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How do they do that????
Looking at the cover of Model Aviation October 2007 and wonder how do they get covering like that. I am bascially a scratch builder and I can cover pretty good, but I can't compete with that :(. I would really like to see that done [8D].
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RE: How do they do that????
In one word... Practice.
Those older guys have been covering since they were teenagers. You'll get there in no time. By the way, you are looking at the COVER of MA. That's where the best of the best go. Don't try to compare yourself to that yet. |
RE: How do they do that????
Sure would like to see that done.
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RE: How do they do that????
I'm still wondering how big that plane is[>:]
or how those tabs work |
RE: How do they do that????
ORIGINAL: seemefly_1 I'm still wondering how big that plane is[>:] or how those tabs work Those are booster tabs and actually drive the ailerons or help drive them depending. It's an excellent way to only use a couple of aileron servos instead of a line of them along each wing. Driving the tab in the opposite direction you want the aileron to go moves the aileron in the direction you want it to do. Aero does the work for you. One servo to drive the tab. Amazing why it's not done by everyone. The idea that it isn't as accurate seems to be a joke looking at that airplane do what it can do, which is what every other one of 'em can do. He just does it with less equipment, weight, and expense. Go figure. |
RE: How do they do that????
ORIGINAL: goirish Looking at the cover of Model Aviation October 2007 and wonder how do they get covering like that. I am bascially a scratch builder and I can cover pretty good, but I can't compete with that :(. I would really like to see that done [8D]. Actually you could do that just like they do. Go to a sign shop that does vinyl, which most of them do nowadays. And have 'em run you off some templates if they don't have machines that do Monokote. Give them the measurements and a plan. They do the hard part. Then you clean off the dining room floor and take 30 or 40 rolls of Monokote and have at it. Iron on ain't so hard. Have you ever seen one of the Control Line Precision Aerobatics models that have even more intricate designs? They're painted. And have to not only be gorgeous but light. And light really matters. Really. And the Goodyear Pylon racers of some years back looked as good. Actually often looked better on average because they actually didn't have the weight problem as bad. But that big sucker does look good doesn't it. Iron on or not. |
RE: How do they do that????
ORIGINAL: seemefly_1 I'm still wondering how big that plane is[>:] or how those tabs work a 200cc engine. In other words it's HUGE. |
RE: How do they do that????
ORIGINAL: da Rock ORIGINAL: seemefly_1 I'm still wondering how big that plane is[>:] or how those tabs work Those are booster tabs and actually drive the ailerons or help drive them depending. It's an excellent way to only use a couple of aileron servos instead of a line of them along each wing. Driving the tab in the opposite direction you want the aileron to go moves the aileron in the direction you want it to do. Aero does the work for you. One servo to drive the tab. Amazing why it's not done by everyone. The idea that it isn't as accurate seems to be a joke looking at that airplane do what it can do, which is what every other one of 'em can do. He just does it with less equipment, weight, and expense. Go figure. Bill, AMa 4720 WACO Brotherhood #1 |
RE: How do they do that????
ORIGINAL: seemefly_1 I'm still wondering how big that plane is[>:] or how those tabs work Bill, AMA 4720 WACO Brotherhood #1 |
RE: How do they do that????
There's a difference between "Hard" and "Complicated"
That covering job wouldn't be "harder" than any other - it would just TAKE a long time. Personally, I like to find that happy-medium between "easy" and "good-looking" |
RE: How do they do that????
thank you I understand now
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RE: How do they do that????
I would say that covering job is actually a graphics kit custom made for that plane. The plane probably started out blue and white and then decals were applied. Just my .02
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RE: How do they do that????
I think you are right ROBCAR
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RE: How do they do that????
You can go to a local sign company that cuts vinyl graphics and give them a sheet of covering (along with the design you want) and they will cut it for you.
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RE: How do they do that????
Are you sure it's not glassed, masked and painted?
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RE: How do they do that????
