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Baby Birdy

Old 11-15-2012, 04:29 PM
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sensei
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Default Baby Birdy

Does anyone have or know of a place I can purchase plans for a Baby Birdy.

Thanks, Bob
Old 11-15-2012, 04:52 PM
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skaliwag
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Default RE: Baby Birdy

Baby birdie plan in .jpg
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Old 11-15-2012, 05:04 PM
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combatpigg
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Default RE: Baby Birdy

Such a good flying plane with classic looks.
Global did a great job of engineering the kit to make it easy to build. As someone who didn't have much experience building RC planes with this much style, the kit was an education for me.
Old 11-15-2012, 05:11 PM
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sensei
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Default RE: Baby Birdy


ORIGINAL: skaliwag

Baby birdie plan in .jpg
Thank you very much...

Bob
Old 11-15-2012, 05:40 PM
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BobHH
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Default RE: Baby Birdy

Yep, I built one of these sometime ago and put a Cox K&B 15 on it!! Man that thing was a bullet!! A great flying model. I think I still have the plans somewhere!! May build another one of these days!!

Bob Harris
Old 11-15-2012, 06:47 PM
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skaliwag
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Default RE: Baby Birdy

This is mine. She is retired but with fond memories. had a Cox Medallion .09 on mine. 2 micro Futaba's when they were $27 apiece.
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Old 11-15-2012, 07:50 PM
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Default RE: Baby Birdy

Here's mine along with it's siblings. (One now deceased) Norvel .074-powered.
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Old 11-16-2012, 02:41 AM
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Default RE: Baby Birdy

Some 25 or maybe even 30 years ago I built and flew a few of them, but I think it was a Bridi kit or something like that, not sure anymore. All I know for sure is that I really enjoyed flying them back then.

Bob
Old 11-16-2012, 06:04 AM
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combatpigg
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Default RE: Baby Birdy

There's one little detail on several designs like this that I've never been able to do.....the elevator joiner with just a section of dowel. At the very least, cross drill the dowel and the balsa behind the dowel for either a short hunk of wire or a round toothpick. Doing so must add 5 times the amount of strength. Another option is to bend a 1/8" aluminum welding rod into a U shape and inlay it into the elevator halves. The elevator halves on this design are too stubby [not enough chord] for the U shape joiner, but doweling the wood dowel joiner is cheap insurance.
Old 11-16-2012, 03:34 PM
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Default RE: Baby Birdy

Have thought about building one of those, or the Bridie 10. I think I like the baby better. What was it originaly designed for? TD 049? Anyone have a PDF of the plans?

Bill
Old 11-16-2012, 07:22 PM
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Default RE: Baby Birdy

Bill

I have a PDF for a Dirty Birdy 20. Would that help? You could scale it for printing.

andrew
Old 11-16-2012, 08:10 PM
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Default RE: Baby Birdy

How would a guy come up with a appropriate. .PDF file if he were to have say a brand new in box kit of the baby birdie? Do places like Kinko's have giant scanners that scan actual size or something? Todd
Old 11-16-2012, 09:14 PM
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Default RE: Baby Birdy

Some may.

Our county courthouse had a copier that was used to duplicate subdivision plats; I used it to make plan duplicates. With today's digital scanners, you can generate a number of different file types. You might also check with architectual design houses - they need a means to reproduce plats and building plans and would likely be willing to digitize plans for you.
Old 11-16-2012, 10:26 PM
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Default RE: Baby Birdy

Kinkos should be able to do it..
Old 11-17-2012, 03:12 AM
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Default RE: Baby Birdy

I have the Birde 10 built, and going to build my Baby Birde soon.

Patch's (my shadow) has been waiting for me to bring out the birde, for her to play with!

Here's a PDF of the Birde 10

Pat
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Old 11-17-2012, 05:04 AM
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Default RE: Baby Birdy

There's one little detail on several designs like this that I've never been able to do.....the elevator joiner with just a section of dowel.
After having that little detail snap in flight on my .25 size Miss Los Angeles I made a new one out of ply and then wrapped it with carbon tow. It seems fine now.
Old 11-17-2012, 10:58 AM
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Default RE: Baby Birdy


ORIGINAL: vicman

There's one little detail on several designs like this that I've never been able to do.....the elevator joiner with just a section of dowel.
After having that little detail snap in flight on my .25 size Miss Los Angeles I made a new one out of ply and then wrapped it with carbon tow. It seems fine now.
Yep, anything you can do to add torsional strength in that spot. Figure that the elevator push rod can only directly drive the elevator half that it is connected to and then you place all your faith in a short hunk of 1/8" dowel to take care of the other half with no other support..?
Even if it doesn't fail, there is a good chance that both elevator halves wont deflect evenly when the plane is thrashing around at flying speed.
Old 11-17-2012, 11:05 AM
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Default RE: Baby Birdy

Mine was actually buiit using the dowel. It works, but I've never done another that way since.
Old 11-17-2012, 11:14 AM
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Default RE: Baby Birdy

I must be the odd man out, I've been using the dowels for 30 years and have yet to have one snap. Sometimes I will fit a slightly larger one and sand the top and bottom to fit. I find with a good seal on the elevator not a lot of deflection is usually needed anyway. But I don't fly at "CP" speed.
Old 11-17-2012, 11:28 AM
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Default RE: Baby Birdy

I don't fly at "CP" speed.
[>:]Me either
Old 11-17-2012, 11:30 AM
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Default RE: Baby Birdy

"CP" speeds will magnify the weaknesses in ANY design. That's why speedfreaks tend to be fast builders and even faster learners.
Old 11-17-2012, 11:30 AM
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Default RE: Baby Birdy


ORIGINAL: hllywdb

I must be the odd man out, I've been using the dowels for 30 years and have yet to have one snap.......
You just aren't trying hard enough.
Old 11-17-2012, 11:36 AM
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Default RE: Baby Birdy

I liked his old signature. "if you don't fold a wing now and then, you are building too heavy.
Old 11-17-2012, 02:11 PM
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Default RE: Baby Birdy

ORIGINAL: rcguy59

Here's mine along with it's siblings. (One now deceased) Norvel .074-powered.
Hey, that's funny, I built one back in 1989 and it was covered in the same metallic green MonoKote!

My only complaint with that plane was the airfoil. I didn't care for the partial flat bottomed airfoil that they called "semi-symmetrical" or all the washout. It made for very poor inverted performance. I've always wanted to build another with a full symmetrical airfoil. It would be a great little airplane!

Dave
Old 11-17-2012, 03:19 PM
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Default RE: Baby Birdy

I agree 100% about the airfoil. With modern, lightweight airborne gear, there's no need for any camber.

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