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Old Dec 20, 2008, 12:42 AM
Have Fun! Land, Sea or Air
jetcaptain's Avatar
United States, TX, Austin
Joined Jul 2006
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I didn't read the specs. close enough. You would want to go 3S and put on a smaller prop.

Quote:
Originally Posted by uniquexme
u mean that emax 2805 with 6x4? i assume that u use 2S rite? but i flew it on my zagi, i seems lack of power.
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Old Dec 20, 2008, 06:28 AM
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superinstaller's Avatar
United States, SC, Greer
Joined May 2006
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The numbers dont add up on those specs!? either way it would be under powered, 3 cells will also be a must, you will want something pulling at least 20 amps for realistic airspeed(easer to fly) and 6x4 apc prop.
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Old Dec 20, 2008, 07:06 AM
Have Fun! Land, Sea or Air
jetcaptain's Avatar
United States, TX, Austin
Joined Jul 2006
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They are posting the results with 2S. I don't think it could handle 3S based on the prop/motor calculator. Even with a 4" prop, you are pulling 19amps at full power.

Over all, if you just want to fly the plane and not go vertical this motor could do it on 2S only.
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Old Dec 20, 2008, 03:29 PM
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Yeah it will probably fly nice, It is such a great bird all around!
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Old Dec 21, 2008, 04:45 AM
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Switzerland
Joined Sep 2008
898 Posts
Thanks for your replys.
I will reduce the scale of this big bird and use a emax2805 2840kv with a 6x4 and a 2s. If it is not ok, I will buy a 4.7x4.7 and a 3S lipo... then it should be ok...

I will use the dimensions as this one http://www.rcgroups.com/forums/showthread.php?t=740049
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Old Dec 23, 2008, 12:46 AM
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Joined Dec 2008
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Quote:
Originally Posted by chewytm
Just switch any 2 of the three wires between the ESC and the motor and the motor will spin the other way. Make sure the prop is installed in the right direction, i.e. with the small numbers denoting the prop size facing the front of the plane.

chewy
Hi Chewy,

thanks
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Old Dec 30, 2008, 12:37 PM
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Switzerland
Joined Sep 2008
898 Posts
Hi if I understand the video of Jetcaptain (my english is not perfect). I do not need to put a carbon fiber rod ? Is it true ? If not what size should i use ?
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Last edited by Cid156; Dec 30, 2008 at 12:47 PM.
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Old Dec 30, 2008, 01:31 PM
That Guy Who Flies Wings.
La Vista, Nebraska
Joined Mar 2007
395 Posts
Quote:
Originally Posted by Cid156
Hi if I understand the video of Jetcaptain (my english is not perfect). I do not need to put a carbon fiber rod ? Is it true ? If not what size should i use ?
I would use the carbon fiber rod. I built my first without it and the wings would bend alot in tight turns and loops. It doesn't add very much weight and fixes the one weak area of the plane. I like to put a 1.3 mm spar from tip to tip, directly in front of the motor mount. It makes a rock solid plane and increases the strength of the motor mount area.
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Old Dec 30, 2008, 01:51 PM
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Switzerland
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Quote:
Originally Posted by frednjess
I would use the carbon fiber rod. I built my first without it and the wings would bend alot in tight turns and loops. It doesn't add very much weight and fixes the one weak area of the plane. I like to put a 1.3 mm spar from tip to tip, directly in front of the motor mount. It makes a rock solid plane and increases the strength of the motor mount area.
Ok what do you mean by tip to tip ?
I have rod of 3 or 2
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Old Dec 30, 2008, 05:01 PM
Pusher jets rule!
crxmanpat's Avatar
Mesa, AZ
Joined Jan 2006
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He means from wingtip to wingtip. See the first picture in post 776 just above. The carbon rod I used was about 5mm in outside diameter.

Pat
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Old Jan 07, 2009, 09:55 PM
BANDITRCN28
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USA, NC, Salisbury
Joined Jan 2008
808 Posts
Hey guys, I built this plane out of the blue fan foam from lowes awhile back and kind of put it on the back burner for a while and forgot about it...

Wel I'm back on it and am looking for advice on the motor for it..I have a Eflite power 6 brushless setting around kv rating of 2000 or 2200 one of the two and a 6x4 prop off a Striker and was wondering if you guy thought it would move this plane well enough???

Thanks in advance for any help with it...CVOYLES
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Old Jan 07, 2009, 10:19 PM
Pusher jets rule!
crxmanpat's Avatar
Mesa, AZ
Joined Jan 2006
17,136 Posts
CVOYLES,

That Six Series should work perfect as direct drive with an APC 6X4E and at least a 35A ESC. Should get similar perfermonce as we do with the Grayson 2212-06 park jet motor.

Pat
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Old Jan 07, 2009, 10:30 PM
BANDITRCN28
cvoyles's Avatar
USA, NC, Salisbury
Joined Jan 2008
808 Posts
Thanks for the reply crxmanpat, I have a 45 amp Scorpion esc lying around that I plan on using its alittle over kill but I think it will be fine...
Has anyone radared one of these to see how fast they go with the "normal" power system in them???

Thanks...CVOYLES
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Old Jan 07, 2009, 10:33 PM
Pusher jets rule!
crxmanpat's Avatar
Mesa, AZ
Joined Jan 2006
17,136 Posts
The Scorpion 45A is a good choice as the Six Series has a burst rating of 42A.

I've not had any of my planes radared, but I would imagine something in the 45-50mph range. Flat foam can only go so fast.

I like these more for the aerobatics than for the speed. For speed I break out my Phase 3 F-16 foamy EDF.

Pat
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Old Jan 08, 2009, 09:18 AM
That Guy Who Flies Wings.
La Vista, Nebraska
Joined Mar 2007
395 Posts
CVOYLES,
I'm going to second Pat's approval of your power system. Sounds like a winner. On speed, I'd say 60 mph is the top end. I've done some full power dives with my 80% Depron version and the vibrations get pretty violent. I know mine will do 50-60 in level flight. Just remember the wing spar!
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