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RE: Building a GP 60 size J3 Cub - 11/27/2006 11:34:26 PM   
NCIS


 

Posts: 3016
Joined: 5/28/2006
From: Janesville, WI, USA
Status: online 		By the way I love this building soooo much I decided to get the Top Flite Gold Edition Giant Scale FU Corsair 86.5" wingspan 30lbs. with a Zenoah G62 Gasser so I would have an easy one to build. I think i'm definitely going insane. The Cub will be at least another month or so and then I need to build a new work table. Mine has seen it's better days. I think the Corsair will like a nice solid perfectly flat surface. I think that one should only take me a year or so to build. I still have a kit on the shelf. I don't know what I'm thinking anymore. Well it will be my Christmas present to me from my wife any two children. There I justified it. I fell better already. It should arrive tomorrow. Ha! Ha!

The Insane,

Gibbs

(in reply to NCIS)
       Post #: 101

RE: Building a GP 60 size J3 Cub - 11/28/2006 12:06:19 AM   
x-craft



Posts: 366
Joined: 4/20/2003
From: Traverse City , MI, USA
Status: offline 		Gotta love it man! I never thought I'd finish my Stinson, just when I thought I was making progress I'd find something else to do and that would add another month onto the project. I loved every minute of it though.

_____________________________

And then I heard that sickening crunch. Now I have room for another one :-)

(in reply to NCIS)
       Post #: 102

RE: Building a GP 60 size J3 Cub - 11/28/2006 12:43:06 PM   
TomCrump



Posts: 2323
Joined: 4/7/2003
From: Traverse City, MI, USA
Status: offline
quote:

ORIGINAL: NCIS

Ain't kit building great fun and soooooo relaxing!!!

Gibbs



It must be, Gibbs. Why else wouldwe do it?

_____________________________

Tom C

(in reply to NCIS)
       Post #: 103

RE: Building a GP 60 size J3 Cub - 11/28/2006 11:20:11 PM   
NCIS


 

Posts: 3016
Joined: 5/28/2006
From: Janesville, WI, USA
Status: online 		Hello Everyone,

I wanted to tell you things are going well. I fixed the turtle deck and it looks better than before my dumb thumb went through it. The engine is installed and the cowling is primed and installed as well. I have started the cockpit as you can see in the pictures I enclosed.

Gibbs

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(in reply to NCIS)
       Post #: 104

RE: Building a GP 60 size J3 Cub - 11/28/2006 11:24:09 PM   
x-craft



Posts: 366
Joined: 4/20/2003
From: Traverse City , MI, USA
Status: offline 		That cowl sure is a nice fit with the inverted 4 stroke. I used a 91 in mine and it's perfect, overpowered but a nice fit. What motor did you use? I'm guessing a 70 looking at how it's fitting there. Looks good, I like your seats. I just put in a floor to cover the servo's and called it good.

_____________________________

And then I heard that sickening crunch. Now I have room for another one :-)

(in reply to NCIS)
       Post #: 105

RE: Building a GP 60 size J3 Cub - 11/28/2006 11:59:47 PM   
NCIS


 

Posts: 3016
Joined: 5/28/2006
From: Janesville, WI, USA
Status: online 		x-craft,

Believe it or not it's a Magnum .91 4-stroke! But it did fir nicely if I say so myself and you of course.

(in reply to x-craft)
       Post #: 106

RE: Building a GP 60 size J3 Cub - 11/29/2006 12:04:58 AM   
NCIS


 

Posts: 3016
Joined: 5/28/2006
From: Janesville, WI, USA
Status: online 		x-craft,

Here are some close up pic's if this crappy digital camera will focus close up.

Gibbs

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(in reply to NCIS)
       Post #: 107

RE: Building a GP 60 size J3 Cub - 11/29/2006 12:26:07 AM   
x-craft



Posts: 366
Joined: 4/20/2003
From: Traverse City , MI, USA
Status: offline 		I used the Magnum in mine as well. If you have not run one inverted it will run rich so you have to lean it out more than normal to get it running smooth. I've not had any trouble at all and I don't run onboard glow. Never a problem, no dead sticks etc. If it's tuned right it won't miss a lick.

_____________________________

And then I heard that sickening crunch. Now I have room for another one :-)

(in reply to NCIS)
       Post #: 108

RE: Building a GP 60 size J3 Cub - 11/29/2006 1:06:03 AM   
NCIS


 

Posts: 3016
Joined: 5/28/2006
From: Janesville, WI, USA
Status: online 		x-craft,

I inverted the .91 Magnum 4-stroke in my CG Super Chipmunk also. I haven't even started the engine yet. Thanks for the info!

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(in reply to x-craft)
       Post #: 109

RE: Building a GP 60 size J3 Cub - 11/29/2006 1:11:53 AM   
x-craft



Posts: 366
Joined: 4/20/2003
From: Traverse City , MI, USA
Status: offline 		Wow, this is weird, I also have a CG chipmunk that I put an O.S. 91 in. its not inverted but you will like the way it performs for sure. That 91 is a great match for that plane. I've got more time on that airframe than anything else I own. It's just a fun, go to the field, bore holes in the sky and enjoy yourself airplane.

