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RE: Sebart's new pattern ship MYTHOS - 10/4/2012 6:35 PM   
luckymacy


 

Posts: 120
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Joined: 10/9/2002
Last Login: 5/25/2013
From: walllingford, PA, USA
Status: offline 		Thanks for the clarification. Is there a contra drive system that's suited to the 8S setup? Also, now that you've flown the Vanquish, wooden fuse Monolog and MythoS 125E, do you have a clear preference? I like the looks of the mythoS hands down best but the power plant options and wing loading to accomodate larger battery packs seem to favor the Vanquish and Monolog as far as flexibility. I think they are even a little cheaper to boot but that's the over riding factor either. There isn't one.

Also, I know the contra drive is just a nice to have and it won't drive any decision for me as I know when and how to use the rudder, LOL, but I think it looks cool and that's enough for it to be an input. I like to try new stuff if it makes some sense. :-)

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       Post #: 101

RE: Sebart's new pattern ship MYTHOS - 10/5/2012 11:39 AM   
talk the torque


 

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From: EmpangeniNatal, SOUTH AFRICA
Status: offline 		Hi Arch

Have you flown the 2m Mythos as yet? I am still struggling a bit with my Wind S Pro with tight or slow KE flight in the new F-schedule. I have the balsa wings and I dont have any wing fences on but to those who I have spoken to say that you can feel the difference in power required once fitting all the wing fences. By the looks of it the Mythos fuze looks the same as the Wind S Pro but it has a new canopy which has the caniliser and also the canopy bubble is shifted fwd. Will it be worth fitting a Mythos canopy on my Wind S Pro for better KE efficiency. I dont have that much experience with canilisers but most seem to say it makes a big difference in KE flight.

Any help please
Cheers
TtT

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       Post #: 102

RE: Sebart's new pattern ship MYTHOS - 10/5/2012 1:00 PM   
rcpattern



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From: Great Mills, MD, USA
Status: online 		TtT,

Unfortunately, I have not had a chance to fly the 2m Mytho. I did fly my Winds with the stab fences and wing fences and here are my observations. I loved the stab fences. They really stabalized the plane in a crosswind. It flew well in crosswinds before, but with the fences it really locked in. I did NOT like the wing fences. I didn't like them, for exactly the reason you may like them. They made the plane fly very well at slow speeds, but what I noticed was that it really limited the stability of the plane to fly faster, especially in a cross wind. From talking to a few guys in the hobby I really respect, and a few aerospace engineers here at the Naval base where I work, they said it was because the fences were in front of the center of pressure of the plane, therefore making it less stable in yaw, which became more noticeable at higher speeds. They did make the plane very solid feeling, with a much improved rudder at lower speeds. I do not have a great deal of experience with planes with canilisers, but on the planes that it helps, it definitely seems to make a big difference. I am sure it has some to do with the new wing shape as well, but even the Mytho S 125 is much happier at slower speeds than my winds ever were, and the rudder authority is incredible. That is with the 125 without the wing fences, so the caniliser much be helping some in this area.

Arch

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       Post #: 103

RE: Sebart's new pattern ship MYTHOS - 10/5/2012 10:14 PM   
talk the torque


 

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From: EmpangeniNatal, SOUTH AFRICA
Status: offline 		Thanks Arch

Thats exactly the info I'm looking for. I think my pattern speed is more medium than slow these days but especially for the rolling figure 8 and KE loop I find the plane buffets at higher rudder input areas and my KE loop and rolling 8 has to be slighty bigger than my other maneuvers to manage them better. Although it doesnt help that some of our comps are at 5500' in altitude. Quite interesting what you say about the fwd centre of pressure that the fences produce. I have always felt that the wide undercarriage makes the plane feel similar to that and, to me, the plane feels more rwd CG or twitchy in yaw compared to pitch. For this I was thinking of the stab fences for the reason of getting some vertical area out at the back, glad to hear you say you find it helps. I was hoping the caniliser would help in KE more efficiently than the fences acting as draggy low aspect ratio SFG's. I'm out of weight and dont want to have to up the size of my Lipos for the extra drag created.

