eCalc - the most reliable RC Calculators on the Web for electric Motors

- the most reliable RC Calculator on the Web

Language / Calculator	propCalc	xcopterCalc	fanCalc	heliCalc
中文	螺旋桨计算器	多旋翼计算器	涵道风扇计算器	直升机计算器
čeština (in transalation)
Deutsch	Propeller	Multikopter	Impeller	Helikopter
English	Propeller	Multicopter	Ducted Fan	Helicopter
Español	Helices	Multicopteros	Turbinas eléctrico	Helicopteros
Français	Hélice	Multicopter	Impeller	Helicopter
Polski	Śmigła	Wielowirnikowce	EDF	Helikoptery
Português (in translation)

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About eCalc

Calculations for electric driven RC (remote controled) Models:
eCalc are (Software-) Services to calculate, evaluate and design electric motor driven systems of any type.

This is a free Service for non-commercial users. Nevertheless we appreciate your donation.
For commercial users the Terms & Conditions apply.
Copyright and intellectual property rights apply.

29. April 13: Release of Version 6.02

What's new with V6.02:
- new error message if calculation aboard by server side routine.
- mixed flight time calculation for heli & xcopter corrected
- new gaphic basic routines (flot 0.8)
- power-weigh-ratio now in W/lb (instead of W/oz)

Did you found a bug or data error?
please report to ecalc[at]s4a.ch with detailed discription - 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 ecalc[at]s4a.ch.
(eCalc is already translated to English, German, Chinese, French)

Über eCalc

Berechnung elektischer Modellbau-Antriebe:
eCalc sind (Software-) Dienstleistungen zur Berechnung, Auslegung oder Konfiguration von elektrischen Antrieben aller Art.
- driveConfigurator mit ausgewählten Combos.

Die private Nutzung ist gratis - über eine kleine Spende freuen wir uns besonders.
Für eine kommerzielle Nutzung gelten die AGB's.
eCalc unterliegt dem Urheberrecht und ist geistiges Eigentum von Solution forAll.

29. April 2013: Publikation der Version 6.02

Was ist neu an V6.02:
- Neue Fehlermeldung, falls die serverseitige Berechnung abbricht
- Korrektur der Ø Flugzeit Berechnung für Helis und xCopter
- neue Grafiksubrutinen (flot 0.8)

Haben Sie einen Fehler im Programm oder der Datenbasis entteckt?
Bitte raportieren Sie diesen mit genauen Angaben an ecalc[at]s4a.ch - Besten Dank.

Fehlt Ihre Sprache?
Wir suchen versierte Modellbauer, welche eCalc vom Deutschen oder Englischen in andere Sprachen übersetzten. Bitte nehmen Sie mit uns Kontakt auf ecalc[at]s4a.ch.
(aktuell verfügbare Sprachen: Deutsch, Englisch, Chinesisch, Französisch)

Future Development:

Calculator for RC Cars & Trucks
Calculator for boats

Release Notes:

Date	Version	Description
29.04.13	6.02	propCalc: new additional Error Message if aborded by the server-calculation-routine, Power-Weight-Ratio in W/lb, Graphic Plot corrected, flot 0.8 fanCalc: new additional Error Message if aborded by the server-calculation-routine, Power-Weight-Ratio in W/lb, Graphic Plot corrected, flot 0.8 heliCalc: new additional Error Message if aborded by the server-calculation-routine, miscalculation for Mixed Flight Time corrected, Power-Weight-Ratio in W/lb, Graphic Plot corrected, flot 0.8 xcopterCalc: new additional Error Message if aborded by the server-calculation-routine, miscalculation for Mixed Flight Time corrected, Graphic Plot corrected, flot 0.8
21.03.13	6.01	propCalc: Motor Graphic available again fanCalc: Motor Graphic available again heliCalc: Motor Graphic available again xcopterCalc: Motor Graphic available again
15.03.13	6.00	This major Redesign does now allow easy translation into other languages and better adaptation to the corporate design of commercial users. Ploting the Motor Graph is still missing and will be available with a next release. propCalc: Redesign fanCalc: Redesign heliCalc: Redesign xcopterCalc: Redesign
18.02.13	5.30	propCalc: Service Update fanCalc: Service Update heliCalc: Service Update xcopterCalc: Service Update
29.01.13	5.19	propCalc: improved accuracy fanCalc: improved accuracy heliCalc: improved accuracy xcopterCalc: improved accuracy
03.01.13	5.18	propCalc: RPM calculation is now even more accurate fanCalc: no Change heliCalc: no Change xcopterCalc: RPM calculation is now even more accurate
07.10.12	-.--	more than 1 millon visitor since february 2010! We are proud to welcome the one-millionst visitor since counting back in february 2010. Our community is constantly crowing.... Thanks to all to support eCalc.
06.09.12	5.17	propCalc: no change fanCalc: ChangSun 90 EDF available heliCalc: no change xcopterCalc: additional Payload calculation corrected
08.05.12	5.16	propCalc: Option of the weight calculation: either weight definition without Drive taking into account the weight of the selected components or weight definition incl. Drive does not add any weight to your entry. Calculation of Power-Weight-Ratio and Thrust-Weight-Ratio. fanCalc: JetFan 90, ChangeSun 70 EDF available heliCalc: no change xcopterCalc: the minimum of rotors is now reduced to 2 in stead of 3
07.11.11	5.15	propCalc: Ramoser 5 Blades Propeller available. fanCalc: Dynamax EDF available. heliCalc: Option of the weight calculation: either weight definition without Drive taking into account the weight of the selected components or weight definition incl. Drive does not add any weight to your entry. xcopterCalc: minimum rotor number of 2 (instead of 3) now possible.
23.08.11	5.14	xcopterCalc Final Version is now available.
22.07.11	5.14	xcopterCalc Beta-4 Version: - All Up Weight calculated by xcopterCalc by using Basic Weight and selecting «without Drive»
21.07.11	5.14	xcopterCalc Beta-3 Version: - linear Throttle calculation corrected - add Payload does now calculate the additional weight can carried to hover with 80% linear Throttle. This gives a small margin for maneuverability. We recommend to aim for around 50% Throttle for a agile maneuverability
16.07.11	5.14	xcopterCalc now available in Beta-1 Version X5.14 heliCalc: new gear entriy - Main Gear : Motor Pinion Service Update: minor changes, Total Power (In) calculation corrected
03.04.11	5.13	heliCalc does calculate the rotor deflection (Pitch) to Hover (approximation). Service Update: several small improvements, new plotting software version flot 0.7.
29.12.10	5.12	Service Update: missing field enable after manufacturer change corrected, the number of Motors in the Database is now shown in the footer
01.12.10	5.11	Disable Entrieflields when Component from Database loaded Service Update: Load Battery DDL format changed for better preselection
26.10.10	5.10	propCalc does consider twisted yokes. With a Warning Message the corresponding Feld Text will be highlighted in red color. Decimal Entries done with [,] will be automatic converted into [.] to prevent calculation error. Service Update: Customizing Fan Drop Down, Preselect Cooling, error for exessive Blade Tip Speed (> MACH .85)
23.09.10	5.00	New model to extrapolate no-load current at higher voltage resulting in a even more accurate Efficiency. Introduction of the Battery Charge State (full, normal, low) for a better comparability with own measurements. Component Limits are now shown in the graphics and graphics problem with IE9 solved. First HeliCalc Release. Preselecting of the Blades in URL.
...		...
1.06.2004	0.1	First Prototype

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: ecalc[at]s4a.ch.

Allgemeine Geschäftsbedingungen

Die private Nutzung ist ohne Einschränkungen erlaubt. Es gelten die Urheberrechts- und Copyright-Bestimmungen.

Eine kommerzielle Nutzung ohne schriftlicher Zustimmung von Solution for All Markus Müller ist ausdrücklich untersagt. Für eine vertraglich festgelegte kommerzielle Nutzung gelten die AGBs.

Falls Sie an einer kommerziellen Nutzung interessiert sind, unterbreitene wir Ihnen gerne ein Angebot. Bitte nemen Sie mit uns Kontakt auf unter ecalc[at]s4a.ch.

