power signals sent down these … KV is in proportion to Volt, 2 volts will rotate twice value of KV. Motors need to be compared in turns as opposed to Kv. These brushes are typically made of … Turns, KV. Re: Brushless Kv rating vs gearing? Create a free website or blog at WordPress.com. ( Log Out / The availability of different windings or turns is what allows RC hobbyists to precisely select … Here the airgap, type of magnetmaterial, magnetic design and material of the stator(the part the motorwindings are in) and so on determine to how many kv per turn the motor comes out to be at. In the wheel’s first 3 months of operation it collected around 59,000 Kg of debris. I'm running a SC10 4x4 on a pretty tight clay indoor track. The lower power miniature flying robots with 1S lithium-polymer (LiPo) batteries are the exceptions. An … I realized with my research with these 3 different brushless setups I wasnt alone in the common question of What does this motor in KV translate to a motors Turn???? The motor I am talking about is of course the brushless one. Grund dafür war, dass Brushed- Systeme weniger kosten und auch weniger anfällig gegen Schmutz … Number of turns and KV don't relate unless you are talking about the exact same motor design in both cases. Brushless servo motors electromate dc motor tutorial calculations feigao 540 brushless motor 54084xl the largest fpv radio control Brushless Motors Turns Vs Kv Rating Rc Car ActionModel S Brushless Motor Rc UniverseThe Ner S To Drone Motor Essentials OmegaCan Someone Explain Brushless Motor Sizes R C Tech ForumsBrushless Motor Rpm Vs Cells General Electric Msuk… Read … So turns with a lower number means a faster motor. Below I will explain the different Brushless RC Motor Specs such as Kv, Motor turns, Watts, Amps, etc. Lower turn motors have less torque but more RPM so '15T' motors are often fitted to beach buggies and other zippy models such as the Jumpshot below. *Free WORLDWIDE shipping for qualified items. The lower kv equals lower rpm, which means less heat, which means more torque. If Kv is like horsepower, then Turns is the physical attribute of a motor. Now you need to make sure you choose the right Turn rating for your car. Brushless DC motor control techniques. Kv numbers help explain the number of theoretical rotations you can expect from inputting 1 volt of power to an unloaded motor, aka RPM per volt. These techniques go well beyond the time honored 6-step trapezoidal drive and include sinusoidal drive and the more advanced techniques such as field oriented control. it is also NOT advised to compare t to Kv as different manufactures will have a … There is no absolute kv rating that corresponds to motor turns. There are coils and magnets in a brushless motor. For the original version including any supplementary images or video, visit http://www.rccaraction.com/blog/2011/08/05/brushless-motors-%E2%80%93-turns-vs-kv-rating/, An improper selection may lead to multiple problems during production, resulting in market delays and increased design costs. A higher turn number means more wire and thus more resistance, resulting in a slower motor. The availability of different windings or turns is what allows RC hobbyists to precisely select the best for their application. Whether ripping through the fields or negotiating technical terrain, this power plant has you covered! One motor is more powerful than the other and also works better than the other. the lower the number the faster the motor will be. For example, a 9000Kv motor would be faster than a 2200Kv motor. Discussion Lower or higher kV for thrust? The 55t TorqueMaster 540 Expert motor for crawling is our best suggestion. (Less simply put, kV is the “unloaded RPM of the motor at 1 volt.”) Specs for a typical brushless motor. ( Log Out / http://www.rccaraction.com/blog/2011/08/05/brushless-motors-%E2%80%93-turns-vs-kv-rating/, http://www.edn.com/design/sensors/4406682/Brushless-DC-Motors—Part-I–Construction-and-Operating-Principles, http://www.ecnmag.com/articles/2009/11/brushless-dc-motor-control-techniques, http://www.nzherald.co.nz/technology/news/article.cfm?c_id=5&objectid=11263774. Number of Turns on a Brushless Motor. Keeping all other parameters constant, the Kv rating is inversely proportional to the number of turns in coil. For example: let's assume we have a 5055-3000kV Brushless Outrunner Motor. -Associated LRP Vector X-11 10.5 Turn Censored Brushless Motor and Ai Pro … The turn rating is inversely proportional to the power generated by the motor. The kV rating on a motor is like gearing on a car. Brushed vs. brushless motor drones: Their usage . Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. I cannot go any higher in gearing, I'm maxed on my gearing at 11p/62s. The vanilla RS-540 has 27 turns. When looking for a motor for an RC vehicle, the Kv value is what you will pay attention to. Turns, KV. The same motor will develop about the same power irrespective of it's kV rating when driving a suitable prop (assuming the same battery voltage). Brushless DC (BLDC) Motors • Brushless DC Motors are a type of synchronous motor – magnetic fields generated by the stator and rotor rotate at the same frequency – no slip • Available in single-phase, 2-phase, and 3-phase configurations. as for KV's the only thing i know is the lower the KV number the cooler the motor will run. Beyond selecting 'brushless' or just reading the description when browsing our web-store, the tell-tale sign of a car with a brushless motor are three or more wires running from the ESC to the motor as seen below. In ... Kv: 5700: Max. Choosing a motor with the wrong Kv value can ultimately destroy your entire power system, including batteries, ESC and the motor itself. Lower T values, like 4.5T, will results in a much faster car, as the torque is lower but the Kv will be higher. Brushless Motors use different Poles designs, Singe Double Triple Poles to increase and decrease RPM/Torque Further more. How do I tell the difference between the two?? In order to make the motor spin, we run electrical current through the coil which will create magnetic force and attract the magnet. some one with more knowledge about motor kv will fill in what i missed. Axial 3150KV 4-pole brushless motor provides the perfect amount of torque and speed for this rock racing monster. Faster (lower) turn counts, Pro series brushed motors, and brushless motors can break parts more easily. This is a theoretical value and brushless motors must not be run without any load. Answer: “Kv” refers to the constant velocity of a motor (not to be confused with “kV,” the abbreviation for kilovolt). RPM = Kv * voltage torque = Kt * current Kt * Kv = 1 (IN THE MKS SYSTEM) or some crazy constant in other systems. So turns with a lower number means a faster motor. Generally speaking, the difference would indicate whether the system, or motor, is sensored or non-sensored. Brushed and brushless motors are the two main types of motors for RC cars and virtually any other RC vehicle (plane, drones, boats, etc.). Re: Brushless Turns Equivalents to Brushed Turns. Before motors started using Kv … KV vs Turns. But we will get to that later. Simply put, kV is just a measure of the speed with which the motor turns. Choosing a motor with the wrong Kv value can ultimately destroy your entire power system, including batteries, ESC and the motor itself. Re: KV rating vs Turns in a motor? Da ich mein Rally-Auto mit einem Brushless-System ausrüsten möchte, bin ich auf Informationen gestoßen mit denen ich nicht wirklich was anfangen konnte. I have run mod motors from a few different manufacturers and all 4.5s go similar as do 3.5s. I realized with my research with these 3 different brushless setups I wasnt alone in the common question of What does this motor in KV translate to a motors Turn… The 8 turn motor will have to draw twice the current of the half rpm/V 16 turn motor to produce the same amount of torque. most people run either a 3500kv VXL motor up to a 5700kv Mamba motor in the rusty's. that's a good chart for comparing Kv to brushless turns personally, I am looking for the brushless equivalent to brushed 19t down to 12t but, i think any other info will be beneficial to who ever visits the thread . Higher kv, more rpms, more heat, less produced torque. Post by … The winding pattern described in this tutorial (called an ABC wind - ABCABCABC as you go around the stator) works for any brushless motor with 9 stator teeth and 6 magnets. Also, KV is not to be confused with kV which means kilo-Volt (1000 Volt). Da ich mein Rally-Auto mit einem Brushless-System ausrüsten möchte, bin ich auf Informationen gestoßen mit denen ich nicht wirklich was anfangen konnte. It is not overly powerful on 2 or 3s LiPo and is less likely to break parts. An electromagnetic field is created when the winding of the motor receives a current supply. the lower the number the faster the motor will be. Before motors started using Kv values as a standard, it was typical of motors to show turn values. The “kV” factor in brushless motors. A higher turn number means more wire and thus more resistance, resulting in a slower motor. If you compare a 17.5T motor of company x with a similar 17.5T motor of company y you might guess the x … Change ), Brushless Motors – Turns Vs. Kv Rating – Rc Car Action. RPM: 100,000: Size: Length: 49.5mm Diameter: 36mm: Weight (w/wires): 202g / 7.1oz: Shaft Size: Length: 15mm Diameter: 1/8" (3.17mm) Mounting Hole Specifications: M3 @ 25mm: Cooling Fan: Optional - coming soon! The winding pattern described in this tutorial (called an ABC wind - ABCABCABC as you go around the stator) works for any brushless … For the original version including any supplementary images or video, visit http://www.ecnmag.com/articles/2009/11/brushless-dc-motor-control-techniques, A floating boom funnels debris, such as logs, bottles, tires, takeaway cups and whatever else comes along to the front of the conveyor where it