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Home🌌Off Topics🌌Off Topics Main Discussion › Nitro vs. Electric
04-30-2011 05:08 PM  10 years ago
McKrackin

rrProfessor

Lucasville,Ohio

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you crashed your 600 because you could not feel your sticks get the surgery.

now your gonna fly a nitro Mr safety hahaha .

that 700 is gonna be taking a dirt nap just like your 600 did.

that 600 crash was the best crash that i ever saw i creamed all over my self please do it again
You have smoked enough crack that you don't even know who you're trying to insult anymore.
What surgery? You're trying to rag on someone else

You have never seen my crash.No video has ever existed for it.

Get some help before you OD or something.
I literally never use the word literally right.
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04-30-2011 05:13 PM  10 years ago
McKrackin

rrProfessor

Lucasville,Ohio

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225amps X 240 volts = 54000 watts = 72hp that's some wicked 1hp compressor

1hp electric motor on 240v will draw about 3-5 amps after start up depending on efficiency of motor
I took a quick look and the compressor is a 5 HP.My bad.lol...
A 1 HP motor would draw 3-5 amps if it was sitting there spinning but when it's running a pretty heavy piece of equipment like a V twin high volume quick recovery pump,well,that's a bit different.

Also,I said it drew more power than my 225 amp welder.
It does.
The welder doesn't draw 225 amps though.It produces it.
It runs off a 50 amp breaker so it must not reach 50 amps.lol...

Figuring electric HP on paper is not practical.

That equation doesn't work in real world applications.Sorry.
There's a little more involved.

You guys keep using it to show your crazy HP on your pocket sized electric motors.lol....
I literally never use the word literally right.
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04-30-2011 05:28 PM  10 years ago
elkmaster01

rrApprentice

Belt MT

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that 600 crash was the best crash that i ever saw i creamed all over my self please do it again
No,,,I think the best crash you ever saw was the 450 flying at the playground and someone ran it right into a moving pickup!! Or was it when someone hit their wives car? Maybe it was when a 450 spun up on the picknic table 2" from a guys face? How about the guy that got dissorientated just trying to WALK with his heli nose-in and crashed it?

Maybe the funniest thing is the guy that has been trying to fly for 2 1/2 years and still can't! Can we get some more 'sim' videos please?

Naw,,,my 600 was minor-league!! Sorry!
Randy
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04-30-2011 05:42 PM  10 years ago
BladeStrikes

rrElite Veteran

Shelby TWP,Mi

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You guys keep using it to show your crazy HP on your pocket sized electric motors.lol....
The motor in my 600E is bigger than your OS 91 ..
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04-30-2011 05:44 PM  10 years ago
McKrackin

rrProfessor

Lucasville,Ohio

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Cmon now having tractors alone doesent qualify one as a mechanical expert only qualifies you to a red neck tan and a smelly body. . I've ran my fair share of large equipment in my life btw
Just have to resort to personal attacks huh?
Real class act there troll.
I literally never use the word literally right.
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04-30-2011 05:46 PM  10 years ago
McKrackin

rrProfessor

Lucasville,Ohio

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The motor in my 600E is bigger than your OS 91
Sure is.

Neither is a 5 HP motor though.lol...
And what was the claim on the other electric? 13+ HP ?

That's more than a pretty good sized dirt bike.
I literally never use the word literally right.
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04-30-2011 05:47 PM  10 years ago
wc_wickedclown (RIP)

rrProfessor

long beach calif

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nitro is for men
electric is for the kiddys

but i love them both but i love my nitros the best
Insha Allah made in america
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04-30-2011 05:51 PM  10 years ago
elkmaster01

rrApprentice

Belt MT

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Here's a clue,,,,,if you can't fly electric,,you can't fly nitro,,,,,,and vise-versa!!Randy
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04-30-2011 05:53 PM  10 years ago
Stephen Born

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USA

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Man, this forum is getting heated.

I have had a Kinetic 50, and I currently fly a T-Rex 700e. In my opinion, I just like the plug-n-play. I didn't care for tuning the engine. In fact, I believe you have to have an ear for if an engine is running smoothly or not. I just don't have that quality as the nitro pilots do. In addition, the oily mess it left after each flight. Nothing wrong with nitros at all, but I enjoy my electrics. Just my 2 cents.
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04-30-2011 05:57 PM  10 years ago
wc_wickedclown (RIP)

rrProfessor

long beach calif

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AerialSkyCam Man, this forum is getting heated.

I have had a Kinetic 50, and I currently fly a T-Rex 700e. In my opinion, I just like the plug-n-play. I didn't care for tuning the engine. In fact, I believe you have to have an ear for if an engine is running smoothly or not. I just don't have that quality as the nitro pilots do. In addition, the oily mess it left after each flight. Nothing wrong with nitros at all, but I enjoy my electrics. Just my 2 cents.
ill take that Kinetic 50 off your hands brother
Insha Allah made in america
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04-30-2011 06:00 PM  10 years ago
Stephen Born

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USA

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wc_wickedclown,

You already have 10 helis!!
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04-30-2011 06:05 PM  10 years ago
OICU812

rrMaster

Grande Prairie, Alberta, Canada

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Mcrackin you need a woman your losing touch! Can't tell the difference when people are bustin ur balls or serious, chill tractor chill! meanwhile many have explained in detail how to calculate hp with electrics you keep posting it's incorrect please indulge us with exactly how it is supposes to be wise one.

