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Old Jul 09, 2015, 10:28 PM
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Tower Hobbies 1/5 Piper J3 Cub ARF .40-.46 81" Wingspan

Right now available only in glow version. Imagine one of these babies flying on Electric Power.... would love one of these. But seeing that I still have a Seagull Spacewalker and Decathlon still in boxes waiting for conversion, would really prefer that Tower provide the EP conversion kit with the GP version. Together with a proper battery hatch, please.

http://www3.towerhobbies.com/cgi-bin...&I=LXFBMG&P=ML

Tower Hobbies 1/5 Piper J-3 40 Cub ARF (1 min 53 sec)


I emailed Tower Hobbies at "info@towerhobbies.com" expressing my interest in an EP version. They replied that they appreciate my feedback.

If sufficient number of us RCGers would write Tower, they might make this big. beautiful and at $179.97, very well priced 81 inch Cub in EP.

With Super Saver Club savings and free shipping, this baby can be at our doorstep for $160.00

What do you think guys?
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Old Jul 10, 2015, 02:35 AM
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The pictures they use are recycled from the Great Planes 40-sized fabric-covered ARF.

There was a question of whether or not this is fabric covered or film covered. The description says film, but the photographs show the fabric-covered ARF. Given the glossy finish, it's almost certainly film, unfortunately.

But yeah. It's a re-issue of the Great Planes ARF.
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Old Jul 14, 2015, 09:53 PM
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Something is bothering me about the specs of this Tower Hobbies Cub.

Wingspan is 81 inches but the fuselage at 49 inches, which should be 52 inches.

It doesn't have the top window, unlike the GP version which is more true to scale.
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Old Jul 14, 2015, 10:39 PM
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The Great Planes ARF, on their website, shows 81" wingspan and 49" fuselage length.

The airplanes are literally identical. The manuals even use the same images. If anything is different, it's the covering.

The fabric-covered ARF didn't have the top window either.

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Old Aug 16, 2015, 06:14 PM
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I have been contemplating buying this one and doing it as an electric, but there doesn't look like there is an easy way to come up with a battery hatch.

Almost looks like you would have to remove the wing to install the battery, unless there is room on the underside to cut in a hatch.

Anybody have one of these? Any Ideas?

This would fly nicely with a Power up 46 sport and a 4S 4000 mah battery.
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Old Aug 17, 2015, 06:08 PM
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Quote:
Originally Posted by curly56 View Post
I have been contemplating buying this one and doing it as an electric, but there doesn't look like there is an easy way to come up with a battery hatch.

Almost looks like you would have to remove the wing to install the battery, unless there is room on the underside to cut in a hatch.

Anybody have one of these? Any Ideas?

This would fly nicely with a Power up 46 sport and a 4S 4000 mah battery.
I don't have one yet. But just thinking like you said, that a hatch can be cut under the fuselage just behind the landing gear mount.

On my Seagull Decathlon, the area behind the landing gear mount is just covered in film, so I will cut the film and build up a hatch from 1/32 plywood and balsa stiffeners.

A battery box will have to built as well but that should be simple enough.

If I got this plane. I have this motor waiting for it. Perfect for 14x7 and 4S 4200mah.

http://www.ebay.com/itm/SK42-50-650K...item1e9beb1e9c
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Old Sep 05, 2015, 12:41 PM
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Well, I just ordered one. Also ordered servos for it so I was able to get a $25 discount, and it was free shipping.

Now just have to wait to see what mods I need to make for a battery compartment.

I'll be using this: http://www.headsuphobby.com/Power-Up...otor-F-586.htm

And this: http://www.headsuphobby.com/Sky-Powe...-BEC-H-115.htm

along with a 4 cell 4500 lipo for power.
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Old Sep 06, 2015, 12:43 AM
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Nice! Please keep us posted on your build.
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Old Sep 06, 2015, 12:47 PM
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Something to think about : How about modifying one of the windows so the battery could be put in through there . That way you could build a false deck inside.

I had a couple negative comments but I'll just settle for this . ENJOY RED
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Old Sep 06, 2015, 03:22 PM
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Quote:
Originally Posted by redh View Post
Something to think about : How about modifying one of the windows so the battery could be put in through there . That way you could build a false deck inside.

I had a couple negative comments but I'll just settle for this . ENJOY RED
That is a good idea. I'll definitely consider it.

I don't mind negative comments as long as they are meant as constructive criticism. If so, feel free.
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Old Sep 09, 2015, 09:32 PM
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It flies well with glow....should fly just as good E-powered

http://www.rcgroups.com/forums/showthread.php?t=2460071

Jerry
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Old Sep 12, 2015, 01:36 PM
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Originally Posted by tailskid2 View Post
It flies well with glow....should fly just as good E-powered

http://www.rcgroups.com/forums/showthread.php?t=2460071

Jerry
Nice review you got there, Jerry.

I am sure she'll fly great on Electric. Just the little detail of the battery hatch that bothers some potential buyers, i.e. myself. I already have a three nitro ARFs awaiting conversion.

I am sure Curly will get it done and look forward to conversion updates and of course the flight videos.
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Old Sep 12, 2015, 01:44 PM
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Thanks for the kind words Easyrider....yeah there would have to be some modification to access the battery, probably through the bottom.

Jerry
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Old Sep 13, 2015, 03:28 PM
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The Cub was delivered Thursday and today I got some time in the shop, so here we go.

I decided to go the route of the top front hatch, as that worked out pretty good for me on my Kadet Senior that I converted.

I marked out the longest area I could without interfering with major structural members. and then carefully cut it out with a model knife and razor saw.

As you can see in the pictures, now I've got a big hole in my brand new Cub!!
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Old Sep 13, 2015, 03:39 PM
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I tried the battery I'm using, and as you can see, there is plenty of room to get it through the hatch and ample space fore and aft to place it for getting the proper CG.

I will do some reinforcing on the cut out hatch to make it rigid and also at the sides of the opening and the firewall. This will also give me places to put magnets to hold the hatch in place.

I will permanently attach the bottom of the windshield to the hatch, and figure out some easy fastening system for where the top fits at the front of the wing; maybe a little bit of black velcro will do it.

Stay tuned, more to come.
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