finally am understanding how a motor fly

[Bladers]

hey thz to all those who helped me out, but no one ever said,how to know which motor is fast and when the propeller is strong enough to lift it.

well i found out by my self.
if the propeller is circling right when you turn it on for like 5 sec then look at the main propeller very closely you will see it spinning left slowly that means it ready to fly.


if you have Rc helis you should know

[tommyeflight89]

Ya Batman!

[Karl B²]

And if you hold it in front of a television set while it's spinning, it will blow your mind!

[BMatthews]

Sorry bladers but that only means it's running under a flourescent light and you're seeing the strobe effect. Flourescent lights actually flash on and off 120 times per second. But your eye is slow to react so it sort of sees steady light. Sort of like your computer monitor is not actually a big picture. It's a dot of light that scans back and forth while stepping down a tiny bit after each line is drawn. As the spot of light flashes back and forth the spot changes color and intensity to draw the picture of the screen so many times per second. For your TV that is 30 times per second. For your computer monitor it is whatever the refresh rate is set for.

To find out if your motor and prop is strong enough to lift off you need to rubber band the motor to the end of a light stick that is about a foot long. Something like 1/4 sq balsa or even a pencil. Tape or rubber band it to one end of the stick and lightly hold the other end so that it can lift but not torque around. Wire the motor up to whatever battery supply you're using with a switch that is in your other hand. Fire it up and see if it lifts. Play with props to try some different options. If it doesn't lift then go buy a more powerful motor.

[Bladers]

i get it but how to do is diffucult to find one.
drawing it will make good view.
just a pic
and yes i will buy a powerful motor
oh yes one last thing before i go to school to know it will lift it will have to produce so much air that if theres paper under it or leafs it will blow it apart.

the motor/prop i have right now does a little effect
i do have a blade propeller i made but i cant dig a hoe in the middle dont have the instrument to dig trough blade i thing it is carbon fiber made i dont know


this motor is strong?HiModel HM20-40 KV2800 Brushless Motor

[Bladers]

you see it in this movie---the heli blowing the leafs
http://www.kreature.rchomepage.com/projects/mygg/heli_test_04.mpg
also if you go to his site you see all his movies
http://www.kreature.rchomepage.com/projects/mygg

[Bladers]

i get it now

[Bladers]

did it,
it bounced alot.
thAT ALL IT DID.
I DID IT WITH A RULER

[SaMx]

post video, or pictures
what did you do to correct for torque?
Give us a digram or something of what this device looks like.

[Bladers]

well i didnt hold the end of the ruler

[SaMx]

well i didnt hold the end of the ruler
I don't know what that means. Please explain in more detail what exactly you did.

[Gary Warner]

...and yes i will buy a powerful motor...this motor is strong?HiModel HM20-40 KV2800 Brushless Motor

hard to find for $13 :rolleyes:

[AntonL]

I think letting go of the ruler lets the motor really rip the bring into the leaves and paper.

Right on, that's totally Brick* man. ;)

Anton

[Bladers]

well it dont really matter now am gonna buy a hover copter for 20 dollars

[Gary Warner]

well it dont really matter now am gonna buy a hover copter for 20 dollars

That still leaves you $7 short. Maybe you can shovel some driveways ;).

[Bladers]

it cost 19.99 dollars on CVS

[infopimp]

I'm lost, but I think that's OK.

[Bladers]

i finally bought it

[SaMx]

good, but don't expect to be able to strap it to you shoes and fly around :D

[Karl B²]

If that's the thing that looks like a bicycle helmet, maybe all you need is a chin strap.

[Bladers]

lol

[Bladers]

my hover copter broke don fly anymore and my transmitter exploded i need to make a new one it 49mph

[csiga]

;>>

Bladers,

lets estimate the power needed to lift a motorbike,

let's say, motor cycle is 120kgs

you are 35 kgs

that is 155 kgs weight + motor + prop + power supply,




people here use helicopters about 2-5 kgs in weight,
consuming power of more than 600w / 2 kgs

so 155 kgs whould be approximately 77.5 times more power,
about 46500 W of power
that is 3875 A at 12V , or 80 huge GWS model motors,
huge li-polimer battery pack needed, huge esc

unfortunatly i think you will not be able to buy this for $20...