p3arljam

My Feedback: (5)

Thanks for the help.

DanIsGo

Hi guys, I'm looking to make this my first giant scale plane. My plan is to go with the sig 1/5 anniversary cub but I'm trying to decide whether to go with the saito fg-11 or fg-14. From what I see the 11 would be the proper engine according to sig but I thought I'd check and see if anybody had experience with what was best. Thanks

acdii

Go with the 14. The 11 is adequate, but you will appreciate the extra power of the 14, and it will help with balancing. The SIG kit builds light, but both of mine were a bit on the tail heavy side( next reply is all about my misadventure today). I run the FG-11 in a SIG T-clips, which is a smaller plane, and run the Saito 100 in the Cub. Its a bit over powered, takes 10' to leave the ground, but oh boy can it fly good. I cruise it around at half throttle and the tail stays sing. The T-clips though, the FG-11 is just enough power for it, but not enough for unlimited vertical, I think it would be a bit lacking power in the Cub. The FG-14 should be plenty of power as I believe it is made from the .72 case, which I have in my Something Extra, and I know that engine will haul a Cub around nicely.

acdii

Well.... 30% MAC is NOT correct for the balance point for the stagger wing. Oh boy was it tail heavy. I touch up and the nose heads for the sky. I fought it for 7 minutes, and I tell you what, everything that could cause me to crash it, lined up perfectly. I got it off the ground, trimmed it out as best I could, and after I got the hang of it, brought it around to land, was all lined up and some IDIOT drove a bobcat across the runway! Then was moving behind me with it and then over to the garbage pile at the end of the lot. So not only did he spoil what would have been a halfway OK landing, with very little chance of major breakage, he was distracting me from getting control of the plane. THEN wouldn't you know it, a dog shows up and is sniffing my legs. I have 2 Collies and a coule cats, so of course this dog was interested.

By this time the plane is so out in left field, and then the wind changed direction from west to north, and started picking up that I was having difficulty trying to get it back to the right end of the field for another landing attempt. Then wouldn't you know it, something went wrong with an aileron, it started to roll hard left and I had very little control with the right stick, but rudder was working to help correct it, but then it snapped around and went behind a tree.

I was so fricking close to landing it, but some moron who should not have been there buggered it all up for me. Oh boy was it tail heavy! The club president had a word with the owner of the company who leases the land to the club about his workers interrupting someone who is flying since the crash was a direct result of the guy driving across the end of the runway while I was trying to land.

The plane thankfully didn't land too hard, is repairable, but the lower wings will most likely have to be uncovered to be repaired. Both top wings are intact, only fuse damage is the expected right side cockpit where the wing attaches. The cowl got munched too, but it can be repaired. If anything I can remove the bolts for the lower wing, cover the holes and just fly it as a regular Cub. I had a feeling it would be tail heavy, but not as bad as it was. 30% is not correct, I'm betting 23% is the correct setting, which is what I should have had it at, but that required 8 ounces of lead. It just seemed like an awful lot of weight considering my other Cub has zero dead weight in it. This one with just the top wings mounted balances exactly the same as my other one. Ahh well it was my first attempt at something completely different. I could probably have the repairs done to the Fuse tonight, but the lower wings will take a few days, so not taking it to the fly in. It sure looked good when it was flying straight and level, and the approach on final was looking good as it was dead into the wind.

To make up for it though I put 3 more flights on my other Cub, and what a blast that one is to fly. Holy crap does it do tight loops. It also does decent knife edges, and inverted passes. I then flew the T-Clips, which has always been a PITA taking off, but both flights today it flew straight down the runway on take off. I am getting confident flying that one, did an inverted pass 10' off the ground. Then a few passes with the wing tipped towards me at a 45*. A couple times I did a one wheel landing with the Cub, more like a touch and go as I took right off again. If the winds weren't so unpredictable, and coming out of one direction only, I would have practiced the one wheel walk a bit more. Cubs are pretty damne d cool.

