# v1.14 **URL:** https://discuss.px4.io/c/flight-testing/v1-14/61.md [Latest](https://discuss.px4.io/latest.md) · [Categories](https://discuss.px4.io/categories.md) --- ## [About the v1.14 category](https://discuss.px4.io/t/about-the-v1-14-category/33066)
**Author:** [@junwoo0914](https://discuss.px4.io/u/junwoo0914)\ **Replies:** 0
--- ## [New Flight Control loop that finds mathematically the smallest trajectory divergence and tendency to crash](https://discuss.px4.io/t/new-flight-control-loop-that-finds-mathematically-the-smallest-trajectory-divergence-and-tendency-to-crash/48534)
**Author:** [@Deven\_Kishor](https://discuss.px4.io/u/Deven_Kishor)\ **Replies:** 2\ **Last updated:** [February 24, 2026, 6:24am UTC](https://discuss.px4.io/t/new-flight-control-loop-that-finds-mathematically-the-smallest-trajectory-divergence-and-tendency-to-crash/48534 "2026-02-24T06:24:13Z")
I have build and testing simulation the advanced flight control system that is not reactive to mean square error but detecting early mathematical seed of instability. Thereby my control system is different from correcti… --- ## [Time-sync drift between Jetson and Pixhawk using micro-XRCE-DDS](https://discuss.px4.io/t/time-sync-drift-between-jetson-and-pixhawk-using-micro-xrce-dds/47961)
**Author:** [@skevin](https://discuss.px4.io/u/skevin)\ **Replies:** 0\ **Last updated:** [November 21, 2025, 4:44pm UTC](https://discuss.px4.io/t/time-sync-drift-between-jetson-and-pixhawk-using-micro-xrce-dds/47961 "2025-11-21T16:44:06Z")
Hi everyone, I’m running a Jetson AGX Orin as a companion computer connected to a Pixhawk V6X through the micro-XRCE-DDS bridge. I process camera images on the Jetson and need to align them with IMU timestamps coming fr… --- ## [Quadrucopter termination](https://discuss.px4.io/t/quadrucopter-termination/47909)
**Author:** [@Mer\_Alba](https://discuss.px4.io/u/Mer_Alba)\ **Replies:** 0\ **Last updated:** [November 18, 2025, 1:19pm UTC](https://discuss.px4.io/t/quadrucopter-termination/47909 "2025-11-18T13:19:50Z")
Hi! Could someone help me analyze this log? We are experiencing a failsafe, but I’m not sure what the root cause might be I have extracted the csv from the ulog and I have reviewed all the tables on the timestamp when… --- ## ["transition started with airspeed 15.6" but my airspeed never dropped below 19](https://discuss.px4.io/t/transition-started-with-airspeed-15-6-but-my-airspeed-never-dropped-below-19/47480)
**Author:** [@aiyuan](https://discuss.px4.io/u/aiyuan)\ **Replies:** 1\ **Last updated:** [September 24, 2025, 8:51pm UTC](https://discuss.px4.io/t/transition-started-with-airspeed-15-6-but-my-airspeed-never-dropped-below-19/47480 "2025-09-24T20:51:33Z")
like this --- ## [PX4 v1.14: High Vibrations and Accelerometer Clipping on Pixhawk 4 Mini and Matek H743 Slim](https://discuss.px4.io/t/px4-v1-14-high-vibrations-and-accelerometer-clipping-on-pixhawk-4-mini-and-matek-h743-slim/45561)
**Author:** [@knolle](https://discuss.px4.io/u/knolle)\ **Replies:** 3\ **Last updated:** [May 25, 2025, 9:38pm UTC](https://discuss.px4.io/t/px4-v1-14-high-vibrations-and-accelerometer-clipping-on-pixhawk-4-mini-and-matek-h743-slim/45561 "2025-05-25T21:38:56Z")
I’m using two different quadcopter setups: one based on the Pixhawk 4 Mini and the other on the Matek H743 Slim. Both are running PX4 v1.14, and with each I’m experiencing accelerometer clipping. For the Pixhawk setup, … --- ## [Thrust spike seconds after takeoff](https://discuss.px4.io/t/thrust-spike-seconds-after-takeoff/37891)
