Aftermarket servos on V120D02S

[jeblesh]

well for the longest flight time efficiency is on the table
haven't been thinking of that alot TBH ,
but if we talking sport stile flaying
most brushless motor's normally max efficiency at 60% to 80%
so u need about 35W for a 120-130g bird running around 5000rpm head speed
for sport stile flaying witch means u need 45-55W motor

so theoretical Watt of thees motors is
hp05 12000kv on 2s is 37W
hp06 8200kv 2s is 51W
spin 8000kv 2s is 55W
spin 8800kv 2s is 64W
hp08 8000kv 2s is 74W
hp10 7800kv 2s is 88W

they shod b about 90% efficiency so ideally u need 55W motor more or less
now the batt's low C light and high capacity 40-45g grams should b good
and keep u under 130g hers my 10 sec search for one
http://www.hobbyking.com/hobbyking/s...Lipo_Pack.html
http://www.hobbyking.com/hobbyking/s...Lipo_Pack.html
http://www.hobbyking.com/hobbyking/s...1P_15_25C.html
shod giv u about 6.5-7 minuets of aggressive flaying
or 10.5-11 minuets of hovers and slow flight

thees ofc all considering it's theoretical not from my experience
i didn't tray to fine tune it for max flight time's , 5 min is enough for me
so i use 500mph lypos and my bird is lighter bay about 10-15g ...

[10inja]

thanks for the info, so spin 8000kv is ideal for longest flight time. that thing is cheaper too.
and for what I do, it would be plenty of power.

[helikido]

Originally Posted by jeblesh

well i googled abit for gears and i found them for 5$ with the servo price at 7$
seems selly to buy thes

well 2S is a bit more fat (118gr vs 1s 97gr)
and i feel it but with my Hyperion 35C 500mph lipos spin 8800kv motor and xp12a esc
there's no bogging no matter wot u throw at it i
it depend's haw u flay 1S cant do smak properly
u spend more time recovering RPM then doing maneuvers but for sport flaying
it's all ull need no point to upgrade to 2s

i like my 130X better then my v120 for now , one reason , the gyro is better in my aye's
i hate the 130X tail , there's always problems with it
it's tail shaft is bad quality install a brand new one and still get vibrations
the control horns got issues 2

now my 130X got v120 tail and super fast servo and it's cool
none of thees birds r grate out of the box
v120 got better mechanics and will flay reliably
the 130x got better electronics and power but send u to maintenance work really often
the 2 stage gears in the tail r just ultra stupid

ATM am waiting for tarot ZYX-S 3-Axis Flybarless System in mail from china
it well probably b better then the 130X gyro so best mechanics from v120d02s
and best electronics from a big heli 3G with all the good stuff lake pyro compensation in it
will c if it works (:

No way in hell you be able to fit that gyro in the heli. I own both. Its not mean for micros.

[jeblesh]

that's funny , i just finished fitting it to the helli
i needed to strip it out of the plastic's it's only 4.5g without them
but didn't need to do any modifications to the Helli Chase

also fitted 4 ds35 servos they seem much faster then my old blue errow or original ones
tomorrow ill test fly it and tray to set it up properly well c haw it goes ...
weight isn't that bad he used to b 86gr w,o batt and now it's 95 so it's promising
ill Post a full review on the mod in a few day's and ill actually know haw better if Any the bird is ...

[10inja]

wow jeblesh, pretty cool stuff.
yes, a review would be nice, make a video of the whole thing showing all the mods and the servos and the tarrot and maybe a video of it flying or even just hovering. that would be awesome.

[Jeff_Barrett]

Do a search in this forum. Ampdraw tested many, the new blue arrow servos at the time were the only ones that fit and worked reasonably well. Mind your voltages.... walkera has odd specs...

Sent from my SGH-I747M using Tapatalk 2

[helikido]

@jabesh what the hell bro? How did you manage that?? Post how you did it asap lol!

[jeblesh]

made a new thred on that build
http://www.helifreak.com/showthread.php?t=486675
abit 2 erly to giv a proper revew so b pashent for the finel revew befor u buy the part's (: