- the most reliable RC Calculator on the Web

Next Update includes

(next update planned for TBD)

torqueCalc: considering temperature influence to the magnets (KV). Graph for Tmperature Propagation added

propCalc: Thermal Propagation Graph added

fanCalc: Thermal Propagation and Graph added

Release Notes

Date   Version   Description
09.02.24    5.24  

evCalc: Topography API provider changed

18.01.24   7.30  
  • general: Motor Search bug for similar motor typ names corrected
  • propCalc: Motor thermal curve at max throttle to get an idea how fast the temperature propagetes in the motor.
  • perfCalc: Take-off Distance calculation
  • setupCalc: Flight Mission for Long Distance added
  • torqueCalc: Bug for misdrawing of gauges after several calculations corrected
25.06.23   --  

more than 13 million visits since february 2010!
We are proud to welcome the 13th-millionst visit since counting back in february 2010. Our community is constantly crowing....
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16.06.23   7.29  
  • general: note regarding discontinued motors added
  • propCalc:  indication of esimated maximum achievable climb angle.
09.05.23   7.28  

propCalc: indication of Climb Capacitiy for better comparison between different glider setups. Climb Capacity is the theoretical total height you may climb with one battery at full thrust considering the specified percentage of the battery discharge.

09.05.23   7.28  

propCalc: indication of Climb Capacitiy for better comparison between different glider setups. Climb Capacity is the theoretical total height you may climb with one battery at full thrust considering the specified percentage of the battery discharge.

25.03.23   7.27  

eCalc: improved warnings for ESC limits (over peak, impuls operation only or risk of overheat in partial load operation).

25.03.23   7.27  

eCalc: improved warnings for ESC limits (over peak, impuls operation only or risk of overheat in partial load operation).

09.03.23   3.11.0  

 cgCalc: indication of Sweep @ MAC

    1.13  

perfCalc: wing area normalized Cd added. This value might be used in propCalc as specific drag coefficient.

08.02.23   3.10.2  

cgCalc: Bugfix regarding wrong Taill Efficiency selection for bi-plane from deep link

28.11.22   -   300 millions drive simulations and counting...
17.11.22   -  

eCalc (all simulation tools): pushing parametrized URL to browser history at every calculation (in function validateNumbers())

19.10.22   3.10.1  

cgCalc: Bugfix to eliminate error message for Delta/Flying Wing with (unused) stabilizer values all set to zero

01.06.22   3.10.0  

cgCalc: considering Simon's estimate for change of downwash angle (iso fix 0.4), custom Tail Efficitivness, Canard optimized, drawing scale optimized.

17.06.22   7.26  
  • Gauge: Misdrawing after lot of calculations corrected (gauge.update(specificOptions) missing)
  • propCalc, xcopterCalc: Propeller Constant Pconst dynamic calculation for generic props.
  • propCalc: Hand launch message fixed for multi-engine.
  • setupFinder: Motor Weight Maximum can be entered relative to AUW - as used to be - or absulut in g or oz
  • general: central release definition
  • one session per user allowed only - user will be automatically logged out after less than 30s when a new session opend with same login to prevent misuse by multi concurrent users.
    1.12  

perfCalc: service update

    3.00  

cgCalc: considering normal fuselage designs, membership required

    1.01  

wbCalc: service update

    5.22  

evCalc: service update

04.06.22   7.25.1xx  

heliCalc: bug in constant rpm hover current corrected.

25.05.22   --  

more than 12 million visits since february 2010!
We are proud to welcome the 12th-millionst visit since counting back in february 2010. Our community is constantly crowing....
Thanks to all for supporting eCalc.

17.05.22   --  

SiteLok 6.4 installed

12.02.22 5.21.1xx evCalc: OpenChargeMap Charge Station retrival updated to API 3.0 for USA
04.11.21   2.00   cgCalc 2.0: all new center of gravitiy calculation for Bi-Plane
18.10.21   1.40  

chargeIndex 1.40: - Drive Drain Efficiency added - "How many km/mi you can drive on 1kWh of Battery Capacitiy"

05.09.21   1.01   perfCalc: Version 1.11 - Gauge Scale of Vertical Speed corrected
31.8.21   1.19  
  • cgCalc: Usage of T-Tail clarified
11.07.21   1.01   perfCalc: Version 1.1 - multimotor capable now
10.07.21   --   cgCalc: 1 Mio calculations
05.08.21   --  

SiteLok 6.2 installed

11.07.21   1.01   perfCalc: Version 1.01 - english unit translation corrected, Bug fix for AC Class evaluation
12.05.21   1.00  

w&bCalc 1.0: all new Weight and Balance Calculation to evaluate actual CG and CG correction