is scooped up by the conveyor belt before it falls into the dumpster barge. What does Kv tell us? Kv=1090 * 32T ~= 35000 so, 35000/28T ~= 1250Kv) January 2008 Wayne Rademacher Motor formulas - Acronyms Acronyms: Rm = Resistance value of the motor, derived from the guage of wire used. Turns, KV. Every time we charge and discharge the coil, induction happens. The same motor will develop about the same power irrespective of it's kV rating when driving a suitable prop (assuming the same battery voltage). Here is a chart that I made based on hours of research and best accurate information from the manufactures. The number of turns indicates how much wire is wrapped inside the motor. Sign up to receive emails about ATees updates and offers. RC Motor - Brushless vs. As mentioned earlier, brushed motors have brushes inside them. A higher turn number means more wire and thus more resistance, resulting in a slower motor. Bis dato hatte ich in meinen Autos immer Brushed-Systeme verbaut welche in Turns angegeben sind. Brushless Motors – Turns Vs. Kv Rating – Rc Car Action May 30, 2014 johnsonzsde Leave a comment. When the shaft turns the “pushing energy” transfers from winding to winding in a circular motion causing the motor shaft to rotate. People do that because they are familiar with turn ratings of brushed motors and use that to make sence of the brushless world. Hall-Effect • If a current-carrying conductor is kept in a magnetic field, the magnetic field exerts a force on the moving charge … Here is a nice video to simplify things before we dive right in. However when you fire the coil late when it’s really close to the magnet, then you will increase the motor’s torque, but reduce RPM (KV). The number of turns indicates how much wire is wrapped inside the motor. We use number of turns to designate the number of actual winds on our sensored motors. Its rating (1000kV) means that it will spin at 1000 RPM per volt. RC Motor - Brushless vs. 3. Kv-Rpm constant: Kv * turns = motor constant, (ex. Brushless motors use a standard numbering scheme to describe their physical size and kV rating. The number of turns indicates how much wire is wrapped inside the motor. Brushless Motro KV To RPM What’s the KV meaning? What they seem to have done is turn the term Turns into a rough estimate for brushless now. power = torque * RPM = volts * current (with some constants to fix units of measure) Give two identical motors but motor A has good magnets and motor B has cheap magnets such that its Kv is twice motor A. This article will examine these trends with an eye toward determining what Brushless DC motor control techniques work best for a given application. A typical instance is the Tiny Whoop. If Kv is like horsepower, then Turns is the physical attribute of a motor. most people run either a 3500kv VXL motor up to a 5700kv Mamba motor in the rusty's. The “kV” characteristic of the motor of a Brushless RC car is a very important parameter to take into account since it normally appears next to the turns of the motor winding. Most 13.5's come in around 3000-3200kV, but they can range from 2400kV (Viper) to 3600kV (Tekin Redline Gen2 RPM) and one claiming 4600kV (Trinity Maxzilla). Brushed DC Motors Explained. Brushless motor ratings and Specs come at us with a few different names and each means something different. Change ), You are commenting using your Facebook account. Rotor The rotor of a typical BLDC motor is made out of permanent magnets. The winding then pushes and repels against a permanent magnet to cause the shaft to turn. The Kv rating of a brushless motor is the ratio of the motor’s unloaded rpm to the peak voltage on the wires connected to the coils. On the track they feel different but turn around the same results in lap times. Turns Look inside a brushless motor, and you’ll see a cylindrical magnet (that’s the rotor) which fits inside what looks like a wire nest (that’s the stator). Found a reference on the 13.5 Pro (#ORI28251) being 3200kV, not sure how accurate it is but there's not much on the Orion motors. The kV rating on a motor is like gearing on a car. Put simply, a 4.5T motor is faster … Depending upon the application requirements, the number of poles in the rotor may vary. So turns with a lower number means a faster motor. And this has not been noticed even back then in the days 2 … The two examples you gave are different motor and speed control designs. Finally, there is also an increasing interest in driving Brushless DC motors using a sensorless technique, even for applications that operate at zero speed. Re: KV rating vs Turns in a motor? Keeping all other parameters constant, the Kv rating is inversely proportional to the number of turns in coil. The energy is then transferred from one winding to another that ultimately causes the motor shaft to spin continuously. Im not alone. But we will get to that later. Well, it is related to the power out from a motor. Here is a chart … Found a reference on the 13.5 Pro (#ORI28251) being 3200kV, not sure how accurate it is but there's not much on the Orion motors. turns in a brushless motor is just like turns in a brushed motor. On one hand a higher pole count motor gives more room for rotor diameter, but on the other hand steel losses limit top speed so the final power out becomes a wash without better lamination materials ($$$). Doubling the current passing through the winding resistance will increase resistive power losses 4 times (P = I^2 *R), so while the ½ rpm/V motor will have 4 times the winding resistance, only having to supply half of the current means that both motors have the same amount of resistive … [3000] The numbers after the dash represent the kV rating of the motor; in this example 3000kV. Brushed would have Single, Double, Triple Winds to increase and decrease RPM/Torque. Electric Motor Design and Construction Forums; Magazine; Blogs; Classifieds ... the fastest modelairplane used a 7 x 11,5 inch prop and turn it at 29000 rpm doing about 420 km/h it´s 262 mph.Last test with a different prop size where done with a 10 x 20 propeller turning only 17000 rpm doing the same speed but the accleration as a result of higher trust is … We will investigate turn performance by stating that all other motor parameters are unchanged. People do that because they are familiar with turn ratings of brushed motors and use that to make sence of the brushless world. Currently 49715 radio control cars, upgrades and parts in stock, representing 1080 radio control car models.Unbeatable prices, unmatched shipping & customer service! A 2200 KV motor on 6S LiPo batteries means 55440 rpm with no load. Generally speaking the more Kv a motor has, the more RPM and more power. Turns in a brushless motor Turns is an expression that refers to the amount of windings that are used are per coil. 1Kv is 1 revolution per minute meaning that apply 1 volt to an unloaded motor. Brushless motor drones are, by all accounts, the more loved option; the motors here are utilized in practically a wide range of flying machines. AsiaTees Hobbies Co. Ltd., 30 Tsiu Keng Pang Uk, Sheung Shui, Hong Kong. KV is related to the torque level of the motor, what’s the torque? Technically speaking, brushed and brushless motors apply a similar working principle. Change ), You are commenting using your Google account. Each kv is 1 rpm per volt. The lower kv equals lower rpm, which means less heat, which means more torque. A higher turn number means more wire and thus more resistance, resulting in a slower motor. For more than a decade Castle has been providing award winning brushless sensorless motors to R/C enthusiasts worldwide. It means when we give the coil current, it will take time to build up the magnetic field and reach ideal level, when we stop providing current, it will also take time for the … The kV rating (not to be confused with kilo-volt) is the RPM of the motor (k) per volt (V) with no load. A turn represent the copper wire making one complete wind within the motors armature. I see the body magnetic For Brushless DC motors, magnetic fields are generated by magnets mounted directly on the rotor, united states and by coils in the stator. The vanilla RS-540 has 27 turns. turns in a brushless motor is just like turns in a brushed motor. • Long can design for added torque BLDC Motor Rotors. Kv rating is used for brushless motors. For this tutorial, I will be using Dynam E-Razor 450 Brushless Motor 60P-DYM-0011 (2750Kv). A manufacture that sells electric motors, typically has a range of windings available for purchase. The KV rating refers to the rpm (revolutions per minute) the motor will turn on 1V (one Volt) with no load on the motor. Electric On-Road - Brushless motor turns and Kv rating - I've always been under the impression that all brushless motors of the same turn (ie, 10.5, 13.5, 17.5, etc) are relatively the same. The long can design provides a massive amount of power, especially when powered by 3S. It is a Delta wound 8T (It means 8 turns) quad wind. Crawlers would usually use a high T-rating motors, while touring cars and drift cars would go with low T-rating motors. Below gives you a general idea of the amount of Turns being generated to RPM: Tags :Motor, RC Basics, tutorials, Turns, kV rating, Share:http://asiate.es/read?l=DW_5P886FA8, Boom Racing 1.9 Milage Classic 3.82x1.0 Gekko Scale Crawler Tire, Boom Racing Muscle Winch With Free Spool Unit, Boom Racing 1.55 x 4.19 Inch 2-Stage Crawler Tire Foam Inserts, TRASPED Releases GM Hummer H1 1/10 4WD Crawler, TRC Terra X™ PRO 5-Pole 540 High Performance Brushed Motors, JX Servo High Voltage 8.4V Mini Waterproof Metal Gear Servo, Boom Racing 1.9 SP Road Tracker Gekko Compound 3.82x0.94 Inch, 6 New Colors w/ Matching Remote For Turbo Racing 1/76 MINI Car, Carisma Scale Adventure 1/24 Ford F-150 And Jimny J4 Yellow Color, Hobby Plus 1/18 CR18 Rubicon And Wagon Pickup RTR Crawlers, RC Basics: Guide To Help You Understand More About RC, RC Basics: [Video] How