HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old May 23, 2012, 12:16 PM
Registered User
Israel, Adi
Joined May 2006
115 Posts
Guys thanks a lot for your help i will finish my order ... finaly thanks
guytzoler is offline Find More Posts by guytzoler
Reply With Quote
Sign up now
to remove ads between posts
Old May 23, 2012, 12:57 PM
Registered User
Joined Aug 2011
145 Posts
A few weeks ago, I asked a RC model webshop owner for advice which servos to use for the X8 and he recommended and sold me these:

Robbe S3001

Are they good enough for the X8? I was planning on using them but seeing people in this thread are recommending 4.5kg+ I don't think these are good enough after all... All I can find on internet about these S3001's is that they are 45grams, 2.4kg @ 4.8v and 3kg @ 6v and size is 40,4x19,8x36mm. I'm not very experienced at modelbuilding. Should I return these servos?

If I swap them for stronger servos, should I keep this size or do they also need to be bigger or smaller? Thanks!
King Haggis is offline Find More Posts by King Haggis
Reply With Quote
Old May 23, 2012, 01:36 PM
Sorry-I am from Denmark !!
Niels Erik's Avatar
Danmark, Lolland, Søllested
Joined Nov 2010
85 Posts
Quote:
Originally Posted by King Haggis View Post
A few weeks ago, I asked a RC model webshop owner for advice which servos to use for the X8 and he recommended and sold me these:

Robbe S3001

Are they good enough for the X8? I was planning on using them but seeing people in this thread are recommending 4.5kg+ I don't think these are good enough after all... All I can find on internet about these S3001's is that they are 45grams, 2.4kg @ 4.8v and 3kg @ 6v and size is 40,4x19,8x36mm. I'm not very experienced at modelbuilding. Should I return these servos?

If I swap them for stronger servos, should I keep this size or do they also need to be bigger or smaller? Thanks!
Regards what people write, i do fly with these:
http://www.hobbyking.com/hobbyking/s...dProduct=14458

And iam not falling out of the sky Only trouble so far was a pushrod falling of-And i landed with a flatspin The servo gives me the power i need-But iam not flying fast at all-Max 80 kph
Niels Erik is offline Find More Posts by Niels Erik
Reply With Quote
Old May 23, 2012, 02:11 PM
Registered User
Austria, Wien, Vienna
Joined Feb 2012
305 Posts
Quote:
Originally Posted by King Haggis View Post
A few weeks ago, I asked a RC model webshop owner for advice which servos to use for the X8 and he recommended and sold me these:

Robbe S3001

Are they good enough for the X8? I was planning on using them but seeing people in this thread are recommending 4.5kg+ I don't think these are good enough after all... All I can find on internet about these S3001's is that they are 45grams, 2.4kg @ 4.8v and 3kg @ 6v and size is 40,4x19,8x36mm. I'm not very experienced at modelbuilding. Should I return these servos?

If I swap them for stronger servos, should I keep this size or do they also need to be bigger or smaller? Thanks!
NO!
they are standard servos and slow !
buy digital servos, metal gear, min. 2 ballbearings, <0.2sec, 4-5kg+

http://www.hobbyking.com/hobbyking/s...dproduct=19810
jet72 is offline Find More Posts by jet72
Reply With Quote
Old May 23, 2012, 02:32 PM
Praying for better weather
Coyote64's Avatar
Joined Dec 2007
4,147 Posts
Just before I maiden mine I thought I had better watt test my motor prop, I was surprised, according to eCalc I had the best config to get max ( 670 watts ) from my motor

Motor : Turnigy SK 3542 100KV
Prop : 11x6 ( as recommended by eCalc )
Watts : 528

Over 100 watts down on eCalc prediction and my hopes

I tried a few others

Prop : 14x8
Watts : 850w @ 62 Amps

That`s more like it, but way too high for my 670w motor

Prop : 12x8.5
Watts : 622w

Better but a bit more would be nice

I`m thinking 13x7 should give me a bit more ?

Waiting on the Power Up 32 with 800 watts, but I ordered it weeks ago and no show so far
Coyote64 is online now Find More Posts by Coyote64
Reply With Quote
Old May 23, 2012, 02:54 PM
Registered User
BushmanLA's Avatar
Joined Dec 2005
1,817 Posts
Meh, you should be able to launch pretty easy with 500 Watts.
BushmanLA is offline Find More Posts by BushmanLA
Reply With Quote
Old May 23, 2012, 02:57 PM
What goes up, must come down
crazy1pilot's Avatar
United States, MI, Midland
Joined Sep 2009
704 Posts
I would go with the

Prop: 12x8.5
Watts: 622

No need to over work the motor, as it is now, the X8 has a hard time keeping the motor cool.

Crazy1
crazy1pilot is offline Find More Posts by crazy1pilot
Reply With Quote
Old May 23, 2012, 03:26 PM
DS state of origin NSW Vs QLD
Forrest12's Avatar
Joined Jul 2009
1,371 Posts
Right guys
Im going to try and save everyone some money here.

If you want the most efficient 4S set up here it is.

