✓ Reliable Predictions since 2004
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Choose your Calculator

propCalc for Airplane	setupFinder for Airplane
xcopterCalc for Multirotor	heliCalc for Helicopter
fanCalc for EDF Jets	torqueCalc for industry

available in 17 languages: 中文, čeština, deutsch, english, español, français, hrvatski, italiano, 日本語, 한국어, Nederlands, فارسی, polski, português, русский, românesc, svenska, türk

 membership

The restricted Demoversion with reduced functionality and 20% random database is for free. Sign-up now and become an eCalc Member today with instant access to the full funcionality and over 9400 predefined components.

We apprecite your scan's of any article about eCalc you read in your prefered RC Magazine - info[at]ecalc.ch

toolbox

very first independent EV Range Estimator:
for all electric cars

These tools may further support you by calculating RC-related tasks:

• Explanatory videos on eCalc YouTube Channel and published articles (see below).
• cgCalc: Calculate, evaluate or verify the Center of Gravity (CG), Neutral Point (NP) and Aerodynamic Center (AC) of your airplan before maiden. The only CG Calculator for upto 5 wing panels.
• control surface moment: calculate the required torque of your servo.
• decalage: static evaluation with some easy measurments on the table. dynamic decalage correction based on out of neutral trim.
• TRUE C Rating: calculate the true perfomance of your battery.
• wingDesigner⁴: evaluate and vizualize the center of gravity (CG) of complex wing
• wingDesigner: evaluate and vizualize the center of gravity (CG) of your wing
• xcopterDesigner: optimise and visualises your copter design.

published articles

(sorry german only)

• Elektrische Modell optimal auslegen I  
• Elektrische Modell optimal auslegen II  
• Auslegung I - Modellart t 
• Auslegung II - Rahmenbedingungen  
• Auslegung III - Berechnunsbeispiel  
• Auslegung IV - Berechnung im Detail 
• Auslegung V - Schwerpunkt ermitteln  
• Auslegung VI - Schwerpunkt mit cgCalc  
• Auslegung VII - Saga von der EWD  
• Auslegung VIII - Edge V3 (Teil 1, Evaluation) 
  
• Auslegung IX - Edge V3 (Teil 2, Auslegung & Bau) 
  
• Auslegung X - Edge V3 (Teil 3, Verifikation und Erstflug) 
• Auslegung XI - setupFinder - Einfach Antriebe finden 
  (noch nicht erschienen)
• Technik I - Brushless Motor  
• Technik II - Motorenkonstanten  
• Technik III - Regler bei Vollast  
• Technik IV - Regler bei Teillast  
• Technik V - Timing  
• Technik VI - Tödliche Kabelverlängerung  
• Technik VII - Batterieübersicht  
• Technik VIII - Lithium-Akku  
• Technik IX - Servo und BEC dimensionieren  
• Technik X - Getriebe- oder Direkt-Antrieb?  
• Antriebe - F5J  
• Antriebe - Hotliner  
• Antriebe - Elektro-Jet-Power  

about eCalc - drive calculator

Since 2004 eCalc provides web-based quality services to simulate, calculate, evaluate and design electric brushless motor drives for RC pilots of airplane, multi rotor, UAV, helicopter and EDF jets.
eCalc's motor database is the most comprehensive on the web.

Follow us on Twitter @eCalc_e, Facebook Group eCalc or the eCalc YouTube Channel to get the latest news.

Is my Motor available?
Wondering your motor is in the Database? ...check the full motor list. If you motor is missung just provide us with the specifications...

You are a motor manufacurer?
Please send us your specifications or fill in this form and we will update our database with your motors. Thereafter all visitors may use your motors for calculation. This will increase your visibility on the market considerable.

Did you find a bug or data error?
please report to info[at]ecalc.ch with detailed discription and screen shot - Thank you.

Missing your Language?
We are looking for experienced RC Pilots willing to translate eCalc from english or german to any other language. Please contact us info[at]ecalc.ch.

terms & conditions

The private use is granted without restrictions. The copyright applies.

The commercial use without any contract with Solution for All Markus Mueller is expressly prohibited. For the contracted  commercial users the Terms & Conditions applies. 

Interested in a commercial use? Please contact us by email: info[at]ecalc.ch.

copyright & author's right

All source codes, data, texts, pictures and graphs and their arrangements are subject to copyright and are the intellectual property of Solution for All Markus Mueller. They may neither be copied for forwarding nor used in an amended form or on other websites or servers or any kind of electronic device.