Go Back  RCU Forums > RC Airplanes > ARF or RTF
Reload this Page >

Hangar 9 80" J3 Cub ARF...

Notices
ARF or RTF Discuss ARF (Almost Ready to Fly) radio control airplanes here.

Hangar 9 80" J3 Cub ARF...

Old 06-01-2016, 06:00 PM
  #1  
LSP972
Senior Member
Thread Starter
My Feedback: (13)
 
Join Date: Dec 2001
Location: Zachary, LA
Posts: 4,749
Likes: 0
Received 1 Like on 1 Post
Default Hangar 9 80" J3 Cub ARF...

Ran across one today (NIB) in the LHS, at a very nice price, so I bought it. I also bought a NIB Saito 72.

After looking at it later, that 72 seems like a bit more engine than this model needs. So I have a question to those who have had this model:

I have a well-used/but in great shape OS 52 Surpass four stroke. Anyone know if that is enough engine for Cub-like flight?

.
Old 06-01-2016, 06:18 PM
  #2  
52larry52
My Feedback: (1)
 
Join Date: May 2009
Location: Ocala, Florida
Posts: 1,284
Likes: 0
Received 3 Likes on 3 Posts
Default

The O.S. 52 will fly it once in the air, however the Saito 70 will get you in the air with less effort especially off grass. I would use the Saito 70 on this plane. I have an 80" H-9 J-3 with a Saito 65 and it is very nice combo. I also have two other 80" size Cubs with 2 stroke O.S. 46 FX engines and they do fly well but the Saito 65 powered one is better. Scale like flights off a grass runway is what I do with my Cubs.
Old 06-01-2016, 07:48 PM
  #3  
captinjohn
 
Join Date: Jan 2002
Location: Hesperia Michigan, MI
Posts: 12,957
Received 4 Likes on 4 Posts
Default

What scale size would a 80 inch J-3 Cub be ? Thanks John
Old 06-01-2016, 08:17 PM
  #4  
52larry52
My Feedback: (1)
 
Join Date: May 2009
Location: Ocala, Florida
Posts: 1,284
Likes: 0
Received 3 Likes on 3 Posts
Default

A J-3 model @ 80" is generally referred to as being a 1/5 th scale Cub. A true accurate 1/5 th scale J-3 would have an 84.8" wingspan. So, at 80" it is really a 19% model, close enough to get called a 1/5 th (20%) scale. Most model kits and ARF's get their scale size number rounded off by the maker and the flyer. This past Monday I had the chance to fly my 1/4 scale J-3 in tandem with another 1/4 scale J-3. My Cub is actually 24% (100" w.s.) and the other was a full 1/4 scale, 25% (106" w.s.). Parked on the ground together or in the air flying together you couldn't tell the 24% from the 25%. Close enough...so the 80" is called a 1/5 th scale.
Old 06-02-2016, 06:02 AM
  #5  
LSP972
Senior Member
Thread Starter
My Feedback: (13)
 
Join Date: Dec 2001
Location: Zachary, LA
Posts: 4,749
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by 52larry52
The O.S. 52 will fly it once in the air, however the Saito 70 will get you in the air with less effort especially off grass. I would use the Saito 70 on this plane. I have an 80" H-9 J-3 with a Saito 65 and it is very nice combo. I also have two other 80" size Cubs with 2 stroke O.S. 46 FX engines and they do fly well but the Saito 65 powered one is better. Scale like flights off a grass runway is what I do with my Cubs.
Okay, that makes sense. I'll throw the Saito 72 on the model.

Thanks.

.
Old 06-14-2016, 06:42 AM
  #6  
LSP972
Senior Member
Thread Starter
My Feedback: (13)
 
Join Date: Dec 2001
Location: Zachary, LA
Posts: 4,749
Likes: 0
Received 1 Like on 1 Post
Default

That ARF kit has some really nice pieces/parts... except for the engine mount. You have to CLAMP the engine, instead of drilling the mount for four engine bolts. I tried to work with that, and just am not happy with it at all. I've got the model 2/3 done, and now have to completely redo the firewall to accept a better engine mount that I can actually bolt the engine to.

Which means I have basically lost interest in this airplane. I've boxed it back up and set it aside, and am about to start the GP Super Skybolt. After it, I'll probably get the Sig/Seagull Decathalon ARF which will take the Saito 72 nicely.

I might do the Cub eventually... but not anytime soon.

.
Old 06-14-2016, 12:51 PM
  #7  
althepal88
My Feedback: (31)
 
Join Date: Feb 2009
Location: riverside, CA
Posts: 178
Likes: 0
Received 0 Likes on 0 Posts
Default

I fly mine with the OS 52. Perfect.
Old 06-14-2016, 03:23 PM
  #8  
LSP972
Senior Member
Thread Starter
My Feedback: (13)
 
Join Date: Dec 2001
Location: Zachary, LA
Posts: 4,749
Likes: 0
Received 1 Like on 1 Post
Default

Good to know; thanks for the info.