Have good weekend guys, we'll see where this mess is come Sunday night.
...Once upon a time there were Nitros, flybars and frequency pins...
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04-30-2011 06:09 PM  10 years ago
rexxigpilot

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rexxig2@comcast.net

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Figuring electric HP on paper is not practical.

That equation doesn't work in real world applications.Sorry.
There's a little more involved.
Please explain for us all what else is involved? It is a fundamental fact that 746 W of power equals 1 electrical horsepower. 1 mechanical horsepower is equal to 745.7 W.

I think you don't understand torque versus power if you can't grasp that a small RC electric motor can make as much power as a large industrial motor. Power is a product of torque and angular velocity (RPM). The larger, slower motor makes much more torque at its normal operating speed than the RC motor, but the higher speed of the RC motor makes up for it. If you took two motors of equal power (say 5 HP), with one being a 30K RPM high speed RC motor and the other being a 1750 RPM industrial motor for say a planer, you could gear the faster motor to turn at the same RPM and it would make about the same torque. You will lose some efficiency (~1-2%) due to the gearing. But, I can guaranty that the 5 HP RC motor when geared down for torque will rip your arm off.
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04-30-2011 06:31 PM  10 years ago
tadawson

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Lewisville, TX

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It's also a well known fact that electrical to mechanical conversions waste a large amount of power as heat, which never makes it to the mechanical side . . .

So, it's more like 746W electrical divided by the system efficiency gives mechanical output. I have seen 45% as a typical figure (I'll use 50% to make the math easier) so that means that you only get 373W out the mechanical side, and the other 373W out as heat . . .

If the system were 100% efficient, it would not get hot or even warm . . . . but instead, you have losses due to resistance/heating in the wiring, in the ESC, and in the motor itself. Once you get to the shaft, system losses will be the same no matter what the power system, so those won't be considered.

In Nitro, you have to consider the efficiency of converting the energy present in the fuel to mechanical energy, and you have losses due to heat, as well as unburned fuel, but none of the losses in the electrical system.

So basically, the same rules apply to any power system converting some form of energy to motion . . . there is always a loss - otherwise we would have perpetual motion!

- Tim
Friends don't let friends become electrotarded . . . .
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04-30-2011 06:34 PM  10 years ago
wc_wickedclown (RIP)

rrProfessor

long beach calif

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AerialSkyCam wc_wickedclown,

You already have 10 helis!!
lol 1 more wont hurt
Insha Allah made in america
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04-30-2011 06:39 PM  10 years ago
elkmaster01

rrApprentice

Belt MT

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wc_wickedclown,

You already have 10 helis!!
He wants ONE that will actually fly!!
Randy
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04-30-2011 07:23 PM  10 years ago
Band1086

rrElite Veteran

Kennewick, Wa. USA

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I have seen 45% as a typical figure (I'll use 50% to make the math easier) so that means that you only get 373W out the mechanical side, and the other 373W out as heat . . .
Tim, what motors have you seen at 45% efficiency...are you talking about industrial motors? The reason I ask is most rc brushless motors I've seen have an efficiency rating of more like 85% as a very common number. Some are even higher. Now, that is certainly not perpetual motion, but it's a whole lot better efficiency then 45%...

BTW, the efficiency numbers I've heard for ic glow engines is about 10%, but because there is quite a bit more energy stored in liquid form than can be store in current battery tech, the difference in power output in not as dramatic as 10% to 85%.
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04-30-2011 07:32 PM  10 years ago
tadawson

rrElite Veteran

Lewisville, TX

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Thanks for missing the point! The efficiency number was *NOT* my point - I chose an easy number as an example. The point was that most of the e-fanboys tend to ignore losses due to efficiency - IE the power that goes in, is not (at least mechanically) what comes *OUT*.

And I thought I saw someone throw out 45% a few posts ago, so ran with it, since it's close to 50% (IE an easy example to show . . . ).

Specifically:
No they don't. The power plant that produced your power operates at about 45%. Then add transmission loss. Then. . .
And while the *motor* may be better than that, take a look at the overall *system* - ESC, wiring, and motor, and see if your figure still looks that good . . . . Losses in E start with the internal resistance in the battery (which causes it to heat) and go on from there . . .

- Tim
Friends don't let friends become electrotarded . . . .
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04-30-2011 08:30 PM  10 years ago
Band1086

rrElite Veteran

Kennewick, Wa. USA

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Thanks for missing the point!
I didn't miss your point at all, I completely understand that power in does not equate to power out. However, for the guys that have data logging capability, it's a lot of fun to talk about peak watts and/or average watts on the logger. They are watts going into the motor wires and motor, but if you know the efficiency of the motor, it's a good indication of what the motor output is. Also, the logger shows the max and average temp of the esc, and I can put a temp gauge on the batts to show they are running cool and check IR on the charger...so all that info is available. The E systems are very efficient when set up properly and the data will show it. BTW, we are talking peaks not continuous output on those high wattage numbers.
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04-30-2011 08:40 PM  10 years ago
Richardmid1

rrProfessor

Leeds, England

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Keep the efficiency, ill take the power! And the ability to park at the side of the road and fly 3 packs in a field with my 700E and drive off 20 mins later, clean and with a big smile on my face.

The internal combustion angine isn't exactly the most efficient thing in the world, completely the opposite I think you'll find.
60% of the time, it works every time!
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