How RC Helicopters Work: Fixed Pitch and Collective Pitch

This is a video I put together for the physics teacher at the school where I work. She was doing some lessons on fluid dynamics and thought it'd be fun to include a video about helicopters.

Category:

Education

Tags:

• helicopters
• flight
• fly
• dynamics
• aerodynamics
• fixed
• collective
• pitch
• cyclic
• hover
• exi450
• 450
• exi
• eflite
• blade
• msr
• how
• rc
• work
• how rc helicopters work

[flowersvalley]

hi this is impressive. what weight has the big one? what about its rpm. i am concern about its motor.

[CJVideoProductions]

@flowersvalley The big heli (the EXI 450) weighs about 850g with the battery. I'm running a Belt CP motor with a 10T pinion running about 2200rpm.

[CJVideoProductions]

@flowersvalley EDIT: in this video I was running a JustGoFly 500th motor with a 13T pinion running about 3000rpm

[iHEARTtechnos]

hi. how much did the big one cost? great vid!

[CJVideoProductions]

$40 for the air frame

$25 - Used JustGoFly 500th Motor

$20 - Exceed 40A ESC

$15 - TowerPro 9g Servos

$50 - used GY401 Gyro

$50 - AR6110 Receiver

$100 - used Spektrum DX6i Transmitter

____________________

$300 - ish

[medibosanac]

Great job on EXI 450. I am setting one up right now. pretty neat heli.

[nazr1e]

Thanks to you now I know how collective pitch rc helis work. Thanks!

[ClumsyRoot]

Very interesting. Thanks! :)

[onthegosec]

Yes! Thank You. This video help me make sense of the mechanics involved with RC Helicopters.

[iseldoff]

That was like the perfect explanation I was looking for thank you so much for this vid just one more thing though I get how these single blade helix work but what about the ones with two blades

[iHEARTtechnos]

@shebotnov where can i get one for a 100 bucks?

[shebotnov]

@iHEARTtechnos you can build same replica for 100 USD. Not 300

[victorlujan760]

wow this video is great and it teaches me all i need to know to build a helicopter thanks