**Author:** [@AngelAlbeniz](https://discuss.px4.io/u/AngelAlbeniz)\ **Replies:** 3\ **Last updated:** [December 11, 2024, 3:10pm UTC](https://discuss.px4.io/t/thrust-spike-seconds-after-takeoff/37891 "2024-12-11T15:10:57Z")
Hi, I’m doing flight tests and tuning on a small/medium size UAV platform (Quadcopter, MTOW: 1.5Kg, 11inch propellers, 5s battery, etc). And I am experiencing strange behavior on all the test flights I am doing on the p… --- ## [Height estimation error](https://discuss.px4.io/t/height-estimation-error/34674)
**Author:** [@Nonn0](https://discuss.px4.io/u/Nonn0)\ **Replies:** 4\ **Last updated:** [December 11, 2024, 10:27am UTC](https://discuss.px4.io/t/height-estimation-error/34674 "2024-12-11T10:27:32Z")
We have problems flying offboard using Vison, where we are not able to takeoff at a predefined altitude (we are flying indoor). Then I investigated a little be more and hence I did a test (here the result: https://logs.… --- ## [Oscillations after Take-Off then Rapid Descent to Ground](https://discuss.px4.io/t/oscillations-after-take-off-then-rapid-descent-to-ground/41894)
**Author:** [@royawood](https://discuss.px4.io/u/royawood)\ **Replies:** 2\ **Last updated:** [November 2, 2024, 5:31am UTC](https://discuss.px4.io/t/oscillations-after-take-off-then-rapid-descent-to-ground/41894 "2024-11-02T05:31:52Z")
First post, I built a Tarot 960 hexacopter and I have flown it without issue when flying the frame and battery (even though the battery makes the frame unbalanced); however when I mount a payload (balanced), I get weird… --- ## [Vibration metrics question](https://discuss.px4.io/t/vibration-metrics-question/41772)
**Author:** [@Joseph\_Marrone](https://discuss.px4.io/u/Joseph_Marrone)\ **Replies:** 6\ **Last updated:** [October 30, 2024, 11:41pm UTC](https://discuss.px4.io/t/vibration-metrics-question/41772 "2024-10-30T23:41:50Z")
Hello folks: I’m showing here two Vibration Metrics graphs taken about a year and a half apart. There is a big difference in the numerical magnitude of vibration at these two different times. Both graphs are from a Ta… --- ## [AUTO.LAND going to the origin with optical flow](https://discuss.px4.io/t/auto-land-going-to-the-origin-with-optical-flow/40767)
**Author:** [@P\_Trindade](https://discuss.px4.io/u/P_Trindade)\ **Replies:** 3\ **Last updated:** [October 30, 2024, 9:10am UTC](https://discuss.px4.io/t/auto-land-going-to-the-origin-with-optical-flow/40767 "2024-10-30T09:10:17Z")
Hello, I am trying to setup a small quadrotor for indoor use. We have been resorting to an External Positioning System (Optitrack), but we are now trying to setup a drone with optical flow only. The estimates seem to … --- ## [Sudden Uncommanded Roll Leading to Crash with external vision position](https://discuss.px4.io/t/sudden-uncommanded-roll-leading-to-crash-with-external-vision-position/42086)
**Author:** [@Nikola](https://discuss.px4.io/u/Nikola)\ **Replies:** 0\ **Last updated:** [October 24, 2024, 12:09pm UTC](https://discuss.px4.io/t/sudden-uncommanded-roll-leading-to-crash-with-external-vision-position/42086 "2024-10-24T12:09:19Z")
Hello PX4 Support Team, Issue Summary: I’m experiencing a critical issue with my drone where it suddenly rolls very rapidly and crashes during flight. This behavior occurs randomly, and I’m unsure whether it’s caused b… --- ## [Accel clipping midflight on altitude mode](https://discuss.px4.io/t/accel-clipping-midflight-on-altitude-mode/41638)
