



Formulas?
Hey,
I'm putting together a little formbased windows calculator to make easy use of common/useful formulas. So, post your common/useful formulas here and I'll put it in (i'll give you credit if you wish, of course). It'll mainly focus on eflight, but similar to ezone, it'll also contain useful stuff on other areas of model flight. Thanks 






Don't have the formula handy at the moment, but something to
calculate the CG would be nice... here's a link : http://www.palosrc.com/instructors/cg.htm And maybe the standard Power/Current/Voltage/Resistance thingie? (fill in two of the above, and calculate the other two or something similar) It's just ohms law, but hey, I'm lazy Hans 





canard cg would be nice. tired of doing the math.
http://www.palosrc.com/instructors/putte.PDF 





GregT,
I have included a CG calc. program. Dick Huang 





Fast electric boat calculator
Here is a simple Excel spread sheet that I put together to calculate stuff for fast electric boats. If you click on the answer boxes you can see the formulas. Most of the calculations are also relevant to E.flight.
http://annneil.supanet.com/calculator.xls Neil 





I am glad mkirsh1 worked that one out first. I was having trouble remembering how I arrived at 3.6.
Neil 





Alright here is a little beta version of the first module (basic electricity formulas).
If there is a mistake in a formula, or bug, you can post it here. I am serious about this program possible being unstable, I would save all my work before using it... I haven't tested it enough to make sure it wont crash so be careful I'm putting out such a simple version because I want you all to make sure everything works for me after stareing at something for a few hours you would be suprised how easy it is to miss simple mistakes. And there will be mistakes. Mistakes in formulas, actual math, input, output... you get the idea. Next I will do CG sections (both with canard and without). Again, post all questions/ comments/ suggestions/ complaints(?) here. Download from: http://24.24.30.13/efc.zip (if anyone has webspace that I could use for this, let me know running apache on my win98 box isn't a very good idea ).  README This is just a little collection of calculators to help you remember and use all the little (sometimes not so little) formulas you find yourself using while building/testing/flying your electric models. All bugs / complains / suggestions / compliments may be sent to gregt@twcny.rr.com NOTE: This software is provided "as is". That means it's free, no support is provided. also note that this is a beta version, the code should be considered 'unstable'. Save your work before running any of these programs, as I can't promise they won't crash your computer (hopefully they wont crash your airplanes). The author of this software holds no responsibility whatsoever for any damage caused by the use of this software. 





Greg
Got some more formulas for you. 


Thread Tools  
Similar Threads  
Category  Thread  Thread Starter  Forum  Replies  Last Post 
Discussion  Exceed Formula 1 vs. HobbyKing® H2O Style Formula 1  goshakv  Racing Boats  Electric  3  Jan 15, 2016 07:55 AM 
Sold  Kyosho FOXX 1/8 4x4 Nitro RC Formula Off Road Truck w/ KE25 & 3spd Chain Drive  dealdealerunltd1  Cars  Trucks and Parts (FS/W)  0  Oct 08, 2015 03:02 AM 
For Sale  Gaui X2 Formula + Giant parts lot  onceyougojack  Aircraft  Electric  Helis (FS/W)  0  Sep 28, 2015 07:29 AM 
Sold  Magic Formula 60 size  capthis  Aircraft  Fuel  Airplanes (FS/W)  3  Sep 17, 2015 06:10 PM 
Discussion  Flightpower, New Formula is not equal to good formula?  MrMel  Batteries and Chargers  13  Nov 22, 2006 03:57 AM 