Helicopters (90)

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Cheerwing syma X5SW-V3

This is my first drone and these are my experiences:  Cheerwing Syma X5SW-V3 FPV is the most unconventional headless quadcopter drone. If y…

Started by Holger Klingemeyer

0 Jul 31

ArduCopter Traditional Heli (was: "600-size heli")

I have just bought the ArduPilot Mega 2560 Full Kit... plus the Triple Axis Magnetometer HMC5883L. I should have it built over the weekend.…

Started by malcolm churn

1940 Jul 21
Reply by William Darry

Intrinsically Safe Helicopter Drones

Is there anyone that could please help me by telling me what the best intrinsically safe helicopter drone would be?

Started by Brandon Ellison

7 Feb 28
Reply by Jason Franciosa

Intrinsically Safe Helicopter Drones

Is there anyone that could please help me by telling me what the best intrinsically safe helicopter drone would be? I'm new to this site &a…

Started by Brandon Ellison

0 Feb 24

Cyclic elevator input causes rudder twitch in ground tests

Hi all, I recently noticed that moving the elevator stick position to check swash movement causes the tail servo to twitch? I thought that…

Started by Jack

0 Sep 15, 2016

Auto Pilot for rc helicopters

Hello, I am stating a project for installa an autopilot in a rc helicopter for an autopilot navigation system with GPS. Have someone here s…

Started by Cesare Bocconi

5 Jul 9, 2016
Reply by Marvelmind Robotics

rpm sensor

Can anyone know how to  add  a rpm sensor  into  pixhawk?  what kind of rpm sensor? How to inject the data into pixhawk? Thank you!

Started by christini guo

0 Mar 3, 2016

Estimate lift & power from rotor blade specifications

Hi, Long time lurker, but first time poster. I'm interested in designing a large scale tandem rotor and I've been attempting to estimate th…

Started by Tim Warren

0 Dec 4, 2015

Vortex 700

Vortex 700 First Flight https://www.youtube.com/watch?v=P_JZcrzBIGQ 700 Class Trex Build (Flight Video to come still in editing) My fri…

Started by UAS_Pilot

51 Sep 14, 2015
Reply by UAS_Pilot

rpm calculate using pwm

hello alias... i am new here.please help me.i want to measure and calculate rpm using pwm. is it any formula for calculate pwm? and i als…

Started by VIVEK KUMAR

1 Sep 6, 2015
Reply by Dwgsparky

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