Headspeed versus Pitch Experiment

[MariaFan]

Originally Posted by capt_charisma

At that time,Main & tail motors were stock motors.

So it looks like you didn't get anymore flying time by slowing the blades down?

[slamdance]

Just my 2cents on pitch curves:
1.) If you want "super fine" altitude control, say you are trying to fly in your apt(I'd never recommend that) or garage. Do this 50-55-60-65-70%.

2.) If you're thinking about doing some idle up, soon: set your normal curve to 50-50-50-75-100%. Get use to this more sensitive stick response. Note the midstick is equal to 50%. When you flip to idle up...there will be no pitch disturbance.

[capt_charisma]

Originally Posted by MariaFan

So it looks like you didn't get anymore flying time by slowing the blades down?

My intention was taking data for hovering RPM, attenuation rate of RPM and
battery voltage drop during around 4minutes.

I will send you by mail the FFT diagram for RPM changes of hovering test if you need.

[MariaFan]

Originally Posted by capt_charisma

My intention was taking data for hovering RPM, attenuation rate of RPM and
battery voltage drop during around 4minutes.

I will send you by mail the FFT diagram for RPM changes of hovering test if you need.

How are you measuring your blade RPM? Photo-tach?
I would be interested in seeing your data. Send me a PM if you like.
Thanks for the offer.

[capt_charisma]

Originally Posted by MariaFan

How are you measuring your blade RPM? Photo-tach?
I would be interested in seeing your data. Send me a PM if you like.
Thanks for the offer.

Hi MariaFan,
Main blade RPM is calculated by sound frequency generated by blades.
Just sent you PM.
Meanwhile, you may check following youtube and free soft.

R/C helicopter - DIY hatcam tachometer (6 min 49 sec)

http://sourceforge.net/projects/audacity/