In this way, the speedo and batteries will limit the total available power.
The Speed 900's will demand a Sidewinder or stronger to give their potential. And then the 130mm wheels will prove an advantage.
I'm using 30a electronizes so am i right in thinking if i use two per motor, ill get 60a possibly from each motor? I'm using lipo so easily can deliver that sort of power
The only result you'll have with 2 speedo's feeding 1 motor is 2 dead speedo's.
To make it simple. A speedo works because it cuts up the electricity in parts, and these parts can be shortened or lengthened.
You could sy, 1 minute is 1000 parts (the whole thing will buzz @1KHz) and each part can be run from 0 to 100%
0 is no power, 100 is full trottle. Now the cutting up is done with mosfets in most speedo's. For explanation function, these mosfets are tiny electricaly switched switches.
Now, try to switch 1 lightbulb with 2 switches. Each switch is in a different room, and you will have to switch exactly at the same time, otherwise you'll have a short.
Get it now. Thanks! The sidewinder has been discontinued now so I'll scrap the whole project for now me thinks
No need too, you can use that 130mm 7.5-1 gearratio speed 900 setup at a much lower voltage and still get respectable power.
Let us say, 10S NiMH=12V
Speed 900@12V=6600 rpm
6600/7.5=880rpm
130mm*pi*880=359216mm/min= 359216/1000000*60=21.5km/h
Even dropping back to 3S Lipo gives you 19.9km/h
Or 3S LiFePo = 17.7km/h
So what your saying is if I run a speed 900 on a 30a electronize at 22.2v, it will probably blow the esc?
The ESC will be a limiting factor.
On the other hand, if 666W per side ain't enough, you're in the wrong weightclass.
But, the Speed 900 setup as you propose runs a tad fast, doesn't it.
42km/h is a tadoverkill.
So, why the persistent use of the 22.2V? It's not if a 2450mAh 3S Lipo is that expensive.
Have a 6s lipo so makes sense to use what I've got. Thank you for your help by the way.
Strange reasoning. ‚20 to have a battery that is lighter, smaller and more useable for the idea, of trowing a complete idea in the garbage can?
Also, if you want to use the 6S to drive a spinner, even then a seperate drive-battery ain't the worst idea you can implement.
What do people think of these pinions?
http://www.fxaeromodels.com/product_inf ... ts_id=4671
From brushless rc helicopters, just a bit worried about durability
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