To Install A Winch And Controller, RC Basics: RC Race Craft - Mounting Tires. When we refer to a winding, we are talking about a motor turn. The Kv rating of a brushless motor is the ratio of the motor’s unloaded rpm to the peak voltage on the wires connected to the coils. This motor constant is important as it is one that is used very frequently. So you now tend to look at Turns as a rough ball park. There are more parts in a sensor based, slotted motor … Non-sensored motors do not have winds that can be counted, so they use Kv. To give an idea, .. crawlers engines have somewhere between 35 and 55 turns. Its rating (1000kV) means that it will spin at 1000 RPM per volt. For the original version including any supplementary images or video, visit http://www.nzherald.co.nz/technology/news/article.cfm?c_id=5&objectid=11263774. Kv rating is used for brushless motors. For brushless motors, you would measure the RMS voltage between any two leads. For brushed DC motors, you would measure the voltage between the two motor leads. Radio Control Car Hobby Store & Online News Magazine, © 2001-2020 Radio Control Car Hobby Store & Online News Magazine, Axial Original Products Shop Axial Factory Products. I'm running a 4.5T 540 Turnigy Trackstar motor with a Mamba Max Pro esc. … A speedpassion 3.5 has a Kv rating over 12000 while the LRP is under 10000. For example, a brushless motor with a kV rating of 3000 powered by a 12V power source would be capable of 36,000 RPMs (multiply 3000x12). I've been out of racing 15 years and am so confused at all the different changes. Below I will explain the different Brushless RC Motor Specs such as Kv, Motor turns, Watts, Amps, etc. Below is a list of motor turn … Put simply, a 4.5T motor is faster than a 21.5T motor. So the basic idea of both type of motors are the same. It is measured by the number of revolutions per minute (rpm) that a motor turns when 1V (one volt) is applied with no load attached to that motor. Before the brushless motors, the custom in RC modeling was to label motors by the number of turns, because everybody used the same type of motor: 540 brushed. The winding then pushes and repels against a permanent magnet to cause the shaft to turn. However, I've Each wrap of wire around the stator is called a “turn.” Thinner wire allows more turns and thus more wire to be used in the stator’s construction. If Kv is like horsepower, then Turns is the physical attribute of a motor. The only difference between brushed and brushless are that a brushless motor doesn’t have brushes and a commutator. You cant really compare turn ratings with brushed and brushless motors. The Kv rating is meaningless to the racer. RGT FJ Desert Fox 1/10 Scale 4WD Off-Road Crawler RTR, RedCat Fully Functional 1/10 Hopping Lowrider RTR, Boom Racing ProBuild 1.9 SV5 Neo Chrome Beadlock Wheels, TRC 1/10 Rubicon Hard Body w/ Full Tube Doors & Open-Top, CCHand Accessories For WPL 1/10 Suzuki D-12, Boom Racing Spring Steel High-Grade Tool Set. To many varialbles. That would be a motor with high kv value. Today we are going to explain some basic information about Turns and Kv rating. Brushless DC motor control techniques How do I tell the difference between the two?? KV is the main parameter of motor, it is measure the speed of motor. ATees.com uses cookies and similar technologies. This is a theoretical value and brushless motors must not be run without any load. The “kV” factor in brushless motors. We break the numbers out as follows: [50] [55] - [3000] [50] The first two numbers represent the diameter of the motor's housing in millimeters; in this example 50mm [55] The second two numbers represent the length of the motor … Number of Turns vs Performance. The formula to calculate Kv for brushless motors is: This is just speed divided by voltage but the 1.414 term is to convert RMS voltage to peak voltage. When the shaft turns the “pushing energy” transfers from winding to winding in a circular motion causing the motor shaft to rotate. BLDC Motor Stator. I realized with my research with these 3 different brushless setups I wasnt alone in the common question of What does this motor in KV translate to a motors Turn???? By using ATees.com, you are agreeing to our revised Privacy Policy and Terms of Service, including our Cookie Policy. Therefore, the kV of a brushless motor will indicate the number of rpm at which the car’s motor is capable of turning for each Volt applied to it. The only difference between brushed and brushless are that a brushless motor doesn’t have brushes and a commutator. It is measured by the number of revolutions per minute (rpm) that a motor turns when 1V (one volt) is applied with no load attached to that motor. So when you see 3.5 turn, this means that 3 1/2e windings per coil are used. Therefore, the kV of a brushless motor will indicate the number of rpm at which the car’s motor is capable of turning for each Volt applied to it.
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