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Here is a D&L Designs 80" Edge that I built from a short kit. I found the Red Bull logo online (I asked Red Bull, but they said they couldn't give it to me). My wife has a computerized paper cutter. I used its software to trace the outline of the figure and letters. I cut out cardstock templates that I traced on to Monokote. I resized the bull and lettering for the different spots (easy to do in the computer). I used the TLAR method to size them based on photos from airliners.net.
I think it came out pretty good. Kerry |
RE: How do they do that????
ORIGINAL: ROBCAR I would say that covering job is actually a graphics kit custom made for that plane. The plane probably started out blue and white and then decals were applied. Just my .02 You mean, like the guy went to a graphics place and got them to make the design up for him? Like to a sign shop? |
RE: How do they do that????
ORIGINAL: Charlie P. Are you sure it's not glassed, masked and painted? I got $20 says it's not painted. Almost always, when someone nowadays has the skill to paint, they use a gun or airbrush, and will almost surely do some fade somewhere. And does anybody glass something that large nowadays? For that matter, any size? As for how large the airplane is? If you got the magazine cover, open it and read the writeup. The magazine says it's a 40%. Hey, about the graphics on the sucker.......... check this out http://www.riversiderc.com/page5/page40/page40.html Graphics look familiar? What does that tell ya'. |
RE: How do they do that????
DaRock---How do you find all that stuff? I'm amazed.
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RE: How do they do that????
1 Attachment(s)
ORIGINAL: goirish Looking at the cover of Model Aviation October 2007 and wonder how do they get covering like that. I am bascially a scratch builder and I can cover pretty good, but I can't compete with that :(. I would really like to see that done [8D]. Same way you get photos uploaded, Practice!:D Just pulling your chain! |
RE: How do they do that????
ORIGINAL: goirish DaRock---How do you find all that stuff? I'm amazed. And think this forum stuff is great fun. Which it is, ain't it........... |
RE: How do they do that????
Does anyone have a picture, or a sketch, of these power tabs showing how they work?
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RE: How do they do that????
ORIGINAL: ED STEFAN Does anyone have a picture, or a sketch, of these power tabs showing how they work? Bill, AMA 4720 WACO Brotherhood #1 |
RE: How do they do that????
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RE: How do they do that????
1 Attachment(s)
ORIGINAL: ED STEFAN Does anyone have a picture, or a sketch, of these power tabs showing how they work? Here is a side view with everything neutral. |
RE: How do they do that????
1 Attachment(s)
And with the aileron deflected.
The rigid horn on the TE of the wing keeps the boost tab pushrod localized and when the aileron moves, the tab is pushed or pulled in the opposite direction. |
RE: How do they do that????
OK, I see Bruces link is working now, and it's an excellent description. It appears to offer some numbers with it.
In our modeling application, the tab can reduce the force needed to drive any of our surfaces. With the big models those forces can go way beyond what our servo's can give. And we often wind up with 2 or 3 servos, each of which costs big bucks, working just one aileron. Not good economics. And beyond the money, it's a royal pain. The servos have to be sync'ed for one. Installed for another. A royal pain. It's actually amazing that they aren't on every big bird of ours. Guess not many model designers know about them. Or maybe the servo mfg's are paying hush money. ;) |
RE: How do they do that????
I wonder if there's a practical size limit to using boost tabs.
By that I mean, when is a control surface (and by inference the plane) too small to make boost tabs not worth it. Would a 1/4 scale be too small? 1/5? 1/6? What about small gassers? or even down to 1.20 or smaller birds? |
RE: How do they do that????
Thanks Bruce/da Rock,
Man you guys have very sharp eyes to have spotted that on the cover. |
RE: How do they do that????
ORIGINAL: ED STEFAN Thanks Bruce/da Rock, Man you guys have very sharp eyes to have spotted that on the cover. When you've been building and drawing your own for awhile, you realize that the details are what makes the differences. And you look for 'em like they were worth money to you. |
RE: How do they do that????
