Building a scale 1/4 scale Super Cub from Balsa J3 kit
12-12-2014, 07:37 PM
#377
Thread Starter
Leroy
12-12-2014, 07:59 PM
#380
Thread Starter
Leroy
12-13-2014, 02:55 AM
#381
Leroy I have found that as you say the framing goes quicly, it's all the detailing that takes the majority of the time to do. Are you doing a full cockpit? That will be awesome 
I will be fallowing what you do as when I do the recover I will scale my cub out, not as much as for competing but just to have a really nice cub. We have a growing get together we hold a couple times a year called Cubs and cosines. It is a gathering of cub flyers and other high wing planes. We do a pot luck lunch and have a good time flying.
Question, will your controll links be hiden in the wings?
TB
I will be fallowing what you do as when I do the recover I will scale my cub out, not as much as for competing but just to have a really nice cub. We have a growing get together we hold a couple times a year called Cubs and cosines. It is a gathering of cub flyers and other high wing planes. We do a pot luck lunch and have a good time flying.
Question, will your controll links be hiden in the wings?
TB
12-13-2014, 10:06 AM
#382
Thread Starter
Leroy I have found that as you say the framing goes quicly, it's all the detailing that takes the majority of the time to do. Are you doing a full cockpit? That will be awesome
I will be fallowing what you do as when I do the recover I will scale my cub out, not as much as for competing but just to have a really nice cub. We have a growing get together we hold a couple times a year called Cubs and cosines. It is a gathering of cub flyers and other high wing planes. We do a pot luck lunch and have a good time flying.
Question, will your controll links be hiden in the wings?
TB
I will be fallowing what you do as when I do the recover I will scale my cub out, not as much as for competing but just to have a really nice cub. We have a growing get together we hold a couple times a year called Cubs and cosines. It is a gathering of cub flyers and other high wing planes. We do a pot luck lunch and have a good time flying.
Question, will your controll links be hiden in the wings?
TB
As far as wing linkage, I hope to keep it scale, the thickness of both flaps and aileron leading edges will make it challenging , ailerons have horns and exterior push pull cables which will be push rods with one being a dummy, the flap control is internal but I think I can get it in there and hope 109 in. oz. servo can handle it.
Leroy
12-13-2014, 10:29 AM
#383
The best muffler that I have found for the DLE 30 is from Mile High RC. It is very quiet when running a 19x8 prop. I have two of them. They pass the noise test with no concerns and they are inexpensive. I just comunicated with Mike from Mile High and although this DLE 30 pitts muffler is not listed on his site, he does have them. It is the same style as the "DLE 20 pitts muffler". Make sure you order the all tubular pitts DLE30 type not the one shown on his site for the DLE30/EME35
I have one of the wrap around pitts style mufflers I wanted to use but there a re a few issues. First one is that the can hits the firewall, not a total problem as I could adjust the firewall a bit to make it fit. Also the exhaust tubes on the bottom as well. If I knew it would hit I would have adjusted the firewall when I built it in. It hits due to the height of the firewall and how high up the engine is on it.
I looked at the mufflers on Mile Highs web site. I have one of the single pipe smoke styles he sells on another plane, it's very similar in size to the stock DLE 30 muffler. I would however be interested in knowing the dimensions of the non-smoke one he has on his site (out of stock right now). It appears to be a bit thinner, maybe that one would fit inside.
Leroy, by the way I followed your lead and put the little "house shaped" gussets in the fuselage to beef up support in that area. Thanks for the idea.
12-13-2014, 11:15 AM
#385
My Feedback: (11)
Hey Leroy,
Have you looked into rotary drive for your wing controls? I've got that setup for my build, everything is internal, and I plan on just dummying up the hinge details on the outside. The plane I'm modeling has different mechanisms from what you're showing, but it would work fine for yours too.
Jeff
Have you looked into rotary drive for your wing controls? I've got that setup for my build, everything is internal, and I plan on just dummying up the hinge details on the outside. The plane I'm modeling has different mechanisms from what you're showing, but it would work fine for yours too.
Jeff
Morning Tony, it's 9:30 AM here. Yes I'm doing the full cockpit, I think it's possible without adding much weight, I really enjoy doing all the small details, getting all the nomenclature is the hardest. I have clear and white decal film and most of the pictures to size and copy of panels but my computer skills are limited. I have a friend with a printing and sign business who may be able to help me.
As far as wing linkage, I hope to keep it scale, the thickness of both flaps and aileron leading edges will make it challenging , ailerons have horns and exterior push pull cables which will be push rods with one being a dummy, the flap control is internal but I think I can get it in there and hope 109 in. oz. servo can handle it.
Leroy
As far as wing linkage, I hope to keep it scale, the thickness of both flaps and aileron leading edges will make it challenging , ailerons have horns and exterior push pull cables which will be push rods with one being a dummy, the flap control is internal but I think I can get it in there and hope 109 in. oz. servo can handle it.
Leroy
12-13-2014, 02:27 PM
#386
Thread Starter
Todd a lot of those mufflers cans are quite large and you have to radius the bottom of the fire wall, if the muffler I have coming has a to large a can for my application I will cut the back off and weld a plate to it. With any luck I won't have to do that, most wrap around cans will fit under the carb. using the standard stand offs.
Leroy
Leroy
12-13-2014, 02:45 PM
#387
Thread Starter
John_M_ I hope your right, you can also put a bell crank in there and use it to compound the force from the servo, a straight un equal pivot arm will do the same thing. I will test the setup before the covering goes on. As Jeff said, a rotary drive may be a good option. One thing I will do is mock up a profile to see how much throw I can get with what I have in mind, like you said it's working out things that take time as well as all the small details, many don't have a clue what goes into all of this.
I don't know what a pilot protector is but that lever is a nice piece of work, makes me think of the hinges I have to make, I'm saving them for last.
Leroy
I don't know what a pilot protector is but that lever is a nice piece of work, makes me think of the hinges I have to make, I'm saving them for last.
Leroy
12-13-2014, 02:53 PM
#388
Thread Starter
Jeff there are many options for doing this, problem is I haven't used anything but the standard methods, the whole thing about the rotary drive is interesting, can you show pictures of yours to give me an idea of how they work. I have an idea, just have never seen a good example of it.
Leroy
Leroy
12-13-2014, 06:49 PM
#392
Join Date: Sep 2006
Location: The Sunshine state, when it's not raining!
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It is a semi stand alone, part of a telemetry recorder from http://www.eagletreesystems.com/. So far I really like the telemetry for initially seeing what everything is doing and knowing all is good. I run with engine temps, rpm, airspeed, and throttle position. After a flight I download to the laptop and see what is going on during that flight. After getting everything running perfect and a couple consistent flight recordings I remove it for the next model. Of course if I think something is going on I can reinstall it. The Big Pitts will have a system full time.
And I don't want one on the radio, I may be tempted to look at it. There is a receiver that my spotter could watch for me if I wanted.
And I don't want one on the radio, I may be tempted to look at it. There is a receiver that my spotter could watch for me if I wanted.
12-14-2014, 11:51 AM
#395
My Feedback: (11)
Hi Leroy,
I haven't even started framing up my wings yet, so there's really nothing to show. You can have a look at the site www.irfmachineworks.com for all the info you'll need.
Jeff
I haven't even started framing up my wings yet, so there's really nothing to show. You can have a look at the site www.irfmachineworks.com for all the info you'll need.
Jeff
12-14-2014, 02:08 PM
#397
Join Date: Sep 2006
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Leroy, I used those RDS controls on a 60 size Corsair for the flaps. Although I found them a bit of a PITA to start with, once I figured it out I loved them.
