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Post  mitchg95 Sat Mar 24, 2012 1:04 pm

Hello, I a guillows Piper J-3 Super Cub that is designed for free flight with a cox peewee. I am thinking to convert this free flight model to rc, can you guys help me with this conversion. Also has anyone else done this conversion with a peewee, and how did it fly
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Post  SuperDave Sat Mar 24, 2012 1:32 pm

Mitch:

Suggest you just try building and completing a Guillow's kit before converting one to RC. They are not as simple as you might like think.

A 300 Series "Super Cub" has 24" wingspan and will require micro radio gear to keep the flight weight down to an acceptable level.
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Post  mitchg95 Sat Mar 24, 2012 1:34 pm

what servos do you think i should use

Dave:
i have already built the whole elevator for rc Shocked, stayed up to late last night trying to get it closer to being finished
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Post  SuperDave Sat Mar 24, 2012 2:25 pm

I've used Futaba S3114's with good success (7.8 grams each) plus linkages.

Sheet balsa works better for elevators and horizontal stabilers than the traditiona ones used on Guillow's kit. They are more subject to stress than on a free-flight.

IIRC we discussed the same plane several months ago. Suggest you find an experienced builder in your area to help you. A forum just won't provide the kind of help you need.

If you were learning to play golf actual lessons are more help than an I'net forum.
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Post  mitchg95 Sat Mar 24, 2012 3:06 pm

cool thanks Dave, ill make the control surfaces out of sheet balsa. I have some spectrum ds-85 servos, will those work?
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Post  Cribbs74 Sat Mar 24, 2012 3:15 pm

Mitch,

SuperDave has a point, if you can find a local builder that might help a bunch. Are you a member of your local club? If you can't find anyone then by all means post here as we have several excellent builders on this forum. Just be sure to post pictures and give detailed info. That way you can get the best answers. Keep in mind all folks do things differently so you will get a lot of different opinions. Take what you get here and do what works best for you based on tools, supplies and funds. That being said don't cut corners either just to save a buck. Sometimes a little bit of an investment of time or money will save you from disaster.

Do it right the first time! It will save time in the long run.

Mentoring session over!
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Post  mitchg95 Sat Mar 24, 2012 3:20 pm

thanks Ron, i am not a member of the local flying club because i do not fly at the airfield very often mainly at the parks. I will seek out the advise of a expert local builder and i wont cut corners as i dont want to rebuild. thanks for all of the suggestions, keep em' coming. i will post pics as i build as you brought out that i should do
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Post  nitroairplane Sat Mar 24, 2012 4:04 pm

I have done te Cessna From the same series as RC with a tee dee .020
They are very easy to do, finding an experienced builder would be good but not 100% necessary expecially with this model.
I used 5g servos and a 4g spektrum Reciever with a 600 mah micro 1s lipo pack.
Try to keep weight about 7oz or less.
Maybe the vert stab sheet balsa.
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Post  mitchg95 Sat Mar 24, 2012 4:12 pm

cool thanks nitro Very Happy do you have pics?
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Post  Surfer_kris Sat Mar 24, 2012 5:25 pm

Here is a non-Guillows with a peewee in the front, it flies well at 5oz total weight but needs a calm day;

guillows rc #303 Img_0710

guillows rc #303 Img_1110
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Post  fredvon4 Sat Mar 24, 2012 5:26 pm

Not trying to dampen you enthusiasm but I highly recommend you slow down and get back to the chuck glider conversion

You will learn so much if you stick with RC conversion of the chuck glider first before investing the effort in the Gillows build (and covering) for a RC variant.

With today’s equipment anything is possible but each project will require building on lessons learned from previous experiments.

The Giant (relativley speaking) chuck glider will allow you to learn RC set up, propulsion dynamics (right and down thrust and why) and a host of construction and trimming skills on a relatively inexpensive and easy to repair platform.

The Gillows kit is tender and light and a few grams of weight shift will have very dramatic and possibly adverse effects to flight performance. I personally think converting the rubber powered Gillowes kits to Glow and RC is a taks for an experianced modeler and I think the project would tax my meager skills

My desire is for you to be successful, gain wisdom, experiance, and learn how to enjoy the success of creating something that performs well enough on maiden flight to give good clues so you will be successfull learning to properly trim the craft
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Post  mitchg95 Sat Mar 24, 2012 5:28 pm

Surfer_kris wrote:Here is a non-Guillows with a peewee in the front, it flies well at 5oz total weight but needs a calm day;

guillows rc #303 Img_0710

guillows rc #303 Img_1110

wow that is impressive Damn! who makes that kit?
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Post  mitchg95 Sat Mar 24, 2012 5:30 pm

fredvon4 wrote:Not trying to dampen you enthusiasm but I highly recommend you slow down and get back to the chuck glider conversion

You will learn so much if you stick with RC conversion of the chuck glider first before investing the effort in the Gillows build (and covering) for a RC variant.

With today’s equipment anything is possible but each project will require building on lessons learned from previous experiments.

The Giant (relativley speaking) chuck glider will allow you to learn RC set up, propulsion dynamics (right and down thrust and why) and a host of construction and trimming skills on a relatively inexpensive and easy to repair platform.

The Gillows kit is tender and light and a few grams of weight shift will have very dramatic and possibly adverse effects to flight performance. I personally think converting the rubber powered Gillowes kits to Glow and RC is a taks for an experianced modeler and I think the project would tax my meager skills

My desire is for you to be successful, gain wisdom, experiance, and learn how to enjoy the success of creating something that performs well enough on maiden flight to give good clues so you will be successfull learning to properly trim the craft

thanks for the input Fred, i might do this as freeflight and rebuild the elevator. Ill get back to the chuck glider conversion. Is this a good ff plane? or should i get the guillows Javilin for ff with a peewee?
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Post  Surfer_kris Sat Mar 24, 2012 6:06 pm

mitchg95 wrote: who makes that kit?

It's a laser cut kit made in sweden. It was meant for indoor flying and some odd electric type of motors, but I don't have any of those...

If you are a beginner on RC you could look for a glider or old-school FF, they are very stable and can fly without input, more like guided free flight in a relaxed mode.
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Post  nitroairplane Sat Mar 24, 2012 6:15 pm

I do agree with Kris.
But this is not hai first RC plane.
Mitch can already fly RC.
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Post  SuperDave Sat Mar 24, 2012 7:09 pm

Mitch:

FYI: A J-3 Cub and Super Cub are two different aircraft from Piper the former being the older model than the later.

I'm now going to "bow out"of this discussion with you. Good luck with anything you try.
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