ORIGINAL: vmsguy I wonder if there's a practical size limit to using boost tabs. By that I mean, when is a control surface (and by inference the plane) too small to make boost tabs not worth it. Would a 1/4 scale be too small? 1/5? 1/6? What about small gassers? or even down to 1.20 or smaller birds? It's actually fairly simple to establish the value of them for models. With most of our popular, mass produced models, there will be one servo that is strong enough to drive one aileron. When we increase the size of that aileron beyond that requirement, the booster tab makes sense. As for how small is the limit? We got servos for everything up to the big birds. If you can drive all the surfaces with one servo each, that's the boundary. I've never understood why there were and are so many, many big models that have 2, 3, and 4 servos on a tray driving just one rudder. And why so many elevators have 4 or ailerons use 4 or 6. Guess the manufacturers figure they sell more airplanes for 10-15% less to people who don't know there is a way the big bird they're buying could take 6 or 8 less servos. |
RE: How do they do that????
ORIGINAL: da Rock ORIGINAL: vmsguy I wonder if there's a practical size limit to using boost tabs. By that I mean, when is a control surface (and by inference the plane) too small to make boost tabs not worth it. Would a 1/4 scale be too small? 1/5? 1/6? What about small gassers? or even down to 1.20 or smaller birds? It's actually fairly simple to establish the value of them for models. With most of our popular, mass produced models, there will be one servo that is strong enough to drive one aileron. When we increase the size of that aileron beyond that requirement, the booster tab makes sense. As for how small is the limit? We got servos for everything up to the big birds. If you can drive all the surfaces with one servo each, that's the boundary. I've never understood why there were and are so many, many big models that have 2, 3, and 4 servos on a tray driving just one rudder. And why so many elevators have 4 or ailerons use 4 or 6. Guess the manufacturers figure they sell more airplanes for 10-15% less to people who don't know there is a way the big bird they're buying could take 6 or 8 less servos. I was thinking from an aerodynamic perspective. Can a smaller model gain agility with boost tabs without have to increase control surface size? For example, can a big ol' trainer, that should really have a larger rudder area, gain rudder authority by just adding a boost tab to the rudder? Thus eliminating the need for possibly extensive modifications. |
RE: How do they do that????
ORIGINAL: vmsguy ORIGINAL: da Rock ORIGINAL: vmsguy I wonder if there's a practical size limit to using boost tabs. By that I mean, when is a control surface (and by inference the plane) too small to make boost tabs not worth it. Would a 1/4 scale be too small? 1/5? 1/6? What about small gassers? or even down to 1.20 or smaller birds? It's actually fairly simple to establish the value of them for models. With most of our popular, mass produced models, there will be one servo that is strong enough to drive one aileron. When we increase the size of that aileron beyond that requirement, the booster tab makes sense. As for how small is the limit? We got servos for everything up to the big birds. If you can drive all the surfaces with one servo each, that's the boundary. I've never understood why there were and are so many, many big models that have 2, 3, and 4 servos on a tray driving just one rudder. And why so many elevators have 4 or ailerons use 4 or 6. Guess the manufacturers figure they sell more airplanes for 10-15% less to people who don't know there is a way the big bird they're buying could take 6 or 8 less servos. I was thinking from an aerodynamic perspective. Can a smaller model gain agility with boost tabs without have to increase control surface size? For example, can a big ol' trainer, that should really have a larger rudder area, gain rudder authority by just adding a boost tab to the rudder? Thus eliminating the need for possibly extensive modifications. |
RE: How do they do that????
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RE: How do they do that????
They blocked the site
try Flying Giant Roger |
RE: How do they do that????
ORIGINAL: vmsguy I wonder if there's a practical size limit to using boost tabs. By that I mean, when is a control surface (and by inference the plane) too small to make boost tabs not worth it. Would a 1/4 scale be too small? 1/5? 1/6? What about small gassers? or even down to 1.20 or smaller birds? Bill, AMA 4720 WACO Brotherhood #1 |
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