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_____________________________

And then I heard that sickening crunch. Now I have room for another one :-)

(in reply to NCIS)
       Post #: 110

RE: Building a GP 60 size J3 Cub - 11/29/2006 2:37:00 AM   
jagnweiner



Posts: 824
Joined: 2/18/2003
From: Bloomington, MN, USA
Status: offline 		Gibbs-

I joined the party late, but I am enjoying your thread. I built the GP .60 Cub three years ago. It was my first kit. I agree that it is probably not a good first kit, but I think it's a decent second kit. I had the same problem you had with the wing tips. The die cuts just aren't the right shape. Other than that, I thought the kit was pretty good. I also thought the instructions were very good.

I used a Saito .91, which is perfect. It is way more power than necessary on land, but just right with floats. I recommend not gluing the servo tray in and cutting the pushrods to length until you are ready to balance the plane. I put mine in the position on the plans and ended up having to add some lead to the nose to balance. I think I could have avoided it by moving the servo tray back.

If you haven't figured it out by now, ditch the factory tailwheel setup and get a Sullivan or similar.

I didn't notice whether you got the GP float kit. Thats what I built and it was a bear to build. They also weigh a ton, but they work well and look pretty good. They are definitely designed for this kit. Nothing beats flying the Cub on floats.

Other kits may be a little more scale, but this plane's best feature is that it is built like a brick outhouse. Mine survived various semi-crashes mostly unscathed, including a nose-in to the lake from about 30 feet up. Unfortunately, the string ended earlier this year when pilot error caused a major cartwheel crash. Amazingly, the wing is in perfect condition. The fuselage is now a two-piece model, with a break right behind the cabin. Everything else is fine. I hope to get it repaired and recovered this winter.

I'll keep following your progress and look forward to the finished product.

-Scott

_____________________________

-Scott
WACO Brotherhood #61

(in reply to x-craft)
       Post #: 111

RE: Building a GP 60 size J3 Cub - 11/30/2006 12:18:30 AM   
NCIS


 

Posts: 3016
Joined: 5/28/2006
From: Janesville, WI, USA
Status: online 		Scott,

Your a day late and a dollar short. I already glued in the servo tray. I didn't even think about balancing at that point. I am definitely going to use a different tail wheel setup but not sure yet. I do have the GP float kit and the box weighs a ton. I don't know how much the plane will weigh with them on it but I'm happy to hear the .91 will pull it's weight. What was the reason the floats were hard to build. I do know it would of been nice to have a set of plans with cross sections etc. Thanks for the input.

ex-craft,

I like the chippy, happy to see someone else likes to be different and not go red, white, and blue. I let my daughter pick my colors and you see what I got. She also showed me how she wanted it painted and where each color would go. That's her plane she said. I have a 12 year old daughter and an 11 year old son and they are both AMA members and want me to teach them to fly next summer with my Nexstar.

I got my 90 degree pipe today and Tru Turn Spinner. I didn't have to remove much of the cowling for this setup. Heres some pic's

Gibbs



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(in reply to jagnweiner)
       Post #: 112

RE: Building a GP 60 size J3 Cub - 11/30/2006 3:16:08 AM   
jagnweiner



Posts: 824
Joined: 2/18/2003
From: Bloomington, MN, USA
Status: offline 		Gibbs-

I hear you. I didn't think about balancing when I glued my servo tray in either. It's no biggie. I don't remember if you're using a Magnum .91 for this also, but it weighs a little more than the Saito, so that will help some. I didn't add a ton of lead, maybe 2 oz., plus a heavy hub for the spinner.

On the floats, I found them to be a bit of a challenge just because the there are a lot of long joints/seams that are difficult to line up 100% perfect. I also glassed mine and it was my first glass project. They leaked through the keel the first time I tried them. I patched the leak, but they look pretty ugly right now. I need to smooth them up, add more resin and repaint. It's a ways off, but when you first try flying with floats, be careful. Do everything much more slowly. Let the plane fly itself up gradually on takeoff, rather than pulling up hard on the elevator. The nice thing about a Cub on floats, though, is no ground loops on takeoff! You'll come to appreciate that.

As long as I'm rambling . . . If you haven't flown a Cub, takeoffs are the hardest part. They do want to ground loop. A little toe-in on the gear helps a lot. It is also much easier to take off from grass rather than pavement.

Have fun and keep up the good work.

_____________________________

-Scott
WACO Brotherhood #61

(in reply to NCIS)
       Post #: 113

RE: Building a GP 60 size J3 Cub - 11/30/2006 12:43:06 PM   
TomCrump



Posts: 2323
Joined: 4/7/2003
From: Traverse City, MI, USA
Status: offline 		Gibbs, I didn't have a balance issue, using the 91 Surpass. I do have my battery located under the fuel tank.

If you need to add nose weight, go to a 1300ma battery pack. Might as well add useful weight.

_____________________________

Tom C

(in reply to jagnweiner)
       Post #: 114

RE: Building a GP 60 size J3 Cub - 11/30/2006 8:54:22 PM