**Author:** [@px4sami](https://discuss.px4.io/u/px4sami)\ **Replies:** 5\ **Last updated:** [September 30, 2024, 12:25pm UTC](https://discuss.px4.io/t/accel-clipping-midflight-on-altitude-mode/41638 "2024-09-30T12:25:27Z")
I have a problem with my X500 V2 drone that suddenly get rolled hard and the logs says there is an accel clipping happened. Is it purely sensor error? Logs: https://review.px4.io/plot\_app?log=d15bcacd-8f25-45f7-8da1-ae… --- ## [Autotune Failed. LOG. PLS help me](https://discuss.px4.io/t/autotune-failed-log-pls-help-me/40247)
**Author:** [@MBicer](https://discuss.px4.io/u/MBicer)\ **Replies:** 10\ **Last updated:** [August 23, 2024, 12:00pm UTC](https://discuss.px4.io/t/autotune-failed-log-pls-help-me/40247 "2024-08-23T12:00:34Z")
Hello everyone. We made 2 flights for the autotune settings of our 6-rotor (15kg) hexacopter. The flights went well, but we received a Autotune Failed warning 2-3 seconds after pressing autotune button. We couldn’t figur… --- ## [Uncommanded Yaw during Acceleration and Deceleration](https://discuss.px4.io/t/uncommanded-yaw-during-acceleration-and-deceleration/40111)
**Author:** [@bijjs](https://discuss.px4.io/u/bijjs)\ **Replies:** 4\ **Last updated:** [August 13, 2024, 8:21pm UTC](https://discuss.px4.io/t/uncommanded-yaw-during-acceleration-and-deceleration/40111 "2024-08-13T20:21:40Z")
Hello everyone, I have been flying with a 20 kg vehicle with the Octorotor Coaxial airframe (Airframes Reference | PX4 Guide (main)) and having an uncommanded yaw during some acceleration and deceleration. The pitch/rol… --- ## [The plane will automatically move upward when hovering](https://discuss.px4.io/t/the-plane-will-automatically-move-upward-when-hovering/39821)
**Author:** [@wen](https://discuss.px4.io/u/wen)\ **Replies:** 0\ **Last updated:** [July 22, 2024, 10:55am UTC](https://discuss.px4.io/t/the-plane-will-automatically-move-upward-when-hovering/39821 "2024-07-22T10:55:27Z")
I’m using PX4 version 1.14 for my quadcopter UAV. While flying, it tends to ascend automatically during hover, and when I set the throttle to mid-position, it descends on its own. There seems to be an issue with the Z-ax… --- ## [Vehicle not disarming and oscillating on ground](https://discuss.px4.io/t/vehicle-not-disarming-and-oscillating-on-ground/39323)
**Author:** [@AngelAlbeniz](https://discuss.px4.io/u/AngelAlbeniz)\ **Replies:** 2\ **Last updated:** [June 24, 2024, 6:19am UTC](https://discuss.px4.io/t/vehicle-not-disarming-and-oscillating-on-ground/39323 "2024-06-24T06:19:09Z")
The vehicle is a medium sized quadcopter (15 inch propellers) equipped with RTK GPS and a laser rangefinder. I am very happy with its tuning and flight behavior. But the issue comes in the landing. When the vehicle touc… --- ## [Paramotor TECS Oscillation Tuning](https://discuss.px4.io/t/paramotor-tecs-oscillation-tuning/37880)
**Author:** [@junwoo0914](https://discuss.px4.io/u/junwoo0914)\ **Replies:** 1\ **Last updated:** [April 24, 2024, 12:37pm UTC](https://discuss.px4.io/t/paramotor-tecs-oscillation-tuning/37880 "2024-04-24T12:37:06Z")
About A flight was conducted with a Paramotor which has the following characteristics: There’s one main motor There’s two Brake inputs (left and right) via Servo 3. Pitch control is disabled (Pitch setpoint doesn’t ge… --- ## [Help Debugging Auto-Launch Crash Due to Possible TECSControl Pitch Control Issue](https://discuss.px4.io/t/help-debugging-auto-launch-crash-due-to-possible-tecscontrol-pitch-control-issue/36824)
