RE: E-flite J-3 Cub 25 ARF  
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All Forums >> Electric Aircraft Universe >> Electric Aerobatic & Sport Planes >> RE: E-flite J-3 Cub 25 ARF
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RE: E-flite J-3 Cub 25 ARF - 3/13/2007 3:21:42 AM   
cherrypop


 

Posts: 6
Joined: 3/27/2006
From: Colorado, CO, USA
Status: offline 		Hi everyone,

I'm toying with the idea of buying an E-Flite J-3, and was wondering if anyone's using it with a Spectrum system.

I'm interested in knowing which system you're using, which receiver and which servos.

Thank you.

Matthew

(in reply to bzyguy01)
       Post #: 276

RE: E-flite J-3 Cub 25 ARF - 3/16/2007 12:12:58 AM   
lthibault



Posts: 358
Joined: 1/9/2005
From: Gatineau, QC, CANADA
Status: offline 		Well here is my reborn J3-Cub, ''Thibault Airline version'' and fit for snow!

I'm now very happy with the product.

However I look different from this pilot

Enjoy.



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< Message edited by lthibault -- 3/16/2007 12:16:45 AM >

_____________________________

Luc

(in reply to bzyguy01)
       Post #: 277

RE: E-flite J-3 Cub 25 ARF - 3/16/2007 2:57:44 AM   
lthibault



Posts: 358
Joined: 1/9/2005
From: Gatineau, QC, CANADA
Status: offline 		Relating to my previous post no 149, I'd like to report a mistake in this setup. By using tight springs the landing gear wheels were closing in a little bit, causing less resistance and drag, thus making the plane taxi too quick, resulting in ground loops and difficult take-off on pavement.

Those extra difficult take-off have misleading me in believing that I could only use the cub with floats.

I recommend leaving the landing gear as is.

_____________________________

Luc

(in reply to lthibault)
       Post #: 278

RE: E-flite J-3 Cub 25 ARF - 3/16/2007 7:45:28 PM   
hobiecatlob


 

Posts: 57
Joined: 1/15/2007
From: Toronto, ON, CANADA
Status: offline 		Hi all,

I have finished building my J-3 and have measured the CG and it seems perfect. Normally this would be fine but I notice that my balance must be far off Greg Covey's from the pics I could see in his build. Greg has his battery far forward, above the removable hatch but when I put mine there the CG was far too far forward. In fact, I even had to install my receiver battery far back in the body, almost to the tail.

Right now, my battery (Lipo-4200 MaH) is under the receiver/servos but the CG is perfectly 2 1/8 " back of the leading edge of the wing.

Does this seem right to you or have I missed something?

Thanks in advance.

(in reply to lthibault)
       Post #: 279

RE: E-flite J-3 Cub 25 ARF - 3/16/2007 7:52:19 PM   
hobiecatlob


 

Posts: 57
Joined: 1/15/2007
From: Toronto, ON, CANADA
Status: offline 		Sorry, I meant 2 5/8" or 66mm behind the leading edge

(in reply to hobiecatlob)
       Post #: 280

RE: E-flite J-3 Cub 25 ARF - 3/18/2007 1:36:46 PM   
Glacier Girl



Posts: 7003
Joined: 7/9/2004
From: SomewhereIn, PA, USA
Status: offline 		Luc, looking good, glad you made the decison to get back on the horse.

cherrypop, the Spektrum should be fine in the Cub, I use the 6 in some of my other birds, and despite the comments of reduced range on the 6, I've never had a problem.

hobiecatlob, Each bird will be different, things like the weight of servos, different running gear, etc. 1/3 the cord is the normal starting point. On mine I ran the bigger motor 32(?) instead of the stock suggested motor, and mine has tundra tires on it. With a 3S3700 20 C pack I have mine stufffed as far back in the battery tray as I could get it to get the CG correct.

Oh something to mention to those using wood props. Wood compresses. Check the tightness of the prop nut. Mine would loosen as the wood compressed and I'd get a prop that would spin on the hub after a couple of flights. Just a matter of adding it to your pre flight.

_____________________________

"The Missing Man Formation"
Looking heavenward you cannot help but shed a tear...mornful...lonesome...a hole that screams out almost as loudly as the roar of the engines that pass over head.

(in reply to hobiecatlob)
       Post #: 281

RE: E-flite J-3 Cub 25 ARF - 3/21/2007 8:45:55 PM   
lthibault



Posts: 358
Joined: 1/9/2005
From: Gatineau, QC, CANADA
Status: offline 		I'm glad to report total success on the maiden of the Cub on skis.