Ive tested 6 types of 3542 motors ranging from 500kv up to 1100kv and by far this has the best power to economy ratio.

http://www.hobbyking.com/hobbyking/s...ner_830KV.html

running a 13 X 6.5 folding aeronaught prop. 42mm prop center.

Im running a 100amp speedie to be safe but 80amps would be plenty. As at max throttle it pulled 48amps

This set up will launch up 24000mah of 4S and also have a cruise of 8-9 amps with 8000 mah of batteries on board. Approx 40 mins flight time

Ive bought from this motor up to Tiger motors and then up to scorpion motors in this test. So ive spent quite alot of money . Dont try and re invent the wheel this works. Its your decision if you take the advice or not. Motor runs cool even at full throttle bench tests. Speedie also ran just warm on the bench.

Pete
Forrest12 is offline Find More Posts by Forrest12
Last edited by Forrest12; May 23, 2012 at 03:43 PM. Reason: Canged it for Ian :P
Reply With Quote
Old May 23, 2012, 03:39 PM
Registered User
Old Blighty
Joined Apr 2010
1,687 Posts
When you say economical, do you mean efficient?
Ian Davidson is offline Find More Posts by Ian Davidson
Reply With Quote
Old May 23, 2012, 03:42 PM
DS state of origin NSW Vs QLD
Forrest12's Avatar
Joined Jul 2009
1,371 Posts
Quote:
Originally Posted by Ian Davidson View Post
When you say economical, do you mean efficient?
yes
Forrest12 is offline Find More Posts by Forrest12
Reply With Quote
Old May 23, 2012, 03:55 PM
Registered User
Old Blighty
Joined Apr 2010
1,687 Posts
Would love for you to try your 830kv motor on 3S with a 14x10 prop and report back. My feeling is it would offer very compatible performance, but be even more efficient still.
Ian Davidson is offline Find More Posts by Ian Davidson
Reply With Quote
Old May 23, 2012, 04:04 PM
DS state of origin NSW Vs QLD
Forrest12's Avatar
Joined Jul 2009
1,371 Posts
Quote:
Originally Posted by Ian Davidson View Post
Would love for you to try your 830kv motor on 3S with a 14x10 prop and report back. My feeling is it would offer very compatible performance, but be even more efficient still.
Maybe

Ian , My post was simply to help people out with an "efficient" start. Ive spent over $500 on motors on this bird and thats alot of money to have a bunch of spare motors that I may not use again. There was no useable motor info when i got my first X8 in February.
This motor truely is amazing for the price. Quiet, tight, smooth, efficient, cheap! It ticked all the boxes.
Forrest12 is offline Find More Posts by Forrest12
Reply With Quote
Old May 23, 2012, 04:07 PM
Registered User
Old Blighty
Joined Apr 2010
1,687 Posts
Quote:
Originally Posted by Forrest12 View Post
Maybe

Ian , My post was simply to help people out with an "efficient" start. Ive spent over $500 on motors on this bird and thats alot of money to have a bunch of spare motors that I may not use again. There was no useable motor info when i got my first X8 in February.
This motor truely is amazing for the price. Quiet, tight, smooth, efficient, cheap! It ticked all the boxes.
Indeed - I agree! I think it sounds like a great X8 motor, for 3S or 4S. I appreciate you having gone to all the effort (and cost) to find it.
Ian Davidson is offline Find More Posts by Ian Davidson
Reply With Quote
Old May 23, 2012, 05:07 PM
Registered User
Joined Feb 2007
92 Posts
Im planing on using Rimfire .32 42-50-800, a little on the heavy side 198grms, with a 13x8.
Maybe a 14x9 for 587watts for a static thrust of 3331. grms. This is well in range of the max watts for this motor 1480. I feel this will give a nice launch thrust and a very efficient cruise.

Please let me know what you all think!

Felipe
Flying Tivo is offline Find More Posts by Flying Tivo
Reply With Quote
Old May 23, 2012, 05:09 PM
Registered User
Daemon's Avatar
Lakewood, Colorado
Joined Aug 2002
28,479 Posts
Quote:
Originally Posted by Ian Davidson View Post
Indeed - I agree! I think it sounds like a great X8 motor, for 3S or 4S. I appreciate you having gone to all the effort (and cost) to find it.
While it sounds like a good deal for 4S, I think it's too low kv for 3S.

ian
Daemon is online now Find More Posts by Daemon
RCG Plus Member
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
New Product X8---new 2.4GHz Radio System ASSAN Radios 5708 Jun 25, 2014 01:20 PM
For Sale Assan 2.4 ghz X8 6ch receiver Brand New Scooter33 Aircraft - General - Radio Equipment (FS/W) 2 Oct 12, 2011 09:34 AM
Discussion Any info regarding this x8 setup?Better than coax x8? sjak Multirotor Talk 11 Aug 14, 2011 08:33 AM
Sold New Assan Module X8 2.4 for JR Tx norstaroption Aircraft - General - Radio Equipment (FS/W) 6 Nov 21, 2009 05:42 AM
Sold New - 4 (Four) ASSAN X8 R6 6Ch 2.4GHz Receivers - $105 EyeFlyPlanes Aircraft - General - Radio Equipment (FS/W) 0 Oct 20, 2008 02:39 AM