12.04.21   7.25  
  • propCalc, fanCalc: ESC timing can be changed, Drag based on Wingspan as reference area
  • perfCalc: Version 1.0 - indroduction of the inflight performance analysis tool
03.04.21 1.18
  • cgCalc: Bug fix regarding negative sweep
25.03.21   1.17  
  • cgCalc: Error message if input field empty
01.03.21   -   250 millions drive calculations
28.02.21   7.21  

eCalc: Blocking of Safari Browser at login solved

14.01.21   --  

SiteLok 6.0 installed

10.12.20   1.16  
  • cgCalc: autosave of the form fields added
26.11.20   --  

more than 10 million visits since february 2010!
We are proud to welcome the 10th-millionst visit since counting back in february 2010. Our community is constantly crowing....
Thanks to all for supporting eCalc.

23.11.20   1.30  
  • chargeIndex: new detail view and core efficiency
18.11.18   1.15  
  • cgCalc: Analytics event for data evaluation inserted

25.09.20   -   150 millions drive calculations
27.08.20   5.21  
  • evCalc: address entry modified.
24.08.20   1.00  
  • chargeIndex: first release
29.06.20   2.04  
  • chargeCalc: recharged kwh/km inserted to graph
24.06.20   5.20  
  • evCalc: actual wind and temperature information will be considered along your route, elevation evaluation problem for long leg corrected
23.05.20   5.11  
  • evCalc: accounting for high tailwind improved, image source for EV overwiev inserted 
13.05.20   7.20  
  • new Quick Gauge Plug-in - works in China too
  • xcopterCalc: Range estimate in the result column
  • heliCalc: Motot@Maximum calculation for  constant headspeed (iso max. headspeed)
13.05.20   5.10  
  • new Quick Gauge Plug-in - works in China too
  • evCalc: Using routing machine of MapBox, GrasHoppers and TomTom, charge time updated in the graph considering lower chargerrates in low/high SoC range
13.05.20   2.03  
  • chargeCalc: Service Update
06.05.20   --   
  • all products updated to new Google API - Google resource is quite instable on Chrome and Safari
25.02.20   2.02   
  • chargeCalc 2.02: improved charging model
23.02.20   2.01   
  • chargeCalc 2.01: updated with "efficient charge range" indication.
21.01.20   ---   more than 9 million visits since february 2010!
We are proud to welcome the 9th-millionst visit since counting back in february 2010. Our community is constantly crowing....
Thanks to all for supporting eCalc.
16.01.20   5.01  
  • evCalc: Adress search simplyfied & improved for "Location or next Waypoint".
14.12.19   5.00  
  • evCalc: Calculation on map based speed sheddule along the route plotting a graph with consumption, state-of-charge and detailed recharge information. Simulation of a car towing a trailer. Routing marker improved for better recognition of start (triangle) and finish (flag) marker.
14.12.19   7.17  
  • eCalc: Service Update
06.11.19   --  
  • eCalc: 100 mio electric drives calculatet so far - thanks for this incredibale meilestone!
30.10.19   --  
  • evCalc: 6 mio EV trip calculations
23.09.19   2.01   
  • chargeCalc 2.00: Taking battery degradation (SoH) into account, Range vs. Time Graph
20.09.19   4.56
1.11
 
