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Speed,Combat,Scale,Racing => Scale Models => Topic started by: Gerald Schamp on September 29, 2016, 07:36:42 PM

Title: Piper Cub J-3
Post by: Gerald Schamp on September 29, 2016, 07:36:42 PM
Has anyone built Piper Cub J-3 f or Controline Scale? If so what plans did you use and how big? Are there R/C kits out there that could be used? I have one of the SIG kits, but its a little bigger than I wanted to use, something more in the 50 inch wing span area.
Title: Re: Piper Cub J-3
Post by: Tim Wescott on September 29, 2016, 09:38:45 PM
Sig used to tout the fact that their kit too CL Scale honors at the Nats one year.

IIRC the basic kit is a six foot wingspan, and the Cub has a pretty high aspect ratio.  You could get documentation for a clipped-wing and make it to that.
Title: Re: Piper Cub J-3
Post by: Avaiojet on September 30, 2016, 06:39:19 AM
Has anyone built Piper Cub J-3 f or Controline Scale? If so what plans did you use and how big? Are there R/C kits out there that could be used? I have one of the SIG kits, but its a little bigger than I wanted to use, something more in the 50 inch wing span area.

Gerald,

Great Planes made them in a few different sizes, three I believe. Your interest would be the smallest? 50" I think.

I made correct scale graphics for all of them, they were very popular models some years back and many built them for 1/4 and 1/3 scale. This is all R/C.

There is a "Twin" J3 Cub, actual aircraft. A Cub with two fuselages. Extra points there if you compete with it.

Here's a scale model of a J3 Cub sporting CFC Graphics. Looks real.

Good luck.

Charles




Title: Re: Piper Cub J-3
Post by: Paul Smith on September 30, 2016, 07:29:08 AM
People use such planes because of the small scale factor, 1/4, 1/3 or even 1/2.  The model flys just like the real thing.

Catch 22:  the judges expect A LOT more detail on a plane of this scale.
Catch 23:  they've already seen a lot good Cubs.
Title: Re: Piper Cub J-3
Post by: Trostle on September 30, 2016, 11:09:35 AM
AMA plans service lists all sorts of Piper Cub J-3 models.  Most are FF in all sizes.  A couple of bigger RC ships.  However, there are two listings that might interest you.

One is the plans for the Sterling kit.  Can be built for RC or CL.  Span is 54"

The other is for RC.  Published in Jan 55 Air Trails. 50" span.

Keith
Title: Re: Piper Cub J-3
Post by: Bob Heywood on September 30, 2016, 01:47:37 PM
AMA plans service lists all sorts of Piper Cub J-3 models.  Most are FF in all sizes.  A couple of bigger RC ships.  However, there are two listings that might interest you.

One is the plans for the Sterling kit.  Can be built for RC or CL.  Span is 54"

The other is for RC.  Published in Jan 55 Air Trails. 50" span.

Keith

Greg, the AMA Plans guy, will scale any plan to whatever size you might want.
Title: Re: Piper Cub J-3
Post by: Gerald Schamp on October 01, 2016, 04:39:29 PM
Thanks Keith, forgot about AMA plans. Old age and all:).
Title: Re: Piper Cub J-3
Post by: Chris McMillin on October 08, 2016, 10:38:48 PM
Gerald,
Julie Able won the Nats in Jr with the Sig Clipped Wing Cub kit. It's 56" span.
Chris...
Title: Re: Piper Cub J-3
Post by: Tim Wescott on October 09, 2016, 05:38:22 PM
People use such planes because of the small scale factor, 1/4, 1/3 or even 1/2.  The model flys just like the real thing.

Catch 22:  the judges expect A LOT more detail on a plane of this scale.
Catch 23:  they've already seen a lot good Cubs.

One of the things that I've learned from flying stunt is that going to contests, doing your best, and not winning, can be very rewarding.  So if you want to model a J-3, just do it.
Title: Re: Piper Cub J-3
Post by: Robert Whitley on October 09, 2016, 09:30:49 PM
Take note that the Cub pictured has flaps and a pressure cowling. That would make it a Super Cub and would indeed be soloed from the front seat.

Been flying the full size ones since 1979.

Robert Whitley
Title: Re: Piper Cub J-3
Post by: Chris McMillin on October 10, 2016, 12:04:02 AM
You can solo a J-3 from the front, you just have to be careful wheel landing it because it's a little nose heavy. Not saying one should... just that they have been.
Chris...
Title: Re: Piper Cub J-3
Post by: FLOYD CARTER on October 10, 2016, 01:24:40 PM
When I flew a J-3, I chickened out and sat in the rear seat.  Not fun!  Take off and landing a particular challenge because of poor visibility over the nose from the back seat.  Also, I had to lean forward and squint to read the panel instruments (such as they were).  Really only interested in airspeed to set glide.  The others really not necessary.

If it ever happened again, I would bring along a bag full of sand for the rear seat, and sit up front.

Floyd
Title: Re: Piper Cub J-3
Post by: Robert Whitley on October 12, 2016, 07:13:42 PM
Try instructing ab-initio students from the back seat especially the larger ones.
Your only references are the side windows and your ears.
It can indeed be interesting at times, especially when you throw in a crosswind.

Citabrias and Champs are much friendlier since the airspeed indicator is on the left of the panel and is somewhat visible if the student leans to the right.

Robert Whitley
Title: Re: Piper Cub J-3
Post by: Don Chandler on October 12, 2016, 07:18:45 PM
Several years ago I built a Sterling J3 with a ST. 35 int. Flew really well. won trophies at 2 or 3 NW Regionals and 4 firsts and one second at local meets. Every now and then I see one for sale on E bay. Wing was 48 or 50 inches.

Don
Title: Re: Piper Cub J-3
Post by: Fred Cronenwett on October 27, 2016, 08:28:07 PM
I fly a Piper cub with a 80" span and is powered with a .46 sized engine. The model weighs about 7-8 lbs and is not a problem in terms of line tension. The bigger you build the better it flies and easier to hide the hardware inside the fuselage.

It was built from the Hanger Nine ARF kit and is now over 20 years old

Fred
Title: Re: Piper Cub J-3
Post by: FLOYD CARTER on November 03, 2016, 10:17:41 PM
I've entered C.L scale contests with models having

fixed landing gear

no flaps

no engine speed control

no bomb drop or other "tricks"

I didn't win anything.  Reasons noted above.  Still, had a good time--at the same time using models I already had.

Enter a J-3 and you have 2 strikes against you already.  The advantage is they are fun to fly, and look great in the air.
Title: Re: Piper Cub J-3
Post by: Avaiojet on November 04, 2016, 06:51:26 AM
I've entered C.L scale contests with models having

fixed landing gear

no flaps

no engine speed control

no bomb drop or other "tricks"

I didn't win anything.  Reasons noted above.  Still, had a good time--at the same time using models I already had.

Enter a J-3 and you have 2 strikes against you already.  The advantage is they are fun to fly, and look great in the air.

These guys that compete know all the "Tricks." They make sure their plane can do them also.

Why go home without a Trophy.
Title: Re: Piper Cub J-3
Post by: john e. holliday on November 04, 2016, 06:33:59 PM
There are some that enter just to fly and then there are the die hards that do every thing possible to win. H^^