.
Old 06-17-2016, 06:07 AM
  #9  
Clay Walters
Senior Member
 
Join Date: Jan 2008
Posts: 608
Likes: 0
Received 0 Likes on 0 Posts
Default

My experience with the clamp on mounts has been excellent in the past. But the few times an ARF included a mount I didn't care for or couldn't use with the engine I had I've just doweled the preexisting holes and positioned a mount of my own choosing and redrilled the firewall. Is this a bad approach?
Old 06-17-2016, 05:34 PM
  #10  
52larry52
My Feedback: (1)
 
Join Date: May 2009
Location: Ocala, Florida
Posts: 1,284
Likes: 0
Received 3 Likes on 3 Posts
Default

Clay, Your approach is the same thing that I would do.
Old 06-23-2016, 04:54 PM
  #11  
LSP972
Senior Member
Thread Starter
My Feedback: (13)
 
Join Date: Dec 2001
Location: Zachary, LA
Posts: 4,749
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by Clay Walters
But the few times an ARF included a mount I didn't care for or couldn't use with the engine I had I've just doweled the preexisting holes and positioned a mount of my own choosing and redrilled the firewall. Is this a bad approach?
Nope; that's what I'll do to this model when I eventually get around to finishing it.

.
Old 08-08-2016, 07:17 AM
  #12  
Clay Walters
Senior Member
 
Join Date: Jan 2008
Posts: 608
Likes: 0
Received 0 Likes on 0 Posts
Default

I've been tinkering around assembling one of these and have hit a snag or two. In mounting the struts to the wing the predrilled struts and brackets don't want to line up. Did any of you find it necessary to redrill or grind the corner on the strut so you could align the holes with the brackets?
Old 08-10-2016, 02:59 AM
  #13  
bikerbc
Senior Member
 
Join Date: Jan 2011
Location: SorrentoBritish Columbia, CANADA
Posts: 2,018
Likes: 0
Received 0 Likes on 0 Posts
Default

I have the same ARF but haven't started it yet . I won it a few years ago . I believe the wing struts on this cub are just for show and it can be flowen with out them . my buddy had one and he flew it with out them all the time . so I would not worry to much about the attachments as long as you can make them look okay for sratic display . Check your manual to make sure .
Old 08-11-2016, 12:55 PM
  #14  
bikerbc
Senior Member
 
Join Date: Jan 2011
Location: SorrentoBritish Columbia, CANADA
Posts: 2,018
Likes: 0
Received 0 Likes on 0 Posts
Default

Sorry I am wrong ... I went and looked at the on line manual and the wing struts must be used or you risk wing failure . I apologise for the bum steer , I know for sure my buddy got away with out them , just lucky I guess . Anyway it looks much more like a Cub with them anyway.
Old 08-11-2016, 08:17 PM
  #15  
52larry52
My Feedback: (1)
 
Join Date: May 2009
Location: Ocala, Florida
Posts: 1,284
Likes: 0
Received 3 Likes on 3 Posts
Default

bikerbc, You must have the current Hanger-9 80" J-3 Cub #HAN4000 with a 2 piece wing using a wing tube. It will also have wing struts with jury struts and a scale looking main gear. I have the older Hanger-9 J-3 Cub #HAN1500 with a 1 piece wing, no jury struts and an aluminum dural type main gear. The older one that I have (HAN1500) does not need the wing struts to fly. The manual states "The struts are for aesthetics only.", "They are not a structural member of the airframe." . So, is it possible that your buddy that flew without the struts has the older version or is he as you state "just lucky"?
Old 08-13-2016, 12:37 PM
  #16  
bikerbc
Senior Member
 
Join Date: Jan 2011
Location: SorrentoBritish Columbia, CANADA
Posts: 2,018
Likes: 0
Received 0 Likes on 0 Posts
Default

Larry I don't know which one I have but I have had it for about 5 yrs . I won it along with a set of floats but haven't gotten around to putting it together. I got my information from an online manual . After being a Cub knowitall I thought I better check and make sure I am not passing out bad information that could cause the loss of someone's plane . And sure enough I was . Thank you for the information about the older version of the 80" Cub . I don't feel quite as bad now .The reason I haven't put mine together is that I am flying a GP fabric covered cub . Its a little bit bigger but almost the same thing . That Cub has taught me a lot about flying and even more about gluing broken planes back together .
Old 07-19-2018, 07:05 PM
  #17  
shopper24hr
 
Join Date: Jun 2009
Location: Bremerton, WA
Posts: 13
Likes: 0
Received 0 Likes on 0 Posts
Default

I don't know if this thread is still active or not. I've recently acquired a completed J-3 Cub. At the same time, It came with a Saito FA60T Twin. The airplane has a Magnum 52 4C installed. But the twin sounds so much better. Will this airplane fly well on the twin?
Old 07-20-2018, 06:21 AM
  #18  
althepal88
My Feedback: (31)
 
Join Date: Feb 2009
Location: riverside, CA
Posts: 178
Likes: 0
Received 0 Likes on 0 Posts
Default

It will be perfect. It will fly and sound just right. Don't expect 3D. You will have to dive for a loop, just tlike the full size.
Old 07-20-2018, 08:43 PM
  #19  
shopper24hr
 
Join Date: Jun 2009
Location: Bremerton, WA
Posts: 13
Likes: 0
Received 0 Likes on 0 Posts
Default

Thank you for getting back to me. I'm extremely glad to hear that the Saito twin will fly the plane well. I can't wait to get the plane in the air with the twin. This will be my first airplane with a twin. I've heard a bunch of them at the field, but this will be mine! Thanks again.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.