  • evCalc: integration of chargeCalc - Link to chargeCalc presets the settings
  •  chargeCalc: integration of evCalc - Link to evCalc presets the settings
14.09.19   1.00   
  • chargeCalc 1.1: Graph for Range vs Time at Charging added
10.09.19   1.00   
  • chargeCalc 1.0: Final Release - new service for calculating specific charge sessions
21.08.19   4.55  
  • evCalc: Bug fix for sorting the benchtest according Charge Time and Travel Time, Database Structure change
21.08.19   ---  
  • Update Membership System V5.7
06.08.19   ---  
  • evCalc: 5 Mio Trip Calculations
  • eCalc: we inserted the 10'000th motor to the most comprehensive database on the web
10.07.19   4.54  
  • evCalc: Advanced Settings: select benchtesting for current available cars only or for all cars in the database, correct handling of recharging with high SoC at Desitnation, bug-fix for Address-Serach on Android showing next insted of go
09.06.19   4.53  
  • evCalc: Charger Data Quality improved (null vlaue replaced by plan text and estimates)
24.05.19   4.52  
  • evCalc: full map functionality is back: Topography and route insertion of charger
20.05.19   4.50  
  • evCalc: change to Open Street Map
29.03.19   4.02  
  • evCalc: automatic map centering if car symbole leaves the boundary of the visible map.
    (static = no map movement / center = automatic centering)
25.03.19   4.00  
  • evCalc: completly redesigned and new features...
    Navigate through a specific Charg Staion, Charge Point Information updated, at origine and destination also chargepoints (also below defined charge power limit) will be shown within defined radius.
25.03.19   7.16  
  • eCalc Service Update (Cursor Wait during Calculation, printing optimized)
23.03.19   ---   more than 8 million visits since february 2010!
We are proud to welcome the 8th-millionst visit since counting back in february 2010. Our community is constantly crowing....
Thanks to all for supporting eCalc.
16.03.19   --  
  • evCalc: evCalc allready calculated 1 Million Trips for electric Vehicles for range simulation
23.02.19   3.11  
  • evCalc: Charge Point details with numbers of stalls and plugs, color coded charge points
10.02.19   3.10  
  • evCalc: Electric Car Overview for selection
31.12.18   3.02  
  • evCalc: Indication of region where a recharging is expected according charging strategy, Result Table with reduced Column on small devices for better overview.
24.12.18   3.00  
  • evCalc: Indication of Charging Points along your Route
03.12.18   7.15  
  • eCalc Service Update V7.15
  • propCalc: considering zero thrust speed is byond pitch speed due prop airfoil
  • setupFinder: share function added
  • xcopterCalc: max. speed calculation and range model improved, accessory allows negative amp draw to simulate solar panels for prolonge flight
03.12.18   2.20  
  • evCalc: Indication of the Econ Speed - best energy-speed-ratio, TCO and CO2 Analysis Sheet
06.11.18   2.11  
  • evCalc: User Statement inserted
04.11.18   ---  
  • Update Membership System V5.6
31.10.18   2.10  
  • evCalc: Route Designer integrated, Service Update (additional BMS Value «on - very hight» for cold soaked batteries)
23.06.18   2.03  
  • evCalc: Service Update (Titel inclueds car name)
14.08.18   1.12  
  • cgCalc Version 1.12 released (returning Error for Delta and Canard corrected) - to cgCalc

23.06.18   2.02  
  • evCalc: Bug fix for Roll-Resistance scale
20.06.18   7.111  
  • Bug fix for Chrome Ads blocker does not allow dialog box anymore.
04.06.18   2.00  
  • evCalc: now with cross-brand benchmarking
03.06.18   7.11b  
  • xcopterCalc: no more calculation resriction for Race Copter with a propeller diameter of 6.5" or less. However, accuracy byond a Diameter-Pitch-Ratio of more than 0.667 decreases.
27.05.18   ---   more than 7 million visits since february 2010!
We are proud to welcome the 7th-millionst visit since counting back in february 2010. Our community is constantly crowing....
Thanks to all for supporting eCalc.
06.06.17   ---   more than 6 million visits since february 2010!
We are proud to welcome the 6th-millionst visit since counting back in february 2010. Our community is constantly crowing....
Thanks to all for supporting eCalc.
30.06.16   ---   more than 5 million visits since february 2010!
We are proud to welcome the 5th-millionst visit since counting back in february 2010. Our community is constantly crowing....
Thanks to all for supporting eCalc.
16.08.15   --.--   more than 4 million visits since february 2010!
We are proud to welcome the four-millionst visit since counting back in february 2010. Our community is constantly crowing....
Thanks to all for supporting eCalc.
17.10.14   --.--   more than 3 million visits since february 2010!
We are proud to welcome the three-millionst visit since counting back in february 2010. Our community is constantly crowing....
Thanks to all for supporting eCalc.
   
   
  Mile Stones of eCalc development:
10.2023   -   350 millions drive calculations - 13 mio visitors
11.2022   -   300 millions drive calculations
03.2022   -   250 millions drive calculations
05.2021   -   Introduction of w&bCalc - Weight and Balance Calculation to evaluate actual CG and CG correction
05.2021   -   200 millions drive calculations
04.2021   -   Introduction of perfCalc - Simulation of inflight perormance for fixed wing aircraft
09.2020   -   150 millions drive calculations
09.2019 - Introduction of chargeCalc - Charge Stop Simulation for (real) electric Cars
08.2019 - Motor Database contains 10'000+ motors
11.2018 - Motor Database contains 9000+ motors
04.2018 - Introduction of evCalc - Range Simulation for (real) electric Cars
10.2017 7.1 Introduction of setupFinder - easy find RC Airplane Drives
Introduction of torqueCalc
- for industrial applications
10.2016 - Introduction of cgCalc - to verify Center of Gravity
10.2016 - Introduction of wingDesigner and xcopterDesigner
04.2011 4.2 Introduction of xcopterCalc - for RC muticopter
03.2010 4.0 Introduction of heliCalc - for RC helicopter
09.2004 1.0 Introduction of propCalc and fanCalc - for RC electric ducted fan jets
06.2004 0.1 First Prototype propCalc - for RC fixed wing propeller airpane