RC-Monster Forums

RC-Monster Forums (https://www.rc-monster.com/forum/index.php)
-   Brushless (https://www.rc-monster.com/forum/forumdisplay.php?f=12)
-   -   Watts is watts? (https://www.rc-monster.com/forum/showthread.php?t=6128)

Serum 03.27.2007 04:44 PM

Your XL was a league on its own!

neweuser 03.27.2007 04:46 PM

very true! he had better temps than I did too. i was very surprised to say the least in the performance in that motor in the heavy of a truck....

Serum 03.27.2007 04:46 PM

yeah, they work miracles. No doubt.

zeropointbug 03.27.2007 04:55 PM

I wouldn't doubt it, it's just the temprature problem, trying to keep those little demons down to a decent temp. How hot did it run? and how fast?

I remember lot's of ppl used to use Lehner Basic's, they went pretty dang fast too, about 35mph tops.

IMO, I think we can, and should be using small motors... it's just a matter of getting the most ideal turns, voltage, and efficiency curve. I've seen the Lehner motors have much different eff. curves with diff # turns/voltage. EX. The 3080/40t on 100 volts has VERY higher efficiency at lower torques, and drops off slightly as you increase current (torque); the same 3080 with 15 turns running 50 volts has fairly low efficiency at lower torques (current), but gradually increaes as you up the current. It all depends on what is required more, and what kind of duty cycle is observed, like acceleration/cruising to get the best AVERAGE efficiency, thus power consumption.

But really, as long as a motor is suitably sized, you will have very decent efficiency, if you want to go the extra mile and score a few % points, for extra runtime, or cooler running, or less weight due to less batteries needed, or whatever. That's what makes this sport so addicting :004: , and frustrating at times :031:

Zero

zeropointbug 03.27.2007 04:59 PM

geez, i thought the 1930 was almost too small, now I hear the 1920 :005:

neweuser 03.27.2007 05:04 PM

yeah, and I think sjcrss' truck was a good 13lbs....the temps stayed real cool too, he could put his finger on and leave it there.

Serum 03.27.2007 05:10 PM

back in the days we used CD-rom player motors to power our vehicles!

neweuser 03.27.2007 05:12 PM

Is that a joke? Or are you serious? Was this 1/20th scale? LMAO

zeropointbug 03.27.2007 05:14 PM

1/40th scale :005:

Serum 03.27.2007 05:14 PM

listen buddy, i am not wearing my red nose and floppy shoes for nothing..

zeropointbug 03.27.2007 05:18 PM

LOL, he's serious!

What was the wattage on those motors? A hair raising 10 watts? :017:


:036:

Serum 03.27.2007 05:20 PM

It's all about torque..

zeropointbug 03.27.2007 05:22 PM

true, true, I suppose it needs enough torque to overcome the aerodynamic losses of the pinion/spur gear :005:

Serum 03.27.2007 05:25 PM

Did i mentioned the experiment with 5S on the cell-phone vibrators?

Truck didn't went forwards nor backwards, but BOY it was shaking like nothing else..

zeropointbug 03.27.2007 05:28 PM

ppsshhh, that's nothin, try using an electric jack hammer actuator! It had 15 inch vibrating wave length... :007:

neweuser 03.27.2007 05:29 PM

L M A O!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I wonder how my girl would like that?

zeropointbug 03.27.2007 05:34 PM

Well, :010: either that, or the washing machine.... lol

neweuser 03.27.2007 05:36 PM

LOL, the washing machine can be plugged in and never ending juice...good point!

Serum 03.27.2007 05:37 PM

Oldest trick in the book..

zeropointbug 03.27.2007 05:38 PM

....It's only practical!


All times are GMT -4. The time now is 11:39 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.