Speed Calculator - Page 16 - RC-Monster Forums

jhautz · 01.16.2007, 11:18 PM

SLICK!!! I like it! Its looking as good as the info it contains now!!!

pinolelst · 01.16.2007, 11:34 PM

A bug IMHO..I tried inputting values for a xxx-t 2.43:1 tranny ratio 16 tooth pinion and 86 tooth spur 11.1 volts (3s lipo) mamba max 7700 kv motor and got a warning that my motor might overheat due to a 40k rpm limit on brushless motors and no top speed estimate was given...castle rates their motors at 65k and even then I'd exceed that but rather than get a warning and no output why not have the warning and give the user the option to proceed with the top speed estimate??

We all know there are a few of us who throw the warranty cards away in the interest of destructive testing for empirical data for the masses :005:

hope this helps

pinolelst

MetalMan · 01.16.2007, 01:51 AM

The Lipo hookup page should help a lot of people understand how Lipo packs are built. Here's an idea, though - maybe duplicate the single pack selection to show how to add two packs in series.

coolhandcountry · 01.17.2007, 12:23 PM

That is phat brian. I like the new page.
You not trying to make others look bad are you. ;)

BrianG · 01.17.2007, 12:56 PM

Quote:

Originally Posted by coolhandcountry

That is phat brian. I like the new page.
You not trying to make others look bad are you. ;)

Thanks!

What do you mean by trying to make others look bad??

crazyjr · 01.17.2007, 05:51 PM

Quote:

After a certain speed, wind resistance starts to become a serious limitation. Unfortunately, without all the aerodynamic figures from all the different vehicles, it is extremely difficult to factor this in.

I agree, when my T4 was being speed tested with a 3s lipo and a mamba max 5700, it was a little windy and even with a tailwind, my T4 would flip at 40 to 45 no matter how I pulled the trigger

coolhandcountry · 01.17.2007, 06:18 PM

It was a joke brian.

BrianG · 01.17.2007, 06:39 PM

Quote:

Originally Posted by coolhandcountry

It was a joke brian.

Oh. :) I was just confused. :confused:

BrianG · 01.17.2007, 10:08 PM

Does anyone have a decent AVI showing tire ballooning? I want to use it in the R/C calculator and turn it into an animated GIF. I can crop out unecessary parts of the "movie" as needed...

01.17.2007, 10:20 PM

Quote:

Originally Posted by BrianG

Does anyone have a decent AVI showing tire ballooning? I want to use it in the R/C calculator and turn it into an animated GIF. I can crop out unecessary parts of the "movie" as needed...

I don't know if this will help, its from serum's website (look at the top, there are some vids)

HERE

Bye:018:

BrianG · 01.17.2007, 11:12 PM

Thanks! That's actually the video I was thinking of, but couldn't remember where I saw it. But alas, my program (Animation Shop) won't let me convert it to a GIF (even though it has the ability). I wonder if it is a compressed AVI or something?

Hey Serum, do you have an uncompressed version or something? TIA!

Serum · 01.18.2007, 04:42 AM

Brian; What are you thinking about? I don't have got the original movies.. Lost in a crash..

Serum · 01.18.2007, 04:43 AM

what do you mean with 'effective speed-rate'?

jollyjumper · 10:12 AM

if you calculate your speed, on the bottom off the thingy it says:
effective speed rate: 1.67 mph/V ?!?
edit: nevermind i already know:D

BrianG · 11:04 AM

Serum: This is what I am talking about...

I converted it to an animated gif and just wanted to know if I could add it to the "help box"...

Oh, and the effective speed thing is how much speed you get per volt. It simply lets you guess-timate your speed if you simply add another volt of battery power or so to get your speed so you don't have to re-key all the values. I'm surprised it took this long for someone to say something since it's been there for at least a month.

Hint; if you click the little questionmark next to the field title, it'll tell you what it's for. ;)