Feb 1, 2015 Smith Bi-Copter V1.2
I change flight control board to KK2.1 use firmware 1.19S1 Pro
and add bottom plate for lower CG

Feb 1, 2015 KK2.1 dualcopter FW 1.19S First test
my build bi-copter installed with KK2.1 FW 1.19S – DualCopter, Test Flight #1

Feb 3, 2015 KK2.1 DualCopter FW 1.19S1 Second test
second test with modify motor tilt. it flying better than the first test so much.

Feb 4, 2015 Smith Bi-Copter V1.2 First Flight
First flight of my build bi-copter ver 1.2 ,
Flight control KK2.1 firmware ver 1.19S1 DualCopter
Motor: EMAX2213 / propeller EMAX 1045
Servo: Sanwa SRM102
Battery: Li-Po 3S 11.1V 3000maH 30C

Feb 4, 2015 Smith Bi-Copter V1.2 Fly with head shell
This flight for test flying with head shell attach.
Smith Bi-Copter frame V1.2 / KK2.1 / EMAX2213 / EMAX1045 / Sanwa SRM102 / Li-Po 11.1V 3000maH 30C

Smith Bi-Copter V1.3 Falcon

Feb 7, 2015 Smith Bi-Copter V1.3 Falcon – Full 9 min fly continuous
test flight for my build bi-copter FALCON. full 9 minute continuous flying UNCUT, so you can see it stable fly well?
Frame: Smith bi-copter V1.3 FALCON
FCB : KK2.1 firmware 1.19S1 DualCopter
Motor : EMAX 2213 , Propeller EMAX 1045
Servo: Sanwa SRM102
Battery: Li-Po 3S 11.1V 3000maH 30C

Feb 8, 2015 KK2.1 Bi-Copter (DualCopter) – My build Falcon
My build Bi-Copter V1.3 Falcon – Short demo with hawk sound
Flying my build falcon in the morning, video was mixed with hawk sound effect

Feb 15, 2015 My bi-copter almost to gone with the wind
Morning flight of my bi-copter. today have winter wind that come from north to south. my bi-copter almost to gone with the wind.
KK2.1 / Emax2213 / Emax1045 / Sanwa SRM102 / Li-Po 3S 11.1V 3000maH 30C

Bi-Copter KK2.1

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11 thoughts on “Bi-Copter KK2.1

  1. Hi

    I like your project, I am assembled bicopter using kk 2.1, but I can’t tuning the controller PI, do you have the constant to send me?

    1. for bi-copter, use only P valueม P gain = 30 / P Limit = 100 , don’t use I (I gain=0 / I limit = 0).
      and use low frequenvy for ACC (filter=20Hz) is good for bi-copter.

  2. I’m curious to find out what blog platform you are
    utilizing? I’m experiencing some small security issues with my latest blog and I’d
    like to find something more secure. Do you have any suggestions?

    1. My mixer for bi-copter

      Roll CH1, Pitch CH2, Throttle CH3, Yaw CH4, Aux CH5

      CH, THR, AIL, ELE, RUD, OFS, TYPE, RATE
      CH1, 100, 100, 0, 0, 0, ESC, High
      CH2, 100, -100, 0, 0, 0, ESC, High
      CH3, 0, 0, 100, -100, 50, Servo, Low
      CH4, 0, 0, -100, -100, 50, Servo, Low

      1. thanks for the mixer….. i want to ask it’s normal when i tilt the board to the left, the supposed reaction is the left motor spinning at higher speed to counter back the situation, but what i faced is when i tilt the board to the left, the right motor spin at high speed…. it’s normal? or i need to do something to the board?

  3. thanks for the mixer….. i’ve a problem when i tilt the board to the left, the supposed reaction is the left motor spinning at higher speed to counter back the situation, but what i faced is when i tilt the board to the left, the right motor spin at high speed and fliping……what need to do with setting of the board?

  4. Sir i am studying mechanical 2nd year.I do your project but i have no idea.So please send me some tutorial of making bi-copter or otherwise send me some instruction.

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