52larry52

My Feedback: (1)

kmeyers

There were no Cubs at the field today. Please someone post a Cub pic.
signed jonesenforacub

acdii

http://static.rcgroups.net/forums/at...g?d=1465849901

RagwingFan

My Feedback: (31)

kmeyers

like creepy stuff here. I came across some old pics of Cubs. I was thinking where would be best place to share.

then I see your post. you asked, you shall receive. hopefully this will give you a fix

All Sig 1/4 scale kits. The L-4 conversion, I built for myself (supershrink Coverite/Chevron paints). The red and silver clipped, I built for my friend (21st Century Fabric). The blue and white clipped one of my friends flying buddies (cloth and painted, not sure). Pics are scans of old 35mm. May not be the sharpest image.

Here goes

acdii

Would a 120 Gemini be a good match for a 1/4 scale clipped?

FlyerInOKC

My Feedback: (6)

Nice looking Trio!

RagwingFan

My Feedback: (31)

Thanks OKC

acdii, not familiar with specs on twin 120 for clipped

blue white had a G-38, Red and Silver had a Moki 120 TS, L-4 had a OS 120 FS. 120 FS was plenty for the full wing. If built light, sure the twin would fly it fine. maybe closer to scale. guess would depend on what you are looking for, scale or modern 3D power

Cub Man

My Feedback: (50)

http://www.rcuniverse.com/forum/aero...g-biplane.html This might help you on the cg....

Cub Man

My Feedback: (50)

SO last year I won the Sport Cub at a event. Other then floats I have kept is stock. First time flying with floats and love it. I will be adding a water rudder to it. Just to say it was a had full without one in a slight wind.

liemtran75

I have the H9 1/4 J3 cub and would like to use either the Saito FG21 4 stroke gas or Saito FG30B 4 stroke gas. I like to fly scale, no float at this time. Which would be a better option? Also, would I have to cut up the cowl in order to use either of these option? Thank you in advance for your guidance!!!
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Quigleywins

Started the 1/4 cub last week as always not much to see yet but here are the photos .Its a Sig kit of which I have two ,this is the first.

acdii

The FG-21 is equivalent to the FA 125, so go with that one as its the correct size.

FlyerInOKC

My Feedback: (6)

That looks like a lot to me! I know what it takes to get the pieces to meet up tight.

RagwingFan

My Feedback: (31)

Can't beat a Sig Cub. I have built 3 full wing versions as well as a Clipped. all 1/4 sc. Great flyers/kits.

cubcrasher

My Feedback: (6)

Hey Gents, anybody got any photos of a fiberglass specialties CG-3 cowling. It"s the one that
would convert a Goldberg Cub to a Super Cub. What I am wondering is does it have the light
made into the bottom of the cowling like the E-Flite 25 Super Cub.

Hey Quiglley, you"ll like that Sig kit.

FlyerInOKC

My Feedback: (6)

Email them if they have a picture they will send it to you.

cubcrasher

My Feedback: (6)

Da closed til the 25th, was kinda wanting to see one before then.

RagwingFan

My Feedback: (31)

couple pics from web and mine. I do have one myself. it was a little tight with windshield area and rear edge of cowl. That is with an OS 46 AX. I had one years ago on Great Planes Cubs 40 and 60-90 sizes as well as a 1/4 sc Sig, much better fit as far as space etc and working around engine. Maybe just the Goldberg Cub gives fitment issues. it does have the molded area which you modify to place a light.

cubcrasher

My Feedback: (6)

Thanks Ragwing
I've always wanted to do a Super Cub with a Goldberg kit.
I got the landing gear for the E-Flite Cub in the mail today. Looks
like it will work fine. I was wondering if their windshield would work
but they are on backorder. I think it would look better without the humps in the
plastic. I picked up one of the old Goldberg kits with the blue inked plans
as well.

RagwingFan

My Feedback: (31)

you are welcome. not sure of windshield. I just left it clear so "eyebrows" did not stand out.I have had several Cubs from Goldberg, GP to Sig. Goldberg is a great durable airframe. I did add stringers down side of fuse to get more of a scale look. I also changed the outline of elevators adding counter balances. use bracing is opposite on SC vs J-3 if you are adding minor scale details. you would invert the dowels they show for cabin bracing details. hope makes sense

cubcrasher

My Feedback: (6)

I like those ideas. When I get around to building it I may post a few pictures. I
don't see how these guys do a complete build thread too time consuming for
me. Plus who wants to see another Cub build.