RE: Sig cub choice!  
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[Poll]

Sig cub choice!
1/6 Scale
  17% (12)
1/5 Scale
  82% (55)


Total Votes : 67
(last vote on : 7/27/2008 2:12:59 AM)
(Poll will run till: -- )
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RE: Sig cub choice! - 6/13/2008 6:44:25 PM   
sqeakalong


 

Posts: 181
Joined: 2/8/2008
From: Interlochen, MI, USA
Status: offline 		I have to put my vote in for the 1/6 Sig Cub. In this day of "gotta have it now" it's a refreshing build with a high satisfaction feeling when finished. One can purchase a fiberglass cowl and scale landing gear for it, too. A very nice flying model that can look real nice when finished. If you're a "builder" then this is the kit you want. It's plenty big enough to enjoy in a scale flight mode. Happy building!

(in reply to SunDevilPilot)
       Post #: 26

RE: Sig cub choice! - 6/13/2008 7:10:53 PM   
iron eagel



Posts: 1264
Joined: 7/15/2004
From: Middleboro, MA, USA
Status: online
quote:

ORIGINAL: SFMMcoasters

I would really appreciate it if somebody could answer a few questions for me, who has either kit.

I would like info for both planes, 1/5 and 1/6-
-Does it have the aileron servos mounted inside the wing with hatches so just the arm comes out?
-What tail wheel assembly method does it come with?
-What comes with the landing gear as far as scale looks?

Also, does anybody have any pictures of the 1/6 to offer? Ive seen plenty of the 1/5.


I have built 2 of the 1/6th cubs and have both the 1/5 and 1/4 scale cub kits yet to be built.
As far as the 1/6th cub it is as all have said a builders kit, the fuselage sides are built as a truss, it takes about 6 hrs to cut and build each side. A week of evenings are about what it takes to builld the fuselage. The wings take some time to build as there is a lot pieces to them as well as sanding and shaping the LE. The ailerons were driven by by a singe servo and bell crank setups in my kits but I modified them for dual servos with hatches using Hitech HS 81 servos. The tail wheel and main landing gear as supplied with the kit are made up of wire, I made my own up for the mains and used an off the shelf tailwheel asb by dubro If I reacal properly. To make the landing gear look scale is not all that hard but is still nothing more than wire with some balsa glued to it, and takes a beating. The 1/6th scale kit is designed to be flow with a .30 size engine and does very well with an OS la .40 which is what I used in my last one.

The 1/5 scale needs a larger motor and to be honest I would not even try to fly it on a la .40 it weighs 7 lbs and can get a lot heavier quickly if you add a lot of scal details so I would recomend at least a .50 size engine an OS 55 AX would fit real nice inverted and is what I am planning to use in mine, if not a 70 4 stroke I allready have. The kit is a very fast build and lots of nice detailing parts can be bought for it up to a set of fully functional shock absorbing scale landing gear.

Either way both SIG kits can be built to a nice scale look, with the 1/6 th one being a lot more work.

I will try to look when I get home tonight to see if I have pictures of the 1/6th scale builds kicking around. If not I think I still have the plans so I can give you an idea of what it looks like to build, if you are real curious you can go to: http://airfieldmodels.com/information_source/how_to_articles_for_model_builders/construction/build_warren_truss_fuselage_sides/04.htm
That will give you an idea of how the 1/6th scale Sig cub is built.


_____________________________

The Wrights never crashed, they only had hard landings. I 've had some hard landings myself. AMA EAA AOPA revver #185

(in reply to SFMMcoasters)
       Post #: 27

RE: Sig cub choice! - 6/18/2008 3:39:43 PM   
BuzzBomber



Posts: 2580
Joined: 12/17/2002
From: Newton, NJ, USA
Status: offline 		I don't want to hijack the thread, but I have a question. Did any of you 1/6th scale Cub builders use a dual aileron servo setup? I am currently working out that detail on mine, and plan on epoxying small hardwood blocks to the front and rear spars so that I can screw a plywood hatch/servo mount plate to them, flush with the wing bottom at mid-aileron. If anyone has a more elegant or simpler solution, I'd love to hear about it.

_____________________________

Matt Smith
If you're not having fun with this hobby, you're missing the point.

(in reply to iron eagel)
       Post #: 28

RE: Sig cub choice! - 6/18/2008 7:10:44 PM   
iron eagel



Posts: 1264
Joined: 7/15/2004
From: Middleboro, MA, USA
Status: online 		Buzz,
That is basicly how I installed servos in mine using 1/16 plywood and spruce glued to the ribs rather than the spar so I could mount the servo close to the forward spar.

I used HS81's installed sidways and mounted to the hatch, so the servo was inside of the wing. They are mounded as far forward as possible and just fit with no or little room to spare. By doing this only the push rod is ouside of the wing and makes it much cleaner aerodynamicly speaking, I also installed farings that cover the servo arm and pushrod as it exits the hatch. But you don't have to beat yourself up as bad as I did doing all the extra work and just mount a standard servo upright like a lot of planes do.

By using the dual servos and with them being half the weight of standard servos I cut down on the weight a bit, and was able to set up the diferential (more up than down aileron) to help the adverse yaw issue a bit. You do not have to go nuts with the support for the hatch because any force is spread out over a large area (the length of the rib) and three small screws on each side of the hatch works well.