Anyone know if the 2m Mythos canopy would fit the Wind S Pro and if it could be bought separately.

Cheers
TtT

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       Post #: 104

RE: Sebart's new pattern ship MYTHOS - 10/5/2012 10:37 PM   
bem


 

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From: Filipstad, , SWEDEN
Status: offline 		TtT,

http://www.sebart.it/download/sebart-pricelist.pdf

(Page 9)

I do not know what might fit from MythoS 2M to Wind S Pro.

/Bo

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       Post #: 105

RE: Sebart's new pattern ship MYTHOS - 10/6/2012 1:59 PM   
talk the torque


 

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From: EmpangeniNatal, SOUTH AFRICA
Status: offline 		Thanks Bem

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       Post #: 106

RE: Sebart's new pattern ship MYTHOS - 10/6/2012 8:39 PM   
Jeff Pfeifer



Posts: 146
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Last Login: 4/26/2013
From: Yuma, AZ, USA
Status: offline 		I just finished up my new MythoS125e from SebArt last night, and flew it for the first time this morning. If anyone is on the fence on buying this plane you need to pull the trigger on this one. The airplane is very well designed and flies extremely well. The plane is just shy of a full 2M pattern plane (approximately 3" short of 2M") so the airplane when flown at pattern distances presents much like a full 2M plane. Here is my setup:

MythoS 125E
Hacker A60-6XS v2
Spektrum H6040 Servos on Ailerons and Rudder
Spektrum H5010 Servos on Elevators
Spektrum AR8000 DSMX Reciever
Hobbywing HV120 ESC with Soft Braking enabled for down-line braking
2- 6S 3300mah Lipo Batteries in parallel to equal 6S 6600mah.
APC 18x12e Wide Propeller (needs a little bigger prop will test a 19x12e next)

With the above setup I was able to fly the entire F3A P-13 Sequence plus about 5 additional practice maneuvers and used 4450mah (67% of the capacity).

The MythoS is a great practice plane for the seasoned pattern flyer, and a great airframe for those who want to compete in pattern without costing as much as some of the higher end pattern planes of today.

For more info on the SebArt MythoS 125E and Hacker Motors check out the following websites:

www.sebart.it
www.sebartrc.com
www.aero-model.com


Special thanks to Horizon Hobby for their support!



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       Post #: 107

RE: Sebart's new pattern ship MYTHOS - 10/10/2012 6:30 PM   
talk the torque


 

Posts: 57
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Joined: 4/27/2004
Last Login: 11/6/2012
From: EmpangeniNatal, SOUTH AFRICA
Status: offline 		Very nice. What is the AOW and what is the amp draw with the 6s setup?

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       Post #: 108

RE: Sebart's new pattern ship MYTHOS - 5/24/2013 3:14 PM   
SAB


 

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From: Watervliet, NY, USA
Status: offline 		Had a few flights on my Mythos 125 now, running 8S 5000 packs with Hacker A60-5S
My main concern is the pull to canopy in KE - both sides. This is usualy indicative of too forward a CG but I've put the CG as far back as I can (about the rearmost position - 225mm from LE) & it still shows. Can't go any further back as my motor is over 100g heavier than the XS motor plus my batteries are heavier (vs. a 6S set-up).
I have replaced the APCe prop & sebart spinner with a PT 20x12 & Falcon carbon spinner saving 85g, even with with the batteries as far back as they can go I need a 10% R-E mix to rid the KE canopy pull which is more than I would wish. I'm carying only slight up elevator trim (2 clicks).
I have not fitted the wing fences or UC fairings, Rudder servo is in the tail.
So what have other Mythos 125 flyers ended up with reagarding CG & the need for KE mixing, thanks.

Steve

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All Forums >> Electric Aircraft Universe >> Electric Pattern Aircraft >> RE: Sebart's new pattern ship MYTHOS
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