Sebart 50E class Contradrive - RC Groups
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Jul 17, 2017, 07:42 AM
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Milan Valenta's Avatar
Cool

Sebart 50E class Contradrive


Hi guys,
we made contradrive system for 50E class, system works with PTmodel 17" props and 5S lipo
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Jul 18, 2017, 04:13 PM
Registered User
Hi,
Looks great ! Very interested !!
On the other hand, less than 300 gramms for the complete unit with props - almost cannot believe that it will sustain the required power for a 50 class F3A pattern ship !?
So, what is the amp draw at 5s then - I guess it should be somewhere around 60 to 80A in total to have enough power authority !
Please let me know !
You have a home page besides or will you make this drive available - again - very interested !
Kind regards
hans

PS: please confirm that this is a two motor/ two ESC solution here ?
Last edited by hofer; Jul 18, 2017 at 04:20 PM.
Jul 19, 2017, 10:50 AM
ltc
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Is it available for sale?
Any other details would be appreciated.
Jul 21, 2017, 04:31 AM
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Milan Valenta's Avatar
Quote:
Originally Posted by hofer
Hi,
Looks great ! Very interested !!
On the other hand, less than 300 gramms for the complete unit with props - almost cannot believe that it will sustain the required power for a 50 class F3A pattern ship !?
So, what is the amp draw at 5s then - I guess it should be somewhere around 60 to 80A in total to have enough power authority !
Please let me know !
You have a home page besides or will you make this drive available - again - very interested !
Kind regards
hans

PS: please confirm that this is a two motor/ two ESC solution here ?
Hi, system is only ONE motor and gearbox, so we need only one ESC, and I have Jeti SPINN 66A with Bec maximaly i used 55A from 5S. I fly 10min and used 2000mAh from battery (5S Hacker F3A 4600mAh) and plane weight RTF 2800g +-
Last edited by Milan Valenta; Jul 21, 2017 at 04:37 AM.
Jul 21, 2017, 04:35 AM
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Milan Valenta's Avatar
Quote:
Originally Posted by ltc
Is it available for sale?
Any other details would be appreciated.
not yet, because we must make some "hard" test, For it to be reliable, but i think it will not take long and can go on sale
Jul 22, 2017, 04:34 AM
Registered User
Hi Milan,
All this sounds very good to me !
I have a Naruke 50class Asyuler that I would like to convert to contra drive
This airframe is considerably lighter than your Wind 50 and your drive would make a great set up with Asyuler, I am totally convinced !
Let us know about your progress then, please !
Regards from Switzerland
hans
Ps: I would not mind to upgrade Asyuler to Naukes latest in the 50 class : Acuracy !
Last edited by hofer; Jul 22, 2017 at 03:08 PM.
Jul 22, 2017, 03:04 PM
Registered User
Hi Milan,
I do suggest to post your thread also on RCuniverse under Pattern flying "electric pattern flying " and you will have much more response there !
That is actually the place where pattern guys meet on forums ! Sorry RC groups, but you have many other top spots in the RC world !
hans
Jul 22, 2017, 03:59 PM
ltc
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How did you find a Naruke Asyuler?
I would love to have a Naruke plane but haven't been able to get one ...
Jul 23, 2017, 06:31 AM
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Hi Itc,
Well, should not be a problem - Ken Hirose from narutech likes to do business with you !
He is very knowledgable and is fluent in english - it has always been perfect to deal with him !
Latest email I have got is : k-hirose@io.ocn.ne.jp
Of course, Asyuler is already a vintage plane, the actual model is the Ascent ! Same size, almost same look, better in any way ?!, but definitely more expensive !!
see you
hans
Last edited by hofer; Jul 23, 2017 at 07:38 AM.
Jul 23, 2017, 06:39 AM
ltc
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Thank you very much
I will try contacting Hirose-san at that email.
The website I once bookmarked for Naruke is no longer valid, I will have to search and update that as well
Jul 23, 2017, 06:43 AM
ltc
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I have a new in box Oxai Citrin 50e (got it from aerobertics in Belgium) which might be perfect for this new motor
I look forward to more news in the future ...
Jul 30, 2017, 03:41 PM
Registered User
Hi Itc,
Citrin 50 bipe from Oxai ( well, at least they market it ! )
It would be nice - anyhow - bipes are heavier than monos and again - Milan`s drive looks almost too light for me to deliver the necessary power and thrust !
50 amps on 5s seems just too low - you know it - a pattern plane needs around double the thrust to weight ratio to really be up to the task
A Naruke Ascent coming in at probably 2600 gramms might get the ticket though !!
Let`s just wait for Milan to get further into development of this so much wanted drive unit !
see you
hans
Last edited by hofer; Aug 02, 2017 at 04:30 PM.
Sep 15, 2017, 03:59 AM
Registered User
Hi Milan,
Well, any news about your contra drive then ?
Hans


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