Opterra EFlite 40A ESC Won't Complete its Power Up Sequence
@rollys wrote: I’m retrofitting an Opterra 2m Flying Wing with an mRo Pixhawk 1 using the Buffalo FX-79 Airframe with v1.8.0Dev firmware. I first calibrated the ESC directly with the Rx to confirm...
View ArticleControlling motors with pixhawk 4
@Gabe_Skidmore wrote: I built a small airplane and I need to control it with a Pixhawk 4.Can someone point me in the right direction on how to use servo motors with the Pixhawk 4 and QGroundControl....
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PX4 on a Un-Powered Glider?
@rctestflight wrote: Hello All! I built a super simple delta glider to answer a question I had: Will PX4 be able to preform RTH with a non powered glider when dropped from altitude? So far I’ve done...
View ArticleFixed wing auto-landing brainstorm
@Antiheavy wrote: I thought it would be interesting to see people’s ideas about fixed wing auto-landing, how it could be made better than it currently is in PX4, and other ideas, practical or wild,...
View ArticlePixhawk 4 Mini - No PWM Outputs
@supersocks wrote: I’m trying to configure a standard airplane with a Pixhawk 4 mini flight controller. I think I configured everything correctly and can arm the aircraft, but I’m not getting any PWM...
View ArticleReturn to launch for high power rockets
@robiw1 wrote: I am just getting into the design for a return to launch system for use on high power rockets. The goal is to bring the machine back into the general area of the launch site in order to...
View ArticleLateral/directional stability and control using differential thrust
@JuanJoseGonzalezDiaz wrote: Hello everybody! I have a personal project that consists on designing an autopilot for stability and control of an experimental fixed-wing aircraft with no vertical tail....
View ArticleLidar installation 'angle'?
@1Gump wrote: installing a V3HP in plane for 1st time, wondering about concerns for the plane pitch during landing approach-to-touchdown. should i mount the lidar pointing straight down or a littl fwd...
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Understanding Fixed Wing Tuning and Flight Log Review
@rollys wrote: Build specs: Opterra 2m (stock) with 3S 8000mah Pixhawk 2.4.8 v5 Bootloader Firmware: v1.8.0dev Airframe: FX-79 Buffalo Flying Wing Flight Log Review Brief YouTube Video from BitEye...
View ArticleReverse gyro behavior in stabilize mode - ails and elev go wrong way
@1Gump wrote: setup: px4 1.8.2 stable QGC 3.5.0 pixhack v5 installed 180deg yaw gps installed 180deg yaw normal plane AETR qgroundcontrol sensors calibrated at 180yaw rotation. artificial horizon...
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Offboard Control with mavros
@ticua wrote: hi there i have a question… - hope someone can help me. my goal is to start a flying wing manually, fly around for a bit, switch to the offboardmode (via rc) and and then my wing should...
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How to storage lipo batteries?
@Jashon wrote: Compared to the NiCd and NiMH, Lipo batteries are commonly used in the industry of radio control models on account of the higher performance, efficiency, friendly environment and so on....
View ArticleCan a plane fly in assist mode or auto mode without airspeed sensor?
@wylng wrote: Assist mode includes altitude mode, position mode My plane have no airspeed sensor, the push motor only work in manual/stabilze mode. When i switch to altitude mode, the push motor...
View ArticleTailDragger! lets talk TO/Landing setup
@1Gump wrote: currently in trying to establish a dependable setup/config for a trike gear (nosewheel) plane: takes of perfectly; landing a bit unpredictable yet. HOWEVER, the plan is to transfer to a...
View ArticleDuel battery circuit isolation
@jbero wrote: I have the pixhawk 4 mini mounted in a large wing (X-8). I have built in a power redundancy with two isolated circuits. Circuit 1 is dedicated to the 4s 3500 40c mah ESC for the motor. I...
View ArticleRunway takeoff: initial right rudder causing veer off course
@1Gump wrote: what am i doing wrong (if anything)?.. … this seems to be a persistent problem, except when it isn’t. ;>/ . (runway takeoff) the plane seems to get a right-rudder immediately when...
View ArticleHow to use the "FW_W..." parameters?
@1Gump wrote: how are these parameters for “wheel steering” on a fixed wing supposed to work? do they have a specific PWM output? do they affect the rudder on a runway takeoff? do they guide the plane...
View ArticleFixed wing plane pitch issue and doesn't land
@Damiano_Maeder wrote: Hi guys, I have a problem with my twin motor airplane. The airframe is a Believer FPV with V tail and I used the Applied Aeronautic Albatross as template for the correct mix and...
View ArticleAirspeed calibration time seems annoyingly long
@Antiheavy wrote: Does anyone else think the airspeed calibration time is way too long? It seems the calibration is taking an average of 2400 samples. I realize many of the airspeed sensors used in...
View ArticleDoubt about Fixedwing PID Tuning Guide?
@wylng wrote: I have read the guide, I am not clear about the steps. https://docs.px4.io/v1.9.0/en/config_fw/pid_tuning_guide_fixedwing.html#establishing-the-airframe-baseline " Gains to tune FW_RR_FF...
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