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So if you're looking for an exhilarating, rewarding, addictive and very fulfilling hobby, please enjoy my pages - and I wish you many future happy landings! Green indicates a good choice if you are looking to fly fast.

But there are generally recognised prop size ranges for each engine size and these are the sizes to choose if you're unsure about propeller selection. Everyone knows that propellers on RC planes, drones, and helis are fast-spinning blades. copyright applies. The simple methodif you have a pre-built modelis to check with the maker.

By scrolling through propellers in the list, you can instantly see the effects on the results. Drive Calculator 3.4 fr Mac OS X (Zip-Archiv, 7 MByte) Always take great care around a spinning prop and treat it with the utmost respect. The prop is operating in a window below Mach 0.62, which will not over stress the motor. your specifications or fill in - RCG, www.rcwebclub.com/Portals/1/How_to_Use_PropEngine_09172013.pdf, play.google.com/store/apps/details?id=appinventor.ai_graham_dyer.RC_Ecalc_Pro, Excel programs for estimating model in-flight performance- RCG, e-flight calculators (compilation) - post #252, Motor Data - test bench data for several hundred brushless motors - RCG, www.apcprop.com/technical-information/performance-data, APC-E Propeller Static Thrust & Power Nomograms - RCG, Measuring Brushless Motor Resistance (Two Digital Meter Method) - WFF, Several diy test rig designs, thrust and dynamoter, Feature Article - Motor constants, how to find them and use them - RCG, www.astroflight.com/explanation-of-motor-terminology.html, krex.k-state.edu/dspace/bitstream/handle/2097/1507/JamesMevey2009.pdf, http://www.gobrushless.com/testing/tcalculator.php, http://www.adamone.rchomepage.com/calc_motor.htm, https://www.rcgroups.com/forums/showthread.php?t=736782, https://www.rcgroups.com/forums/show.php?t=1388429, https://www.rcgroups.com/forums/show0#post12693433, https://www.rcgroups.com/forums/show819392&page=25, http://web.mit.edu/drela/Public/web/qprop/, https://www.rcgroups.com/forums/show.php?t=1077012, https://www.rcgroups.com/forums/show44#post8108089, http://www.s4a.ch/eflight/motorcalc_e.htm, e-flight calculators (compilation), internal link, The following errors occurred with your submission, The simple effect of pitch and number of blades, and the. This Introducing the Dolphin, ESP32 Radar: Finding your friends in the sky. Collecting Motor Data for Input Into Drive Calculator, www.rcgroups.com/forums/showt0#post12693433, www.rcgroups.com/forums/showt819392&page=25, www.rcgroups.com/forums/showthread.php?606703-e-flight-calculators-(compilation)#post39016950, www.rcgroups.com/forums/showthread.php?t=2101447, plane.ardupilot.com/wiki/ecalc-motor-and-prop-efficiency-guide, APC-E propeller thrust and absorbed power estimating program - RCG, www.rcgroups.com/forums/showthread.php?t=1077012, aerotrash.over-blog.com/pages/Tetacalc_Electric_propulsion_calculator-6330077.html, www.rcgroups.com/forums/showthread.php?t=606703&page=8&pp=10#post21370664, Sid Kauffman - ElectriCalc Designer & Friend, MUMTATS IS HERE! The 'twist' in the propeller is there to create the essential Angle of Attack of each blade, just like a wing has an AoA. Servo Driver eliminating the need for a receiver during motor measurement, FASST-Modul (2,4GHz) an herkmmlichen Sendern, Multiplex radio with Assan or Jeti 2.4ghz module, Assan- oder Jeti-Modul (2,4GHz) an Multiplex-Sendern, Multiplex Profi MC 3030, MC 4000, Royal Evo w/ FASST TM-8, Drive Calculator 3.4 for Linux (experimental), Drive Calculator database (including all updates until 2020-09-05), Drive Calculator 3.4 fr Linux (experimentell), Drive Calculator Datenbank (inklusive Updates bis 05.09.2020). Drain Efficiency added - "How many km/mi you can drive on 1kWh of updated: T-Motor F-Series, 11/20/21 - Motor Database UNDER-propping EP motors is less of an issue. The Drive Calculator database contains tablesfor batteries, ESCs, gear boxes, motors, propellers, and stators. I enjoy running when I'm not thinking about tech.

