Hey all! 
I feel like this might have something to do with "Airmode?" 
but when I fly up super high and pull throttle to zero, the drone just kinda flops around.
I know that the props are still spinning, and the quad is still armed, but it's like the accelerometer just shuts off and it floats as it pleases.

is there something I should enable in Betaflight to get this to go away? 
Thanks! 

-Ross

Make sure you enabled airmode. Also you can try to bump a little the idle throtle and see if it helps. Don't bump it to high though.
Are you flying on stable mode?

(17-Jun-2019, 07:13 PM)Maiden Flight Wrote: Make sure you enabled  airmode. Also you can try to bump a little the idle throtle and see if it helps. Don't bump it to high though.
Are you flying on stable mode?

there is definitely already some idle throttle happening. I know when I've armed the quad because the props all spin up.
I'm flying in acro mode. 

I'll plug it into Betaflight and do some tinkering (with props off of course

(17-Jun-2019, 07:54 PM)rossmoney Wrote: there is definitely already some idle throttle happening. I know when I've armed the quad because the props all spin up.
I'm flying in acro mode. 

I'll plug it into Betaflight and do some tinkering (with props off of course

Ok, so if you're flying acro the accelerometer doesn't do anything, only the gyro. 
Do you have airmode always on when flying? If not, and the iddle throtle is low, the quad will not maintain attitude if you cut it to zero throtle. You can even end in a sort of death roll where you can't regain control. 
On the bench is really hard to tune stuff, because motors will spin erratic as the gyro doesn't sense changes on the attitude of the quad.
Maybe you can search for a bit of PID tunning, I personally didn't do any of that yet 

Just because motor spin when armed, it does not mean you have Airmode active. It could just means you have "spin motor on arm" . Go to configuration tab and check airmode permanently. From what you described, your airmode is not on.

@OP - If you're not sure what you have switched on and what you don't, run the "dump" command in the CLI and copy/paste the results back here. We can then tell from that exactly what your current setup is.

You may be experiencing some "Vortex ring state" https://en.wikipedia.org/wiki/Vortex_ring_state
If you are talking about your mobula ( ducted props ) Mine suffers from it, as do all my whoops and ducted frames. It is most noticeable when you are descending almost vertically,  this puts you in " bad air " , a little bit of motion in any direction will stop it. When it starts "wobbling" just lean on the stick.

Maybe ?

Scott

(17-Jun-2019, 10:51 PM)SnowLeopardFPV Wrote: @OP - If you're not sure what you have switched on and what you don't, run the "dump" command in the CLI and copy/paste the results back here. We can then tell from that exactly what your current setup is.

PIDS DUMP

# dump
# Betaflight / NAZE 3.1.7 Apr 3 2017 / 22:12:24 (e1c4b5c)
name -
resource BEEPER 1 A12
resource MOTOR 1 A08
resource MOTOR 2 A11
resource MOTOR 3 B06
resource MOTOR 4 B07
resource MOTOR 5 B08
resource MOTOR 6 B09
resource MOTOR 7 NONE
resource MOTOR 8 NONE
resource MOTOR 9 NONE
resource MOTOR 10 NONE
resource MOTOR 11 NONE
resource MOTOR 12 NONE
resource SERVO 1 NONE
resource SERVO 2 NONE
resource SERVO 3 NONE
resource SERVO 4 NONE
resource SERVO 5 NONE
resource SERVO 6 NONE
resource SERVO 7 NONE
resource SERVO 8 NONE
resource PPM 1 A00
resource PWM 1 A00
resource PWM 2 A01
resource PWM 3 A02
resource PWM 4 A03
resource PWM 5 A06
resource PWM 6 A07
resource PWM 7 B00
resource PWM 8 B01
resource LED_STRIP 1 A06
resource SERIAL_TX 1 NONE
resource SERIAL_TX 2 NONE
resource SERIAL_TX 3 NONE
resource SERIAL_TX 4 NONE
resource SERIAL_TX 5 NONE
resource SERIAL_TX 6 NONE
resource SERIAL_TX 7 NONE
resource SERIAL_TX 8 NONE
resource SERIAL_TX 9 NONE
resource SERIAL_TX 10 NONE
resource SERIAL_TX 11 A07
resource SERIAL_TX 12 B01
resource SERIAL_RX 1 NONE
resource SERIAL_RX 2 NONE
resource SERIAL_RX 3 NONE
resource SERIAL_RX 4 NONE
resource SERIAL_RX 5 NONE
resource SERIAL_RX 6 NONE
resource SERIAL_RX 7 NONE
resource SERIAL_RX 8 NONE
resource SERIAL_RX 9 NONE
resource SERIAL_RX 10 NONE
resource SERIAL_RX 11 A06
resource SERIAL_RX 12 B00
mixer QUADX

mmix reset

servo 0 1000 2000 1500 90 90 100 -1
servo 1 1000 2000 1500 90 90 100 -1
servo 2 1000 2000 1500 90 90 100 -1
servo 3 1000 2000 1500 90 90 100 -1
servo 4 1000 2000 1500 90 90 100 -1
servo 5 1000 2000 1500 90 90 100 -1
servo 6 1000 2000 1500 90 90 100 -1
servo 7 1000 2000 1500 90 90 100 -1
smix reset


feature -RX_PPM
feature -VBAT
feature -INFLIGHT_ACC_CAL
feature -RX_SERIAL
feature -MOTOR_STOP
feature -SERVO_TILT
feature -SOFTSERIAL
feature -GPS
feature -FAILSAFE
feature -SONAR
feature -TELEMETRY
feature -CURRENT_METER
feature -3D
feature -RX_PARALLEL_PWM
feature -RX_MSP
feature -RSSI_ADC
feature -LED_STRIP
feature -DISPLAY
feature -OSD
feature -BLACKBOX
feature -CHANNEL_FORWARDING
feature -TRANSPONDER
feature -AIRMODE
feature -SDCARD
feature -VTX
feature -RX_SPI
feature -SOFTSPI
feature -ESC_SENSOR
feature -FEATURE_ANTI_GRAVITY
feature RX_PPM
feature GPS
feature FAILSAFE
beeper GYRO_CALIBRATED
beeper RX_LOST
beeper RX_LOST_LANDING
beeper DISARMING
beeper ARMING
beeper ARMING_GPS_FIX
beeper BAT_CRIT_LOW
beeper BAT_LOW
beeper GPS_STATUS
beeper RX_SET
beeper ACC_CALIBRATION
beeper ACC_CALIBRATION_FAIL
beeper READY_BEEP
beeper MULTI_BEEPS
beeper DISARM_REPEAT
beeper ARMED
beeper SYSTEM_INIT
beeper ON_USB
map TAER1234
serial 0 1 115200 57600 0 115200
serial 1 2 115200 38400 0 115200
led 0 0,0::C:0
led 1 0,0::C:0
led 2 0,0::C:0
led 3 0,0::C:0
led 4 0,0::C:0
led 5 0,0::C:0
led 6 0,0::C:0
led 7 0,0::C:0
led 8 0,0::C:0
led 9 0,0::C:0
led 10 0,0::C:0
led 11 0,0::C:0
led 12 0,0::C:0
led 13 0,0::C:0
led 14 0,0::C:0
led 15 0,0::C:0
led 16 0,0::C:0
led 17 0,0::C:0
led 18 0,0::C:0
led 19 0,0::C:0
led 20 0,0::C:0
led 21 0,0::C:0
led 22 0,0::C:0
led 23 0,0::C:0
led 24 0,0::C:0
led 25 0,0::C:0
led 26 0,0::C:0
led 27 0,0::C:0
led 28 0,0::C:0
led 29 0,0::C:0
led 30 0,0::C:0
led 31 0,0::C:0
color 0 0,0,0
color 1 0,255,255
color 2 0,0,255
color 3 30,0,255
color 4 60,0,255
color 5 90,0,255
color 6 120,0,255
color 7 150,0,255
color 8 180,0,255
color 9 210,0,255
color 10 240,0,255
color 11 270,0,255
color 12 300,0,255
color 13 330,0,255
color 14 0,0,0
color 15 0,0,0
mode_color 0 0 1
mode_color 0 1 11
mode_color 0 2 2
mode_color 0 3 13
mode_color 0 4 10
mode_color 0 5 3
mode_color 1 0 5
mode_color 1 1 11
mode_color 1 2 3
mode_color 1 3 13
mode_color 1 4 10
mode_color 1 5 3
mode_color 2 0 10
mode_color 2 1 11
mode_color 2 2 4
mode_color 2 3 13
mode_color 2 4 10
mode_color 2 5 3
mode_color 3 0 8
mode_color 3 1 11
mode_color 3 2 4
mode_color 3 3 13
mode_color 3 4 10
mode_color 3 5 3
mode_color 4 0 7
mode_color 4 1 11
mode_color 4 2 3
mode_color 4 3 13
mode_color 4 4 10
mode_color 4 5 3
mode_color 5 0 9
mode_color 5 1 11
mode_color 5 2 2
mode_color 5 3 13
mode_color 5 4 10
mode_color 5 5 3
mode_color 6 0 6
mode_color 6 1 10
mode_color 6 2 1
mode_color 6 3 0
mode_color 6 4 0
mode_color 6 5 2
mode_color 6 6 3
mode_color 6 7 6
mode_color 6 8 0
mode_color 6 9 0
mode_color 6 10 0
mode_color 7 0 3
aux 0 0 0 1900 2100
aux 1 1 1 900 1100
aux 2 2 1 1375 1650
aux 3 0 0 900 900
aux 4 0 0 900 900
aux 5 0 0 900 900
aux 6 0 0 900 900
aux 7 0 0 900 900
aux 8 0 0 900 900
aux 9 0 0 900 900
aux 10 0 0 900 900
aux 11 0 0 900 900
aux 12 0 0 900 900
aux 13 0 0 900 900
aux 14 0 0 900 900
aux 15 0 0 900 900
aux 16 0 0 900 900
aux 17 0 0 900 900
aux 18 0 0 900 900
aux 19 0 0 900 900
adjrange 0 0 0 900 900 0 0
adjrange 1 0 0 900 900 0 0
adjrange 2 0 0 900 900 0 0
adjrange 3 0 0 900 900 0 0
adjrange 4 0 0 900 900 0 0
adjrange 5 0 0 900 900 0 0
adjrange 6 0 0 900 900 0 0
adjrange 7 0 0 900 900 0 0
adjrange 8 0 0 900 900 0 0
adjrange 9 0 0 900 900 0 0
adjrange 10 0 0 900 900 0 0
adjrange 11 0 0 900 900 0 0
adjrange 12 0 0 900 900 0 0
adjrange 13 0 0 900 900 0 0
adjrange 14 0 0 900 900 0 0
rxrange 0 2003 1003
rxrange 1 1003 2003
rxrange 2 2003 1003
rxrange 3 1002 2003
rxfail 0 a
rxfail 1 a
rxfail 2 a
rxfail 3 a
rxfail 4 h
rxfail 5 h
rxfail 6 h
rxfail 7 h
rxfail 8 h
rxfail 9 h
rxfail 10 h
rxfail 11 h
rxfail 12 h
rxfail 13 h
rxfail 14 h
rxfail 15 h
rxfail 16 h
rxfail 17 h
set task_statistics = ON
set mid_rc = 1500
set min_check = 1100
set max_check = 1900
set rssi_channel = 0
set rssi_scale = 30
set rc_interp = AUTO
set rc_interp_ch = RP
set rc_interp_int = 19
set rssi_invert = OFF
set input_filtering_mode = OFF
set fpv_mix_degrees = 0
set max_aux_channels = 6
set debug_mode = NONE
set min_throttle = 1100
set max_throttle = 1900
set min_command = 1015
set 3d_deadband_low = 1406
set 3d_deadband_high = 1514
set 3d_neutral = 1460
set 3d_deadband_throttle = 50
set use_unsynced_pwm = OFF
set motor_pwm_protocol = ONESHOT125
set motor_pwm_rate = 480
set disarm_kill_switch = ON
set gyro_cal_on_first_arm = OFF
set auto_disarm_delay = 5
set small_angle = 180
set fixedwing_althold_dir = 1
set reboot_character = 82
set serial_update_rate_hz = 100
set beeper_inversion = OFF
set beeper_od = ON
set serialrx_provider = SBUS
set sbus_inversion = ON
set spektrum_sat_bind = 0
set spektrum_sat_bind_autorst = 1
set tlm_switch = OFF
set tlm_inversion = ON
set sport_halfduplex = ON
set frsky_default_lat = 0.000
set frsky_default_long = 0.000
set frsky_gps_format = 0
set frsky_unit = IMPERIAL
set frsky_vfas_precision = 0
set frsky_vfas_cell_voltage = OFF
set hott_alarm_int = 5
set pid_in_tlm = OFF
set bat_capacity = 1300
set vbat_scale = 110
set vbat_max_cell_voltage = 40
set vbat_min_cell_voltage = 30
set vbat_warning_cell_voltage = 30
set vbat_hysteresis = 1
set ibat_scale = 0
set ibat_offset = 0
set mwii_ibat_output = OFF
set current_meter_type = ADC
set battery_meter_type = NONE
set bat_detect_thresh = 55
set use_vbat_alerts = ON
set use_cbat_alerts = OFF
set cbat_alert_percent = 10
set align_gyro = DEFAULT
set align_acc = DEFAULT
set align_mag = DEFAULT
set align_board_roll = 0
set align_board_pitch = 0
set align_board_yaw = 0
set gyro_lpf = OFF
set gyro_sync_denom = 8
set gyro_isr_update = OFF
set gyro_use_32khz = OFF
set gyro_lowpass_type = PT1
set gyro_lowpass = 90
set gyro_notch1_hz = 400
set gyro_notch1_cut = 300
set gyro_notch2_hz = 200
set gyro_notch2_cut = 100
set moron_threshold = 48
set imu_dcm_kp = 2500
set imu_dcm_ki = 0
set alt_hold_deadband = 40
set alt_hold_fast_change = ON
set deadband = 0
set yaw_deadband = 0
set thr_corr_value = 0
set thr_corr_angle = 800
set yaw_control_direction = 1
set yaw_motor_direction = 1
set servo_center_pulse = 1500
set tri_unarmed_servo = ON
set servo_lowpass_hz = 400
set servo_lowpass = OFF
set servo_pwm_rate = 50
set gimbal_mode = NORMAL
set channel_forwarding_start = 4
set airmode_start_throttle = 1350
set failsafe_delay = 10
set failsafe_off_delay = 0
set failsafe_throttle = 1100
set failsafe_kill_switch = OFF
set failsafe_throttle_low_delay = 100
set failsafe_procedure = DROP
set rx_min_usec = 885
set rx_max_usec = 2115
set acc_hardware = AUTO
set acc_lpf_hz = 10
set accxy_deadband = 40
set accz_deadband = 40
set acc_unarmedcal = ON
set acc_trim_pitch = 0
set acc_trim_roll = 0
set baro_tab_size = 21
set baro_noise_lpf = 0.600
set baro_cf_vel = 0.985
set baro_cf_alt = 0.965
set baro_hardware = AUTO
set pid_process_denom = 1
set blackbox_rate_num = 1
set blackbox_rate_denom = 1
set blackbox_device = SERIAL
set blackbox_on_motor_test = OFF
set ledstrip_visual_beeper = OFF
profile 0

set pidsum_limit = 0.500
set pidsum_limit_yaw = 0.500
set d_lowpass_type = BIQUAD
set d_lowpass = 100
set d_notch_hz = 260
set d_notch_cut = 160
set vbat_pid_gain = OFF
set pid_at_min_throttle = ON
set anti_gravity_thresh = 350
set anti_gravity_gain = 3.000
set setpoint_relax_ratio = 0
set d_setpoint_weight = 0
set yaw_accel_limit = 0.000
set accel_limit = 0.000
set iterm_windup = 50
set yaw_lowpass = 0
set p_pitch = 65
set i_pitch = 50
set d_pitch = 50
set p_roll = 55
set i_roll = 42
set d_roll = 40
set p_yaw = 80
set i_yaw = 55
set d_yaw = 15
set p_alt = 55
set i_alt = 55
set d_alt = 0
set p_level = 46
set i_level = 50
set d_level = 75
set p_vel = 120
set i_vel = 45
set d_vel = 1
set level_sensitivity = 55
set level_limit = 55
rateprofile 0
rateprofile 0

set rc_rate = 70
set rc_rate_yaw = 60
set rc_expo = 0
set rc_yaw_expo = 0
set thr_mid = 0
set thr_expo = 0
set roll_srate = 80
set pitch_srate = 80
set yaw_srate = 72
set tpa_rate = 0
set tpa_breakpoint = 1650

#

---

(18-Jun-2019, 03:30 AM)Scott_M Wrote: You may be experiencing some "Vortex ring state" https://en.wikipedia.org/wiki/Vortex_ring_state
If you are talking about your mobula ( ducted props ) Mine suffers from it, as do all my whoops and ducted frames. It is most noticeable when you are descending almost vertically,  this puts you in " bad air " , a little bit of motion in any direction will stop it. When it starts "wobbling" just lean on the stick.

Maybe ?

Scott

This happens all the time with my iflight cinebee!
I’ve seen lots of youtubers talk about.
It feels a little different than that

In CLI copy these commends. It is not likely Vortex ring state. You don't have airmode on.

feature AIRMODE
save

(18-Jun-2019, 03:47 PM)voodoo614 Wrote: In CLI copy these commends. It is not likely Vortex ring state. You don't have airmode on.

feature AIRMODE
save

excellent thank you so much!