Bambina

technoid

Well-known member
I've been wanting to build this plane for a long time, so I guess now's the time. Originally a 31 inch wingspan without gear, but I'll upscale it to 80 inches with gear. Just a cute sport plane, right up my alley.

Bambina 01.jpg
 
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I keep lots of versions as I model so I can go back later and a get different version of a part to use. I found a fuselage and wing from two different projects that were just created that would be easy to modify for this plane. So I imported the fuselage and wing in a new file then imported the plan. After resizing the wing to fit the plan I started to resize the fuselage but noticed the size was off, so it looks like I need to do a little work on the plan to fix that. It was a pretty mangled picture of the plan so I guess that's expected. It looks like the fuselage, vstab, and hstab are the same scale but the wing is different. So now I need to go back and fix that.
 
I still haven't done the fixups on the plan but I worked on the wing tonight. It's odd, the plan and the blue-white pictures I seen first are a little bit different. I guess that's typical on these simple little plane projects. But I do like that blue-white color scheme on it. Just something to do.

Bambina 02.jpg
 
Since this plane initially didn't have landing gear I'm trying to decide what type of gear I want on it. The plan has aluminum gear but I'm also considering wing mounted gear. Any thoughts on that? I guess I probably should put aluminum gear like the plan.
 
Well one more picture for now. I just finished shaping the hstab and vstab.

Hey give me your thoughts on something. Look at the picture of the plane in my first post, notice the length of the nose from the wing to the front of the fuselage. Then look at the same thing on this plan. Is it me or is the nose on the plan "a lot" longer than it looks like in the picture in the first post.

EDIT: Maybe this quote from a build thread using this plan answers my question.

I did notice a few mistakes in the plan - e.g. there is no allowance in the wing rib layout for the 1.6mm balsa covering on the leading edge. The built model differs quite a bit from the plan as well - maybe because builder and designer were on different continents!

Bambina 04.jpg
 
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Since this plane initially didn't have landing gear I'm trying to decide what type of gear I want on it. The plan has aluminum gear but I'm also considering wing mounted gear. Any thoughts on that? I guess I probably should put aluminum gear like the plan.
HMMMMM....personally, I don`t like the gear on the plane in the position, putting them on the wing would look a lot better, with that being said, you could spread them out, thus, making ground handling a lot better....THEN, you could make them retractable, making it look a lot better in the air, which is what a nice sport plane needs. Of coarse you`d be deviating from the planes plans, just call it artistic freedom., retractable or not, I think they`d look better on the wing, It`s all up to you. Regarding the nose, your right, it does look shorter in the first post, which looks real nice.
 
HMMMMM....personally, I don`t like the gear on the plane in the position, putting them on the wing would look a lot better, with that being said, you could spread them out, thus, making ground handling a lot better....THEN, you could make them retractable, making it look a lot better in the air, which is what a nice sport plane needs. Of coarse you`d be deviating from the planes plans, just call it artistic freedom., retractable or not, I think they`d look better on the wing, It`s all up to you. Regarding the nose, your right, it does look shorter in the first post, which looks real nice.
My initial plan was to put the landing gear on the wings, like you I think they'd look nicer there. My post was to get some support for that, so thanks. And right now I plan to shorten the nose. To me it looks way too long in the plans. And from that build thread comment I can see the builder didn't draw the plans. He said the two people were in different continents.

Another thing I noticed. In the picture in my first post the vstab doesn't have the dorsal fin, and since I like the plane in the first picture so well I'm planning to leave the dorsal fin off the vstab. Got a thought on that one?
 
Another thing I noticed. In the picture in my first post the vstab doesn't have the dorsal fin, and since I like the plane in the first picture so well I'm planning to leave the dorsal fin off the vstab. Got a thought on that one?
I DO like it without the dorsal fin, but I don`t think it would look bad with one, It`s a personnel choice.
 
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@uncle twist Take a look at this and see how it looks to you. I did some tweaks to the plan and reduced the length of the nose. I moved the nose "one" segment back on the plan and darkened the color of all the parts so you can see them better (just for the picture).

I also removed the aluminum gear from the plan and moved the tire back some and added the wing gear strut so you can see what it will look like with wing gear.

So does the nose look right to you now? And is the gear placed about right. Thanks for your help.

Bambina 07.jpg
 
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@uncle twist Take a look at this and see how it looks to you. I did some tweaks to the plan and reduced the length of the nose. I moved the nose "one" segment back on the plan and darkened the color of all the parts so you can see them better (just for the picture).

I also removed the aluminum gear from the plan and moved the tire back some and added the wing gear strut so you can see what it will look like with wing gear.

So does the nose look right to you now? And is the gear placed about right. Thanks for your help.

View attachment 143365
As far as the gear goes, I would move them back to about the middle of the next two vertical lines in the wing section, AND THEN angle them back just a few degrees (not so they`re straight up/down, just A LITTLE closer to it.). Regarding the nose, length wise, it looks great, but I think you should maintain the radius that I see in the chin.
 
As far as the gear goes, I would move them back to about the middle of the next two vertical lines in the wing section, AND THEN angle them back just a few degrees (not so they`re straight up/down, just A LITTLE closer to it.). Regarding the nose, length wise, it looks great, but I think you should maintain the radius that I see in the chin.
Okay thanks, I'll play with the gear some. Here's the Scat Cat gear. I like the angle but they're definitely further back. The area below the chin, if I'm right, shows the rounding of that area to get the nose perfectly round for the way they did the motor. But I'll adjust it if I need too once I start shaping the fuselage.

Scat Plan 01.jpg
 
I moved the gear further back and reduced the angle of the strut. I loaded the plan for the Scat Cat in Photoshop and measured the angle of the gear, it was 20 degrees. Which was several degrees less than it was originally. I definitely think it looks better.

I realized why the bottom of the fuselage on the plan is lower than the plane. I grabbed the vertex of the first three segments and pulled them back to the first segment and then recentered them. That keeps the front of the fuselage the same size as before, which makes the bottom of the fuselage appear raised up some. But that's because the front has moved back in the same vertical position. Hopefully that makes sense. After I see the fuselage without the plan I'll probably need to tweak the bottom curve as it goes up a little.

Bambina 08.jpg
 
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I have a dental appointment for a deep cleaning today and I'm not looking forward to it.

On a different note the plane seems to be ruffed in pretty well, so I guess it's time to go back and start rounding out the parts. I may need to tweak the wingtips some, the plan doesn't seem to have the same wingtips as the blue pictures of it, the original plane. And I'll probably need to adjust the fuselage width to match the bulkheads in the plan.
 
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