Hi
Scorpion Calc is up-dated
v3.10 for Metric or Imperial (preferences are saved in .ini file)
Go to post#1 in this thread for download new release
Please destroy older versions (but first ... test the new)
Small bug corrected (2.9 V for LiFe cells in the drop down list)
zipped is renamed v3.10 b but .exe keeps the same filename
Louis

Hi Louis,

Some other users kindly directed me here with a few questions about Scorpion Calc. I've updated to 3.10.

First, for the line immediately below the propeller choice and above the "Diameter" window, is the x%/emax value the efficiency of the selected prop at full power, or its maximum efficiency at any point over the power curve? (I'd assume the former.) What is the significance of the various colors? And is the function of the "peak eff." button to select the most efficient prop in the library for that motor and the given parameters?

Second, it seems like every time I touch anything, sometimes just opening the Preferences menu, it resets to a default ESC. Is there any way to make the program stop doing that in keep the ESC values I enter until it's shut down or I change them? I saw how to keep my prop choice but I didn't see anything about the ESC in Preferences or Help.

Thanks,

Bruce

Hi Bruce

About colored percentage
It is in fact Efficiency percentage relatively to Peakeff
So 100% means = Peakeff (could be 80%)
colors : green is good .... red is "caution"
Overloading warnings are very subjective as a lot of parameters are acting
1) Running time
2) Throttle management (is equivalent to reduce the voltage via PWM)
3) Venting/cooling of the motor
4) Voltage reducing as long as battery is going down (beginning .. end of flight)

Yes Peakeff button is to go rapidly to the prop around Peakeff
I think it could be convenient to start from this point and then go to the right
(higher load) .. a little ... if you are conservative

About ESC
ESC is suggested as function of Imax motor (but manually editable)
For now there is no option "to keep ESC parameters" if you change motor
For saving in Ini file I have to open the hood
Anyway, dynamic Rm of ESC are generally not very well known.

Louis

Thanks again!

Hi
Scorpion Calc is up-dated
v3.11 for Metric or Imperial (preferences are saved in .ini file)
Go to post#1 in this thread for download new release
Please destroy older versions (but first ... test the new)
News
3 new props MAS TB0860 (3 blades), MAS 10X6 electric only and GWS 1260TB black
S4020-16 Kv is now tabled at 405 rpm/V (my recent measurement)

SC is also free download on some websites (Innov8tive, RC-Dude(not last release) , Micron RC (UK) ..)
For some days I leave the previous release
Note that SC v3.10 was viewed 87 times
Louis

Louis,
Thanks for all your hard work, it's much appreciated! Would it be possible to include a range of XOAR electric Props in the database? These wood Props are becoming quite popular.

Thanks, Mike

Originally Posted by Smiky

Louis,
Thanks for all your hard work, it's much appreciated! Would it be possible to include a range of XOAR electric Props in the database? These wood Props are becoming quite popular.

Thanks, Mike

Mike
Unfortunately I have no XOAR wood prop in my drawers.
(But I have a lot of motors and a good bench)
Louis

Louis,
I just tried Scorpion_Calc v3.11 under Linux using Wine, a free Windows emulator. It worked!
Great program! If only it had data for all the motors available from all manufacturers...

ADB2
Thanks for the test on Linux.
If you want .. we can meet near Versailles or Antony
Louis

Hello Louis,
Sure, it would be nice! I sent you an email.
Au plaisir de vous rencontrer,
ADB2

Find it difficult to get to the prop I want, and lots aren't there?

Seems like the list scrolls by "load", not size or type?

Originally Posted by jrb

Find it difficult to get to the prop I want, and lots aren't there?

Seems like the list scrolls by "load", not size or type?

Hi
The props library is certainly limited .. I do my best to try to complete
Yes the scrolling is by "load" and at a second degree by size because load and size are related
In preferences you have a filter per brand. You can select only APC as an example.
In the future I have the idea of filtering by number of blades or only folding ...
(in my todo list)
Louis

Thanks for the great reply Louis!

I'll look at the filter.

Jim

Hi
Scorpion Calc is up-dated
v3.12 for Metric or Imperial (preferences are saved in .ini file)
Go to post#1 in this thread for download new release
Please destroy older versions (but first ... test the new)
News
6 new motors HK4020 & HK4025 series with my measurements
Now 279 props (new Hy 9x3.8 from Haoye)
SC is also free for download on some websites (Innov8tive, RC-Dude , Micron RC (UK) ..)
But here on RC-G, there is the more recent version.
For some days I leave the previous release
Note that SC v3.11 was viewed(downloaded) 94 times
Louis

Originally Posted by Fourdan

Hi
Scorpion Calc is up-dated
SC is also free for download on some websites (Innov8tive, RC-Dude , Micron RC (UK) ..)

Louis

Thanks for the update Louis. I updated the version on our website to the latest.