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 Müller. 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.

Urheberrecht & Copyright

Sämtliche Source-Code, Daten, Texte, Bilder und Graphiken sowie deren Arrangements unterliegen dem Urheberrecht und sind geistiges Eigentum der Solution for All Markus Müller. Sie dürfen weder zur Weitergabe kopiert, noch in abgeänderter Form oder auf anderen Web-Sites bzw. – Servern oder Computern jeglicher Art verwendet werden.

Hints and Tips

Calling the eCalc with a preselected Setup:
(for commercial users only)

You can call the eCalc by passing parameters to the Calculator. This will select the desired Setup. This method is best to start a calculation direct from your web shop.

optional Parameters:
?CustomerName: The Customer Name has always to be fist.
Elevation: Field Elevation in Meters
AirTemp: Air Temperature in °C
Batteries: (part of) Batteries Name as stated in the Batteries Drop Down List
s: number of Cells in serie
p: number of Cells in parallel
ESC: (part of) ESC Name as stated in the Contoler Drop Down List
Motor: Name of Motor Manufacturer as stated in the Motor Drop Down List
Type: (part of) Motor Type Name as stated in the Motor Type Drop Down List
Gear: Gear Ratio e.g. 6.7
Propeller: (part of) Propeller Name as stated in the Propeller Drop Down List
       Diameter: Propeller Diameter in inces
       Pitch : Propeller Pitch in inces
       Blades: Number of Blades
EDF: (part of) Impeller Name as stated in the Impeller Drop Down List
      FSA: % of Fan Sweap Area
Rotor: (part of) Rotor Typ as stated in the Rotor Drop Down List
      Pitch: Rotor Pitch in °
Cooling: Adjust cooling for Temperature Predeiction by using excellent, good, medium poor, very_poor

Example:

Hinweise und Tipps

eCalc mit einem definierten Antrieb aufrufen:
(nur für kommerzielle Nutzer)

Durch eine Parameterübergabe im Link, können die Calculatoren mit einer festgelegten Antriebskonfiguration gestartet werden. Sie eignet sich hervorragend um Berechnungen für einen empfohlenen Antrieb direkt aus Ihrem Web Shop zu starten.

optional Parameters:
?CustomerName: Name des Nutzers immer als erster Parameter
Elevation: Flugfeldhöhe in Meter
AirTemp: Lufttemperatur in °C
Batteries: (Teil-) Name des Akkus aus der Drop Down Liste
s: number of Cells in serie
p: number of Cells in parallel
ESC: (Teil-) Name des Reglers aus der Drop Down Liste
Motor: Name des Herstellers aus der Drop Down Liste
Type: (Teil-) Name des Motortyps aus der Drop Down Liste
Gear: Untersetzungsverhältnis z.B. 6.7
Propeller: (Teil-) Name desPropellers aus der Drop Down Liste
       Diameter: Propeller Durchmesser in Zoll
       Pitch : Propeller Pitch in Zoll
       Blades: Anzahl Propellerblätter
EDF: (Teil-) Name des Impellers aus der Drop Down Liste
      FSA: % der Durchlassfläche
Rotor: (Teil-) Name des Rotors aus der Drop Down Liste
      Pitch: Rotor Pitch in °
Cooling: Motorkühlung zur Temperaturvorhersage: excellent, good, medium poor, very_poor

Beispiel:

3300mAh 8s 1p, 90A ESC, Scorpion S4025-16 with a APC Electric 18x8
http://www.ecalc.ch/motorcalc.htm?ecalc&Motor=Scorpion&Type=4025-16&ESC=90A&Batteries=3300&p=2&S=8&propeller=APC_Electric&Diameter=18&Pitch=8

(if there are spaces in the Drop Down List Name, just replace it by a _ e.g. «APC Electric» becomes «APC_Electric» for the parameter value)

(sind im Name der Drop Down Liste Leerschläge vorhanden, ersetzen Sie diese durch _, z.B. aus «APC Electric» wird «APC_Electric» für den Parameteraufruf)