**Author:** [@amarlovesdrones](https://discuss.px4.io/u/amarlovesdrones)\ **Replies:** 2\ **Last updated:** [April 21, 2024, 11:42pm UTC](https://discuss.px4.io/t/help-debugging-auto-launch-crash-due-to-possible-tecscontrol-pitch-control-issue/36824 "2024-04-21T23:42:51Z")
I’m seeking assistance with a crash issue on a fixed-wing plane running v1.14. The plane stalled and crashed during an auto-launch, despite previous successful launches. The incident seems to involve a potential issue wi… --- ## [Octocopter motors wont turn off with reeiver disconnected](https://discuss.px4.io/t/octocopter-motors-wont-turn-off-with-reeiver-disconnected/37288)
**Author:** [@Joshua\_Gordon](https://discuss.px4.io/u/Joshua_Gordon)\ **Replies:** 1\ **Last updated:** [April 21, 2024, 12:00pm UTC](https://discuss.px4.io/t/octocopter-motors-wont-turn-off-with-reeiver-disconnected/37288 "2024-04-21T12:00:58Z")
I recently made an octocopter and when i turn off the radio and disconnect the receiver the motors progressively runs up to full speed instead of staying off. I habe disabled the fail safe on the throttle and so i dont u… --- ## [Rover does not work (does not move) in version 1.14](https://discuss.px4.io/t/rover-does-not-work-does-not-move-in-version-1-14/37066)
**Author:** [@AlbertoJimenezUC3M](https://discuss.px4.io/u/AlbertoJimenezUC3M)\ **Replies:** 1\ **Last updated:** [March 7, 2024, 10:00pm UTC](https://discuss.px4.io/t/rover-does-not-work-does-not-move-in-version-1-14/37066 "2024-03-07T22:00:50Z")
Hi, I am trying to use my rover with the new version 1.14 of PX4, but after a correct configuration, including PWM, the PWM output of the motors does not vary when moving the throttle joystick. I have encountered numero… --- ## [VTOL Airspeed failure and tecs tuning](https://discuss.px4.io/t/vtol-airspeed-failure-and-tecs-tuning/37142)
**Author:** [@Vacoff](https://discuss.px4.io/u/Vacoff)\ **Replies:** 4\ **Last updated:** [March 6, 2024, 6:02am UTC](https://discuss.px4.io/t/vtol-airspeed-failure-and-tecs-tuning/37142 "2024-03-06T06:02:28Z")
Hello I tested a new frame with v1.14. We a warning of airspeed failure, it is not first time, but before we have resolved this by making check it after 1 second to see if it is good to use. But this time it was off fo… --- ## [Same hardware, same MC parameters, but significantly different vibrations in hover - Where does this come from?](https://discuss.px4.io/t/same-hardware-same-mc-parameters-but-significantly-different-vibrations-in-hover-where-does-this-come-from/36485)
**Author:** [@knolle](https://discuss.px4.io/u/knolle)\ **Replies:** 5\ **Last updated:** [February 13, 2024, 7:55pm UTC](https://discuss.px4.io/t/same-hardware-same-mc-parameters-but-significantly-different-vibrations-in-hover-where-does-this-come-from/36485 "2024-02-13T19:55:58Z")
Hello everyone, I recently had to upgrade from firmware version v1.10 to v1.14. I did not make any changes to the hardware (Holybro QAV250, Pixhawk 4 Mini), all the MC-\* PID parameters are equal in both versions. Never… --- ## [Acceleration data not reproducible - Inconsistent data logging in v1.14?](https://discuss.px4.io/t/acceleration-data-not-reproducible-inconsistent-data-logging-in-v1-14/36472)
**Author:** [@knolle](https://discuss.px4.io/u/knolle)\ **Replies:** 4\ **Last updated:** [February 5, 2024, 4:07pm UTC](https://discuss.px4.io/t/acceleration-data-not-reproducible-inconsistent-data-logging-in-v1-14/36472 "2024-02-05T16:07:58Z")
Hello everyone, I have a problem with the reproducibility of the log data, as they do not agree among the flights with my drone (Holybro QAV250, Pixhawk 4 Mini). For me it is very important that the data (especially of … --- ## [Parameter suggestions for my quadx with very unstable flight and high vibration](https://discuss.px4.io/t/parameter-suggestions-for-my-quadx-with-very-unstable-flight-and-high-vibration/36183)
**Author:** [@Berke\_Can\_GOKTAS](https://discuss.px4.io/u/Berke_Can_GOKTAS)\ **Replies:** 6\ **Last updated:** [January 11, 2024, 8:55pm UTC](https://discuss.px4.io/t/parameter-suggestions-for-my-quadx-with-very-unstable-flight-and-high-vibration/36183 "2024-01-11T20:55:30Z")
Hi everyone, I’m testing a new vehicle and it flew awfully in its first flight. I have a few logs each about 15-30 seconds but I couldn’t risk it to fly longer since uav had vibration visible obviously. I then looked a… --- ## [Crash dump on SD card. Vehicle need servicing](https://discuss.px4.io/t/crash-dump-on-sd-card-vehicle-need-servicing/35612)
**Author:** [@riccardo-enr](https://discuss.px4.io/u/riccardo-enr)\ **Replies:** 8\ **Last updated:** [December 28, 2023, 9:39am UTC](https://discuss.px4.io/t/crash-dump-on-sd-card-vehicle-need-servicing/35612 "2023-12-28T09:39:38Z")
Hello everybody, I’m trying to update my Pixhawk 6c drone from v1.13.3 to v1.14, to use the xrce middleware instead of the rtps used previously. I have been following these steps on the upgrade section of the version 1… --- ## [Autotune PID P values seem to high](https://discuss.px4.io/t/autotune-pid-p-values-seem-to-high/35995)
**Author:** [@antonio-sc66](https://discuss.px4.io/u/antonio-sc66)\ **Replies:** 1\ **Last updated:** [December 20, 2023, 9:05pm UTC](https://discuss.px4.io/t/autotune-pid-p-values-seem-to-high/35995 "2023-12-20T21:05:03Z")
Hello, We have been testing a brand new drone with PX4 v1.14.0 and a Holybro 6X autopilot. The drone has a motor to motor distance of 690mm and a total weight of about 3.8kg We first did a basic and fast PID tunning (y… --- ## [Cube O+/PX4 v1.14.0 erroneous pitch/roll setpoint in autonomous mode](https://discuss.px4.io/t/cube-o-px4-v1-14-0-erroneous-pitch-roll-setpoint-in-autonomous-mode/35557)
**Author:** [@C\_G](https://discuss.px4.io/u/C_G)\ **Replies:** 17\ **Last updated:** [December 11, 2023, 12:50pm UTC](https://discuss.px4.io/t/cube-o-px4-v1-14-0-erroneous-pitch-roll-setpoint-in-autonomous-mode/35557 "2023-12-11T12:50:59Z")
First, thank you all for your time. Second, I hope that someone help me with an issue that I’m seeing that has me stumped. I have now recreated this issue on 3 airframes and two Cube Orange+ flight computers. The issue … --- ## [The latest firmware for cube orange issue](https://discuss.px4.io/t/the-latest-firmware-for-cube-orange-issue/35341)
**Author:** [@Ashin\_Dinesh](https://discuss.px4.io/u/Ashin_Dinesh)\ **Replies:** 17\ **Last updated:** [December 5, 2023, 6:44pm UTC](https://discuss.px4.io/t/the-latest-firmware-for-cube-orange-issue/35341 "2023-12-05T18:44:44Z")
So. i tried to upload the latest px4 latest firmware version 1.14 then the g.p.s(Here 3+) started to blink red and also even the values for p.w.m output values are set,there was latency during arming and also expect for… --- ## [Delayed response to RC sticks (Roll/Pitch/Yaw) in Position mode only](https://discuss.px4.io/t/delayed-response-to-rc-sticks-roll-pitch-yaw-in-position-mode-only/35600)
**Author:** [@MuhammadBilal1](https://discuss.px4.io/u/MuhammadBilal1)\ **Replies:** 0\ **Last updated:** [December 1, 2023, 2:09am UTC](https://discuss.px4.io/t/delayed-response-to-rc-sticks-roll-pitch-yaw-in-position-mode-only/35600 "2023-12-01T02:09:27Z")
Hi, Drone Setup: Autopilot: Pixhawk 6C Firmware: PX4 1.14.0 GPS: None Local Positioning Sensor: ARKFlow (connected at CAN port) Range Finder: LIDAR-Lite V3 Today, I just tuned my new drone frame in “Altitude” mode. … [Next page](https://discuss.px4.io/c/flight-testing/v1-14/61.md?page=1)