That’s life… VTOLs becoming commodity but off course they cost more. Hopefully from tomorrow quarantine will loose a bit, and I will be able to check server and labs.
I will upload some photos and log screenshots with current draw. Vs different props
Yes please share performance of your 10kg Vtol. I am interested to know. Regarding the 7S Lion battery problem, I think I can solve using 6S Hobbywing Xrotor pro ESC. But I need to use also high discharge Lipo, while the 7S Lion will charge the 6S Lipo using special design circuit using high current Mosfet… By the way, your website Ucandrone.com does Not work anymore. Please check it…
Regards…
Finally server is back and iam back to the lab. offcourse social media can save the day
Heres a plot of batt 1 (VTOL) and Batt 2 (FW) currents using 2 x 16Ah 6S in parallel VS Groundspeed.
A photo of the bird nnd the dronelab at the backround:
And a YT Video from this flight with transition and landing:
Wow very impressive, what is wingspan? AUW ? Endurance?
Very nice…is this the $8,000 frame kit sold by someone in China. The frame looks familiar to me.
ok I found it
http://www.dronefromchina.com/product/Baby-shark-VTOL-250-Fixed-wing-KIT-air-frame.html
https://www.amazon.com/Endurance-gasoline-Surveillance-Mapping-Gasoline/dp/B07WX1GDBQ
hi again
I am choosing battery and I need about 2.5kg thrust in cruise mode,
but it seems that the thrust and current is very high and I need a huge battery.
can anyone help me please?
What ESC and Motor are using again? I mean you can’t exceed what your ESC and motors Volt and current specs are anyway, so I am confused why are you struggling with this battery selection?
The only controlling factor once you decide on ESC and motors is the “C” rating of the battery to control constant max current draw from the battery at any given time.
Please post links to the specs of your motors and ESC and I can help you with what the max C rating and max volt and current draw your power design can handle. However, the specs of the motors will restrict the max thrust you can get.
Unfortunately, if you selected the wrong motors and ESC you are stuck and you will have to go back to the drawing board to redesign the whole power system.
this is the motor
http://shop.dualsky.com/eco4130c-v2-series-brushless-outrunners_p0283.html
and this is the ESC
http://shop.dualsky.com/xc8018ba-v2-esc-80a-2-6s-lipo-for-plane-amp-heli_p0114.html
for a 10 kg VTOL UAV, what throttle (in %) you think I’ll need with that motor?
I will check it tonight.
Read this article aircraft weight to thrust ratio
aircraft weight to thrust ratio formula
And you are using this plane?
http://www.dronefromchina.com/product/Baby-shark-VTOL-250-Fixed-wing-KIT-air-frame.html
If not show me your plane type and specs…
Thanks
No, I am building a new airframe.
It is supposed to have a 3m wing and about 90 minutes endurance.
Hmm…if its a custom frame there are so many unknowns that there is no simple answer to your question.
I would be reluctant to give you an answer not knowing 100 other things about your plane design.
I would suggest you to go this web site and read the 10 part lesson and then draw your own calculations.
They also have calculators.
Not sure if this will help you or not.
the recommended push motor for baby Shark 2500MM VTOL is highlighted below.
they are using two batteries. I am guessing one for electronics and one for motors.
The wingspan is similar to yours. numbers are in mm
do the math…
here is the manual… https://www.manualslib.com/manual/1620890/Foxtech-Baby-Shark-260-Vtol.html