Any negative feedback on this product would be misplaced. It is truly a joy to fly, very scale and relaxing. My take-off and landings were smooth and controlled, even with strong winds around 20-25 MPH.

Looking back at my previous experiences I believe that I was not releasing the elevator stick quick enough, creating a stall. Once the plane is up to speed it's important to release the elevator and go forward, since this wing is already curved.

_____________________________

Luc

(in reply to Glacier Girl)
       Post #: 282

RE: E-flite J-3 Cub 25 ARF - 3/21/2007 9:21:27 PM   
Glacier Girl



Posts: 7003
Joined: 7/9/2004
From: SomewhereIn, PA, USA
Status: offline 		Feels good huh.
Bummer you didn't get around to the skis until it's almost time for pontoons.

Congrats.

_____________________________

"The Missing Man Formation"
Looking heavenward you cannot help but shed a tear...mornful...lonesome...a hole that screams out almost as loudly as the roar of the engines that pass over head.

(in reply to lthibault)
       Post #: 283

RE: E-flite J-3 Cub 25 ARF - 3/23/2007 4:56:35 PM   
lthibault



Posts: 358
Joined: 1/9/2005
From: Gatineau, QC, CANADA
Status: offline 		Right. This model had a long history but a very happy ending . Horizon Hobby provided great support during the whole process.

_____________________________

Luc

(in reply to Glacier Girl)
       Post #: 284

RE: E-flite J-3 Cub 25 ARF - 3/24/2007 1:24:40 AM   
Solid Hit


 

Posts: 49
Joined: 12/7/2005
From: Williamston, SC, USA
Status: offline 		I guess I'm the newest member! I've only put on 3 flights and I can see this plane becoming a favorite. Nice easy going ways, decent loops, and even a respectable roll or two. I'm flying it totally stock.

_____________________________

There is a fine line between Hobby and Obsession ... guess which side of the line I'm on.

(in reply to lthibault)
       Post #: 285

RE: E-flite J-3 Cub 25 ARF - 4/9/2007 7:13:45 AM   
Flyon_rc


 

Posts: 17
Joined: 4/3/2006
From: Casa Grande, AZ, USA
Status: offline 		I am about an hour away from finishing the build on this plane. I bolted a Power 32 on it instead of the 25. Has anyone else done this. The Power 32 motor says it can run 3 cell Li-po's or 4 cell Li-po setups. Any help would be greatly appreciated.

(in reply to Solid Hit)
       Post #: 286

RE: E-flite J-3 Cub 25 ARF - 4/9/2007 12:03:05 PM   
Glacier Girl



Posts: 7003
Joined: 7/9/2004
From: SomewhereIn, PA, USA
Status: offline 		I have the 32 in mine, running a 3S3700-20C pack. 10x6 wooden prop. Flies beautifully.

_____________________________

"The Missing Man Formation"
Looking heavenward you cannot help but shed a tear...mornful...lonesome...a hole that screams out almost as loudly as the roar of the engines that pass over head.

(in reply to Flyon_rc)
       Post #: 287

RE: E-flite J-3 Cub 25 ARF - 4/10/2007 3:11:20 AM   
Falconjet50


 

Posts: 57
Joined: 11/15/2006
From: Deerfield Beach, FL, USA
Status: offline 		What is the difference in peformance between the 32 an 25 motors. What would be the flight time with the 3cell 4200mah battery. I beleive you can get 20 minutes with the Eflite 25 motor.

(in reply to Glacier Girl)
       Post #: 288

RE: E-flite J-3 Cub 25 ARF - 4/12/2007 3:33:57 PM   
Falconjet50


 

Posts: 57
Joined: 11/15/2006
From: Deerfield Beach, FL, USA
Status: offline 		I need to know what amp speed control will work the the Eflite Power 32 motor. Also , Is it better to go with a 4s or 3s battery with this set up.

(in reply to Falconjet50)
       Post #: 289

RE: E-flite J-3 Cub 25 ARF - 4/12/2007 4:01:37 PM   
P-51B



Posts: 6176
Joined: 10/11/2002
From: An Iceburg in, ANTARCTICA
Status: offline 		I have the 25 on 3s, a flying club member has the 32 on 4s on the ultrasticks. I would use the 4s as it seems to be a good setup.

_____________________________

In order to think "outside the box", one must first accept there IS a box.

(in reply to Falconjet50)
       Post #: 290

RE: E-flite J-3 Cub 25 ARF - 4/12/2007 6:47:55 PM   
Falconjet50


 

Posts: 57
Joined: 11/15/2006
From: Deerfield Beach, FL, USA
Status: offline 		So you would go with the Power 32 motor with the 4s 4200 Mah battery? What kind of flight time would I get. Also, What a good