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Old Aug 05, 2012, 05:31 AM
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Australia
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Quote:
Originally Posted by Lejna View Post
Hi all

I want to buy my first jet plane

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

and I need help to completing he 4S setup

motor - http://www.hobbyking.com/hobbyking/s..._for_64mm.html or better 3800KV or some other ??

EDF Ducted Fan Unit 7Blade 2.5inch 64mm - http://www.hobbyking.com/hobbyking/s...inch_64mm.html

ESC - http://www.hobbyking.com/hobbyking/s...k_70A_ESC.html this ?? or some other ??

which servo and battery will be good ??

Thx for a help
If you want to keep it simple I just used one of these combo kits below-

Link- http://www.hobbyking.com/hobbyking/s...v_45A_ESC.html

along with a 4s 2200mah 30-40c lipo

most 9g servo's will do the trick. If you want to go in real cheap - http://www.hobbyking.com/hobbyking/s...?idProduct=662

I've been using this setup for a while without any probs. Its no rocket ship, but plenty fast enough for a new EDF pilot.

Mick
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Old Aug 05, 2012, 06:03 AM
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I dont want this combo but thanks for a help

I will better ESC and please help me which motor will be better
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Last edited by Lejna; Aug 05, 2012 at 03:01 PM.
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Old Aug 05, 2012, 07:10 PM
Gravity sucks.
Australia, QLD, Toowoomba
Joined Mar 2011
557 Posts
Quote:
Originally Posted by Lejna View Post
I dont want this combo but thanks for a help

I will better ESC and please help me which motor will be better
if you want cheap, reliable -this 68mm fan will require some foam removal, or mount it forward of the stock location to fit. the real beauty of this system will allow you to run 3s 2650 with good thrust and very reasonable flight duration (due to weight savings on using 3cells;
http://www.hobbyking.com/hobbyking/s...idProduct=8835

expensive, but reliable:
http://www.hobbyking.com/hobbyking/s...dProduct=17220

you'll need 40c + ratings to run this fan designed for 4 cells - great thrust!

with either, this has been the ESC i've been using;
http://www.hobbyking.com/hobbyking/s...dProduct=12189
Rock solid. (but heavy)

just remember, extend the 3 motor leads, not the battery leads (unless you would rather have to additionally solder in clusters of low ESR capacitors on the battery lead side.) Otherwise you will eventually kill your ESC capacitors ... (i found this after about 15 flights...)

RE: EDF Ducted Fan Unit 7Blade 2.5inch 64mm - http://www.hobbyking.com/hobbyking/s...inch_64mm.html
I bought two of these and found them to be too agressive in pitch...maybe using a higher cell count and lower KV motor (like 6s and 2100kv or something?) might work.
if you want to stay in 3 and 4 cell territory, i'd recommend staying away from those 7 blade rotors.
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Last edited by m_ark; Aug 05, 2012 at 07:16 PM.
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Old Aug 05, 2012, 09:30 PM
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Joined May 2010
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I want to ask anyone here if they ever flew an HK,s F-22? and if it is approx same skill needed to fly this T-45...i have a smaller 50mm F9F coming this week which will be my first EDF and like the t-45 and the f-22 both... just want to know which one would be the next best model for me to learn with...thanks
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Old Aug 06, 2012, 01:55 AM
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Quote:
Originally Posted by m_ark View Post
if you want cheap, reliable -this 68mm fan will require some foam removal, or mount it forward of the stock location to fit. the real beauty of this system will allow you to run 3s 2650 with good thrust and very reasonable flight duration (due to weight savings on using 3cells;
http://www.hobbyking.com/hobbyking/s...idProduct=8835

expensive, but reliable:
http://www.hobbyking.com/hobbyking/s...dProduct=17220

you'll need 40c + ratings to run this fan designed for 4 cells - great thrust!

with either, this has been the ESC i've been using;
http://www.hobbyking.com/hobbyking/s...dProduct=12189
Rock solid. (but heavy)

just remember, extend the 3 motor leads, not the battery leads (unless you would rather have to additionally solder in clusters of low ESR capacitors on the battery lead side.) Otherwise you will eventually kill your ESC capacitors ... (i found this after about 15 flights...)

