Not sure about INS_ENABLE_MASK. It has something to do with the Inertial Sensor (INS) backends. I see it set to 2 or 3 for Pixhawk 1 boards. For a Pixhawk 2, I have seen it set to 7.
yes, thatās the next thing i want to askā¦ some value is 3, other is 7 and mine is 2ā¦
today i test my nimbus again, with full charge battery 2x 5000mah 24v 6sā¦ and it fly around 30 minutes with only 1 time takeoff and 1 time landingā¦
after landing the current is 20v, is this efficient or not? and what is the biggest mah does this nimbus possibly can carry? 16000 or 22000mah? what is the minimum C rate for it 10C 25C or else?
Personally, Iām more concerned with mAh consumption rather than voltage. How many mAh did you recharge back in? Take the total amount then divide it by the flight time (30 min) which will give you your per minute consumption.
Good luck.
each battery is around 4700 mah, so total is around 9400 mah / 30 minute is around 313mah/menuteā¦ what do u thinkā¦?
20V is too low, you should be at least 21.6V after landing.
yes, is a little bit over limitā¦ can u share what battery u use and how long itās flyā¦
We use either 10000mAh 6S 20C Tattu LiPo for 40 minutes flying or 10500mAh 6S Titan LiIon + 2200mAh 6S 45C GensAce packs for 75 minutes.
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Hi GregCovey
Iābeen testing the transitions, and all work well, but when finish the transition qhover to fwa in mode plain, the front motors work irregularly like you can see and listen in video.Do you have any idea what happened?
Thank youā¦
Best Regards
Hi Anibal Manuel,
I cannot tell from the video what is causing your issue. Can you post a log? Do you have the AS sensor enabled? Do you have Q_ASSIST_SPEED set to 0 for initial flights?
Cheers!
Hi Again
I donāt have any AS, and Q assist Speed is 0
Here is this Fight log
00000003.BINThank you
Cheers
itās look like u donāt have enough air speed to transform from quad to planeā¦
check your airspeedā¦ my nimbus transition speed is 11(ARSPD_FWB_MIN : 11), bellow that number your nimbus will difficult to control because itās transition modeā¦ just go forward until u get the enough speed and your plane will be good againā¦
i think u have to put the airspeed sensor, itās difficult to depend it only to the ground speed onlyā¦ your plane will stall if u donāt have enough air speedā¦
Full disclosure, Iām a PX4 user, not ArduPlane as @GregCovey knows. Iām hoping to just invoke a thought process that you may look for in the params to rectify your issue.
In PX4, assuming youāve made tests with an airspeed sensor or know what throttle settings will guarantee the aircraft to not stall during different flight profiles, e.g. xx% at cruise; xx% during climb; xx% during descent, etc. There are params that you can do the following:
- What throttle setting to ramp up/ advance to during transition, i.e. throttle percentage.
- How many seconds to stay in the above-stated condition before fully transitioning to FW mode. In a quadplane, Iāve seen this set at 8 seconds. The determination of time based on tests to know that it has achieved flying speed. Transition is based on time assumed that it has reached the speed when the wings are aerodynamically effective to fly.
Good luck.
HI Musa Wilmar
Thank you for your information. It is possible you send me your parameters, to compare with mine.
thank you
Best Regards
Hi Anibal Manuel,
Iāv been a bit busy so I will try to analyze your logs this weekend. We have posted many working .param files above so just look back for .param attachments.
Cheers!
P.S. The snow is finally melting!
@GregCovey, @Graham_Dyer, @rollys, @Aticof i have this questionā¦ if i create flight plan on mission planer, do i have to put DO_CHANGE_SPEED to increase speed to above stall manually or it will automatically adjust speed above stall?
TRIM _ARSP_CM is the speed in AUTO , it is the CRUISE mode speed
so basically if i want more speed in auto mode, i just change the TRIM _ARSP_CMā¦
and what your TRIM_ARSPD_CM valueā¦? mine is 1200 cm/sā¦