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Author Topic: Really fancy a 3 or 4 incher..  (Read 179 times)

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Offline sh0wtime

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Really fancy a 3 or 4 incher..
« on: September 12, 2017, 10:22:19 »
Hi guys.
as i already have 3 5 inch quads i'm really temped (mainly by the cuteness factor) to build a 3 or 4 inch quad.
i've read in a couple of threads that they can be a tad heavy & unresponsive though due to using similar parts to a 5 inch buld but just smaller props with less thrust.  :shrug:

i guess that would make sense though, basically the same but with shorter arms & less thrust  :hmm:

i'd like something pretty lively tbh.

any recomendations? i quite like the look of the Japalura & Leopards but if something without the alloy would be night & day different & happy to be steered in that direction  ~~


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Offline hoverfly

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Re: Really fancy a 3 or 4 incher..
« Reply #1 on: September 12, 2017, 13:29:29 »
Hells bells i woulden't chop 4 ins of mine for anything...... ::) (old ones are the best and someone had to do it) :rolleyes:
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Offline Saleem

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Re: Really fancy a 3 or 4 incher..
« Reply #2 on: September 12, 2017, 13:32:59 »
I fly 150,diatone lizard,spadger,i have a lantian 130 and have just built a 145 geprc sparrow although i got to maiden it yet.all running 3" and different motors,racestar 1407,tornado 1407 and emax 1306,they all run realy fast on dinogy 800 4s.this latest build,geprc sparrow i have fitted tornado 1608,it will run dys 3030 tris!

I build a geprc leopard,195,its got red bottom 2205 and can only run 4" but on some tarot its slow.i dont know if its judt the batteries are tired but i got to try different props or something,maybe batterys need replacing,lots of trouble shooting on that frame.

So if you got any doubts with a small 150ish 3" dont!

If you use a aio fc and good motors they are fast as hell! Take it from someone who runs small 3" set ups.
 :smiley:

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Offline Slobberdog57

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Re: Really fancy a 3 or 4 incher..
« Reply #3 on: September 12, 2017, 13:42:48 »
I'm running a 160mm 4" with 1407 brotherhobby 3600kv spedix 20a, BFf3 Runcam mini and vtx03 and tj4045x3 props

and its rapid, has quicker climb out than my 5" builds and can do 4mins on an 850 4s,

3" I run a 120mm frame with xrotor 1105b 6500kv motors, 6a bullet esc's piko blx clone Runcam micro and vtx03 using gemfan 3025 t style props, powered by a 500mah 2s, and at just over 100g in weight its a great flyer, that you can chuck in the air anywhere and cover good ground quick.

tech has moved on so much lately that light small builds are the way to go,

even my 2" on 1103 can haul ass, and give me a big grin.
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Offline Hozza

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Re: Really fancy a 3 or 4 incher..
« Reply #4 on: September 12, 2017, 14:11:52 »
Have a read of this post by Cheredanine http://www.multi-rotor.co.uk/index.php?topic=22014.0

I've built almost a carbon copy and it's fantastic, I also had a Japalura 3inch which was about 65g heavier but can't give a real comparison as it only lasted 2 lipos :-/

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Offline sh0wtime

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Re: Really fancy a 3 or 4 incher..
« Reply #5 on: September 12, 2017, 15:15:31 »
Have a read of this post by Cheredanine http://www.multi-rotor.co.uk/index.php?topic=22014.0

I've built almost a carbon copy and it's fantastic, I also had a Japalura 3inch which was about 65g heavier but can't give a real comparison as it only lasted 2 lipos :-/

wow 65g! thats quite a bit on something light.

maybe i need to be looking at the all carbon frames  :azn
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Offline Cheredanine

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Re: Really fancy a 3 or 4 incher..
« Reply #6 on: September 12, 2017, 16:14:52 »
As per Hozza, the second air ro build I did he linked to is outstanding.

I usually take two quads to the field in case of problems, on two seperate occasions I have taken that quad and good 5 inch racer (for reference my scx200 redback and recent shrike build).
On both occasions I preferred the air-ro,
It is somewhere between the two on top end but it's agility is massively better, it changes direction on a dime, when you switch back and forth between it and one of the 5 inch quads, the 5 inch feel like a bus in a corner.

It is just hands down the best quad to fly I have.

For more tame flying it takes 3s very well, in fact I happily fly acro on 3s quite often, honestly can't recomend it enough

Offline sh0wtime

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Re: Really fancy a 3 or 4 incher..
« Reply #7 on: September 12, 2017, 16:30:08 »
Sounds like it's a go then, definitely worth adding to my small but growing collection.

i have an SCX to build (redback) here that i might put on hold for a littlun  :cool:
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Online Bajadre

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Re: Really fancy a 3 or 4 incher..
« Reply #8 on: September 12, 2017, 18:58:59 »
go for it matey  ~~ bought a 4" not long ago a lot faster and twitchy than my docile 5" 280mm.
tried 4s on it bit too fast for me atm lol  :laugh:
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Offline sh0wtime

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Re: Really fancy a 3 or 4 incher..
« Reply #9 on: September 13, 2017, 01:54:58 »
Have a read of this post by Cheredanine http://www.multi-rotor.co.uk/index.php?topic=22014.0

I've built almost a carbon copy and it's fantastic, I also had a Japalura 3inch which was about 65g heavier but can't give a real comparison as it only lasted 2 lipos :-/

looks like there might be another one of these being built very shortly  :whistling:
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