RE: EDF Ducted Fan Unit 7Blade 2.5inch 64mm - http://www.hobbyking.com/hobbyking/s...inch_64mm.html
I bought two of these and found them to be too agressive in pitch...maybe using a higher cell count and lower KV motor (like 6s and 2100kv or something?) might work.
if you want to stay in 3 and 4 cell territory, i'd recommend staying away from those 7 blade rotors.

if you buy this set - http://www.hobbyking.com/hobbyking/s...idProduct=8835
I can fly with 4S or 3S ?? and how convert foam to 68mm ??

there is another set of cheap to not have to modify the foam ? and fly on 4S ??
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Old Aug 06, 2012, 03:32 AM
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Singapore, Singapore
Joined Jul 2012
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...

I got a full re-fund for my orange rx. Now is time to move on to better electronis, especially for EDF.
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Old Aug 06, 2012, 03:57 AM
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what do you think about it - http://www.hobbyking.com/hobbyking/s..._Version_.html
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Old Aug 06, 2012, 04:06 AM
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Austria
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Quote:
Originally Posted by Lejna View Post
This is going to be your 1st EDF ... so ... why just not take this: http://www.hobbyking.com/hobbyking/s...dProduct=12942

And figure it later how to improve

Tchuss

e_lm_70
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Old Aug 06, 2012, 04:15 AM
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I read that in this version Plug-n-Fly ESC is too weak and this is a version of the 3S I want 4S version it must have power
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Old Aug 06, 2012, 04:36 AM
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Austria
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Originally Posted by Lejna View Post
I read that in this version Plug-n-Fly ESC is too weak and this is a version of the 3S I want 4S version it must have power
3S is powerful enough.

1 year ago the stock ESC, was not weak ... no problem at all with power ... it was having some random reset during the fly ... causing some unexpected motor power off, especially at full power ... I think this issue should be solved as we speak.

In case of problem with PNF ... just replace the ESC and you are perfectly fine with stock power. ... anyhow, even in the unlucky case you will pay less money going for the PNF versoin. Stock motor and EDF unit is good ... some has also gone with 4S with stock motor and EDF

Tchuss

e_lm_70
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Old Aug 06, 2012, 07:04 AM
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But I want complete a version of 4S who can help me ?
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Old Aug 06, 2012, 07:16 AM
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Quote:
Originally Posted by Lejna View Post
But I want complete a version of 4S who can help me ?
I would pick:
http://www.hobbyking.com/hobbyking/s...45A%5FESC.html

Two: http://www.hobbyking.com/hobbyking/s...cro_Servo.html

Dual Aileron servo is always better

One: http://www.hobbyking.com/hobbyking/s...F13sec%5F.html

For the tail.

That's all you need
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Old Aug 06, 2012, 07:17 AM
Gravity sucks.
Australia, QLD, Toowoomba
Joined Mar 2011
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Quote:
Originally Posted by Lejna View Post
But I want complete a version of 4S who can help me ?
so go with this:
http://www.hobbyking.com/hobbyking/s...dProduct=12942

and get a plush 60 or better, plush 80 ESC and stick a 4s 2200mAh 40c battery in it and fly! (the stock motor will handle 4s very nicely.)
Flight times on the 2200mAh battery will be short because of the extra current draw over the 3 cell option, but it should fit the stock battery compartment without modifications)

Better to fly with a 2650 or 3000 if you're flying 4s for longer flight times. (requires modifications to fit.)
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Old Aug 06, 2012, 07:18 AM
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As battery I will go for this : http://www.hobbyking.com/hobbyking/s...Lipo_Pack.html

For keep the weight down.

Tchuss

e_lm_70
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Old Aug 06, 2012, 07:31 AM
Gravity sucks.
Australia, QLD, Toowoomba
Joined Mar 2011
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Quote:
Originally Posted by e_lm_70 View Post
As battery I will go for this : http://www.hobbyking.com/hobbyking/s...Lipo_Pack.html

For keep the weight down.

Tchuss

e_lm_70
for a small battery, the AMPS drawn by 4 cells is going to require something like
http://www.hobbyking.com/hobbyking/s..._4S1P_40C.html
a higher rated discharge pack.... it should still fit the battery cage, but you may need to put a small counterweight at the tail to balance at the CG.

i started with turnigy 3s 2200's and 4s 2200's and all 4 packs (2 of each) puffed after the first flight - they were 20c rated... (i went cheap - not the wisest move i'll admit! )
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