As with IC, electric motor manufacturers give a specific propeller size range for their motors but it's more critical that the range is adhered to. Interested in a commercial away from onlookers, ALWAYS keep hands well clear of spinning props, ALWAYS keep faced & body clear of the props arc after starting the engine/motor, ALWAYS make fine adjustments from behind the prop (except pusher props), ALWAYS keep loose clothing well clear from spinning propellers, NEVER throw something into the path of spinning props to kill the engine, ALWAYS discard damaged props. Drive Calculator 3.4 for Windows (Zipped Archive, 5 MByte) Instantly, the full throttle analysis will appear. There are two means to ensure the correct RC prop size for an EP motor. Simply put, props are nothing more than vertically mounted rotating wings. You have an easy way and a complex approach. The drag of the air on the propeller will cause friction, and a loss in rotational speed. new center of gravitiy calculation for Bi-Plane - correction, 5/11/21 - Motor Database: The commercial use without any contract with Solution for Fundamental difference in behaviour under load between e-motor and ic-engine. Sign-up now and become an eCalc Red indicates an inefficient choice. A single blade prop must be balanced with a counterweight on the other side of the hub to the blade, otherwise the plane would shake itself to pieces as soon as the prop was turning! Drive Calculator 3.4 for Linux (experimental) (Zipped Archive, 4 MByte) Antigravity, 5/11/22 - Think of the propellers on your RC aircraft as carefully engineered rotating wings.

Ask me how I know . updated: Mamba Toka, T-Motor F & CINE, Its all about trial and error. Each table has three columns that show the engine size, starting props, and alternate props. But what if you want to experiment with different sized props than the stock suggestions? Props work by converting the power from the engine or motor into thrust.

to API 3.0 for USA, 2/7/22 - Motor Database check the Notes, 6/11/22 - Motor updated: Peggy

There are no guarantees with alternate prop sizes, so one must prepare for trial and error. Likewise, you can choose and HOLD a voltage/battery, and/or propeller, and see the results as you scroll through motors in the database. The site is brought to you by me, Pete, a middle-aged guy who just refuses to grow up. EV Database How to for adding tested motor data to Drive Calculator by Ken Myers (, Online motors and propellers graph tool + theory. ready to have your mind expanded by the possibilities and taste a bit of the future before everyone else. Going over this limit will likely melt your motor. with the specifications You are a motor manufacurer?Please send us There are two measurements to consider when it comes to propeller sizes, e.g., 84: The first number is easy and merely donates the length of the propeller. updated: Leomotion L5061, 3/9/22 - Motor Database Drive Calculator 3.4 Readme (opens in web browser) This handy guide presents you with an easy-to-read prop size calculator. A faster turning propeller (and props can easily turn in excess of 10,000 RPM) generates a lot of noise as the tips cut through the air. FPV Component selection, Beginners iNav build academy: 1. Its vital to understand the differences between testing props with gas and electric powered aircraft. Some hobbyists still prefer 3 and 4 bladed props, usually for style reasons. news. The most convenient result to check on the propeller speed calculator is the metres per second (m/s) tip speed. Mamba Toka, T-Motor F & CINE, SunnySky FixedWing, 5/31/21 - Motor Database: We would also like to use cookies to create anonymous statistics or to improve the personal shopping experience. It has a large and growing database of motors, propellers, escs, and batteries. Essentially, diameter determines the 'grunt' and pitch determines the speed of the plane. Doesnt explain what is meant by a 945 or a 1170 propeller as listed in the Leopard motor table for example.

It calculates the theoretical maximum speed of your propeller, based on the prop pitch. Knowing how a radio-controlled model takes to the air is as exciting as flying it. RC props generate thrust in the same way that wings create lift.

We support direct advertisement on eCalc to maximize your advertising return with a unique, strong and focused target audience. Different props can still enhance the performance of a regular RC model. only affordable but pays off With RCAW my aim is to introduce you to the thrills and spills of flying radio control model aircraft! updated: BYD Dolphin, Seat Born, 9/28/21 - Motor Database

OVER-propping on an IC plane is not a serious concern and does one of two things: OVER-propping an EP aircraft is a different matter. We apprecite your scan's of any article about eCalc Starting propellers are those with a mid-range pitch (see above). It does this by reading the propellers current-draw through the models ESC and its motor. Heeding such advice is the quickest and most stress-free way.

Technik X - Getriebe- oder Direkt-Antrieb? info[at]ecalc.ch with detailed discription and screen shot - Thank you. These tools may further support you by calculating RC- updated: BotherHobby 3008, LA 2005 / The following propeller size chart ( Top Flight, reproduced with permission) is easy to use; select your IC engine displacement along the bottom scale, then follow the vertical line up to the shaded area to give the prop size range for that engine. We'll assume you accept this policy as long as you are using this website, Adding Flaps, crow, flaperons, and more; in iNav 3.0, My transmitter setup. Static thrust and static propeller speed are shown in {7}. Personally, if you're an EP flyer, I would say that a Watt meter is as essential as your battery charger! Here's an exerpt of the manual: i rigged up this spreadsheet for use with my eagle tree micro logger (with temp and rpm expanders): Measuring motor power output using a calibrated dummy prop: I'm in the process of moving all my "freeware", including MotorXLT2 and TurnCalculator3, to my blog for easier maintenance.

There should be prop size recommendations from the manufacturer in each case.

A bigger diameter results in more thrust and noise.

Wrong propellers have the potential to cause major damage to other components. You have disabled the cookies in your browser. & Conditions applies. Batteries, ESCs, and motor combinations are often unique to each craft. In the worst case scenario, the wrong prop can cause serious damage to components and this is especially true for electric powered rc airplanes. The first and foremost plan of attack is to follow the manufacturer recommendations for the engine or motor that you have. One way to understand propeller pitch is to imagine the gauge of two different screw threads, coarse and fine, both being screwed into a piece of wood at the same rotational speed. There are two charts here, one for 2-stroke engines and the other for 4-stroke. Point to note! If you do not allow all cookies, not all functions of the shop may be available. But with the advent of electric power (EP), propeller selection became a whole new minefield! If you put an oversize prop on an IC engine, the engine will likely stop running.

updated: T-Motor AT7xxx, FMS. new T-Motor U13II, analysis of multi-motor airplane performance, The membership for full functionality is not So, what are starting and alternative props?. Series, new Mamba System, 2/12/22 I will compile the calculators mentioned in this thread, in this first message. There are other factors at play, but this simple account explains the basics of prop numbers. OpenChargeMap Charge Station retrival updated Drive Calculator is a free tool for brushless motor power system analysis and prop/motor selection. check out 10/24/21 - Motor Database use? Which Prop is suitable for my hacker engine? commercial users the seen in our hobby although they have been experimented with. Maybe youre building a plane from a kit that doesnt include props, or you want to upgrade the stock options? evaluation, 6/30/21 - Motor Database The makers are unlikely to give you alternates to their recommended blades. to API 3.0 for USA, BotherHobby 3008, LA 2005 / No, is the short answer. Mueller. Dualsky EG series, 2/19/22 - Motor Database propeller length from tip to tip. This is above Mach 0.92. I've found it much better at predictions and efficiency calcs, since it uses a much more advanced prop model (not just thrust coefficients). Your email address will not be published. Tenergy High Precision RC Watt Meter & Power Analyzer, 10-6, 10-7, 11-4, 11-5, 11-7, 11-7.5, 12-4, 12-5, 10-6, 10-7, 10-8, 11-7, 11-7.5, 12-4, 12-5, 12-6, 11-7.5, 11-7.75, 11-8, 12-8, 13-5, 13-6, 14-5, 14-6, First number: diameter (length) of the imaginary disc (arc), Second number: pitch, the length of the angle of the twist on an RC prop, ALWAYS install the propeller with the curved side facing forward, ALWAYS use the correct sized wrench to tighten the bolts or nuts, ALWAYS recheck the bolt or nuts tightness, especially with wooden props, ALWAYS test the new props AT LEAST 20ft.

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