i tried to get a route outbof ecalc but on the version without licence i cant get even a close settup  

someone willing to help me out :-) would be very nice :-)

i like to know the flighttime of a micro:


4rotors
wingspan is 120mm
its 36g
brotherhobby 1103 8000kv
1-2s 5amp 4in1, 6a burst
gemfan 3018 biblades

i like to use a 1500mah 2s (80c - 100g) 
i would like to know how sony vtc 2s would work in comparison

i already flew it on 2s liion, some samsung to low c-rate ones. i got 15min flighttime but the liion recovered to 3,7v after landing..


thanks in advance for any help

Did someone say eCalc?

I can't find any data for the BH 1103 8000Kv, so I used the Xing Nano X1103 8000Kv. I could also use the T-Motor F1103-8000, but they're a few grams heavier than the Xing's so I figured those would be a better approximation.

First, here are the eCalc numbers for the 100g 2S 1500mAh LiPo:

   

   

And with a 2S Sony VTC6 pack:

   

   


Let me know if you want me to try a different motor or change any parameters. 

https://www.ecalc.ch/xcoptercalc.php?eca...oject=hugs

awesome, thank you very much v-22 :-)

the results looks promising :-)

hey v22
i tested it a few times on 1500mah 2s, i got 15min flighttime from my sort of flight. that was about 10k total flightdistance and i did good 2k flightdistance on it. xD much funny experience xD
i thought i might push that little thing to the limit and will loose it, but there came love xD
i would need a good spot to get confortable to extend the flightdistance - or i would need to add a gps and bzzer, maybe some video gear improvements like a helical. i will do a try on liion for sure :-)
such a funny quad, very silent and so tiny - range does make make a lot fun on that size.

Wow, that's great! Good to see the eCalc numbers are still fairly conservative (or the BH motors are very efficient ).

What FC? If you have the UARTs for a GPS that would be great to have!

Looking forward to your Li-ion testing! GetFPV has the VTC6 in stock, although they are about 50% more than the last time I bought them: https://www.getfpv.com/sony-vtc6-18650-3...-2pcs.html

https://intofpv.com/t-gps-tx-rx
its a happymodel f405 from the super_s stack. there are no spare pads for a full uart, i would need to solder it directly to the mcu.

i have a lightweight gps from my gopro hero6, form factor is bad, it would give a lot more surface

i saw two small fullspeedrc/namelessrc gps in my buddies box, they would be more lightweight and give less surface - not sure how good they truly work oscars review doesnt look bad about it.
i might ask him for one to give it a try.

(the only true downside on it is ability to fight against wind :-) i didnt care enough on my latest flight, i thought its sideway wind, i had a much longer way back home :-)

im in europe, funny thing the best availability and on low price sony vtc6 is where they sell e-cigarettes :-) i should buy them soon.


edit: the brotherhobby seems one of the best about power and efficiency according to that test, sadly its a bit a different rotorcombination. data is rare
there is more than one vid about it:

i discovered another issue about gps and the buzzer from fulspeedrc.
i get into trouble on the 5v regulater when i reached low voltage, there is just an 0.5a output. i have less clean video, but nice the unify nano pro32 can handle up to 13v :-)

http://www.fullspeedrc.com/luckyboxbuzzer_p0174.html
http://www.fullspeedrc.com/nlrcgps_p0245.html

they would be +5.3g from the description, more than 10% of the buildweight
runcam nano4, crsd nanorx are on the 5v circuit, additional gps and batterysupported buzzer might be to much for 0.5v regulator