_____________________________

The Wrights never crashed, they only had hard landings. I 've had some hard landings myself. AMA EAA AOPA revver #185

(in reply to BuzzBomber)
       Post #: 29

RE: Sig cub choice! - 6/18/2008 7:41:49 PM   
skyraider71


 

Posts: 252
Joined: 5/6/2008
From: mount washington, KY, USA
Status: offline 		I'm considering the 1/6 scale cub myself, it will fit my budget and
workshop. I feel up to the challenge of building it. My only issue
with the 1/5 scale kit is the cowl, it looks too big. Maybe a glass
one would be better. I wonder if a .30 or .40 4-stroke would work
on the 1/6 scale.


_____________________________

Busting props, and shredding Mono-cote since 1999

(in reply to SunDevilPilot)
       Post #: 30

RE: Sig cub choice! - 6/18/2008 8:18:50 PM   
sqeakalong


 

Posts: 181
Joined: 2/8/2008
From: Interlochen, MI, USA
Status: offline 		You DO realize now that all of us 1/6 scale Sig J-3 builders are "sticking" together on this issue? .....(oh, brother...)

Skyraider: I'm going to install an O.S. .52 FS on mine. Have seen them fly, and fly well, with .25's, .28's (two-stroke) and .40 FS. One must be careful to not overpower the J-3 Cub, grasshopper, no Sabre wings on landing allowed!!

(in reply to skyraider71)
       Post #: 31

RE: Sig cub choice! - 6/18/2008 11:13:54 PM   
Stormovic


 

Posts: 209
Joined: 1/18/2003
From: Morris, AL, USA
Status: offline 		I think the .52 will be a bit too much for the 1/6 cub. I have the 5th scale one powered with a .52 and it hauls it with authority. You probably will have cowl issues with a .52 on the small Cub also. Put a .30 size 4 stroke on it and it will be all you need. I've built 3 of the 6th scale Sig Cubs and 2 of the 1/4 scale ones and one 5th scale Cub. The 5th scale Cub is in my opinion the grand champion of all the Cub kits ever produced.

(in reply to sqeakalong)
       Post #: 32

RE: Sig cub choice! - 6/19/2008 1:11:33 AM   
sqeakalong


 

Posts: 181
Joined: 2/8/2008
From: Interlochen, MI, USA
Status: offline 		Stormovic: Was intending to use the .52 FS with floats installed on the Cub. Plenty of power to get off the water with the extra weight of the floats and scale detail I plan to install. What do you think?

BTW: lived in Cullman, Alabama for about eight years and really liked the people down there. (Did NOT like the tornado's though) Younger daughter and her family still live outside Cullman. ROLL TIDE!!

Soft landings,

Joe

(in reply to Stormovic)
       Post #: 33

RE: Sig cub choice! - 6/19/2008 12:21:27 PM   
Stormovic


 

Posts: 209
Joined: 1/18/2003
From: Morris, AL, USA
Status: offline 		If you are using floats then the .52 will surely work fine. Only trouble you might run into is fitting the .52 into the cowl. The .52 just barely fit my 5th scale cub at least length wise. You might have to modify the firewall (move it back some) to fit the eng in. If you haven't got a Cub yet then go for a 5th scale instead. Absolutely the best fitting parts of any kit I have ever built.

(in reply to sqeakalong)
       Post #: 34

RE: Sig cub choice! - 6/19/2008 1:56:18 PM   
sqeakalong


 

Posts: 181
Joined: 2/8/2008
From: Interlochen, MI, USA
Status: offline 		Hey, Storm:

Already have the 1/6 on the shelf. I agree on your firewall modification idea..it'll have to be moved back a bit. Plan on interior detail with pilot and passenger and other scale type additions so the engine will be able to handle this extra weight. And, I just like the size of the 1/6 and the fact that I have to build it stick fashion. We old farts got weaned on those "sticks" you know...

Soft landings.

Joe

(in reply to Stormovic)
       Post #: 35

RE: Sig cub choice! - 6/19/2008 9:49:48 PM   
Stormovic


 

Posts: 209
Joined: 1/18/2003
From: Morris, AL, USA
Status: offline 		Go for it. I have another 6th scale on the shelf too. I am about to build the Goldberg kit as soon as I receive a new .52 from ebay. Never built this version but there are a few things I like about it like the formed windshield and supposedly quick build. I also have a couple of Top flite Cubs on the shelf that look like real good kits. The Top flite kits look like a combination of Sig and Goldberg construction techniques. Good luck on the 6th scale Cub. Safest airplane ever designed. It'll just barely kill ya.

(in reply to sqeakalong)
       Post #: 36

RE: Sig cub choice! - 6/19/2008 11:05:01 PM   
sqeakalong


 

Posts: 181
Joined: 2/8/2008
From: Interlochen, MI, USA
Status: offline 		Built a Goldberg Cub for a fella some time ago and it was a fairly quick build..lots of ply. Let's see I think I put a Quadra 62 on it....(JUST KIDDING!!!! ) Actually I think he put a O.S. .45 on it. Flew real nice. Have fun on your build and enjoy plenty of soft landings. Joe

(in reply to Stormovic)
       Post #: 37

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