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Author Topic: dragon fly build  (Read 2327 times)
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cman
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« Reply #50 on: January 28, 2017, 04:19:52 PM »

Well, it's time. Final assembly day!

The first two pics show the plywood tabs I built into all wings for easy assembly and the keyway I added to the head to keep it from spinning when the rubber is wound up.

The rest are of the finished model.

Thanks for watching and commenting!

Chris

ps: my wife and I are taking off for a few weeks, maybe the weather will be better when we get back and I'll be able to post how it glides/ flies then.
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OZPAF
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« Reply #51 on: January 28, 2017, 04:44:38 PM »

impressive - well done.

John
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cman
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« Reply #52 on: January 28, 2017, 05:03:29 PM »

Thanks John.
Does it look like the ones you guys have in Australia  Smiley

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OZPAF
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« Reply #53 on: January 28, 2017, 05:05:21 PM »

It sure does even though they are not as big as Mike(ZK AUD) implies, in the NT they are larger Smiley Smiley Smiley

have a good break.

John
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ZK-AUD
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« Reply #54 on: January 28, 2017, 05:14:42 PM »

That's awesome mate.  I'll have to get the plan and make one of these for indoor this winter

Lovely job too!
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MKelly
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« Reply #55 on: January 28, 2017, 07:55:06 PM »

Way cool - look forward to the flight report!
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cvasecuk
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« Reply #56 on: January 29, 2017, 05:37:44 AM »

One of the best "scale" models I've seen. My wife was so impressed that I too have sent for the plan.
Ron
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dputt7
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« Reply #57 on: January 29, 2017, 06:25:56 AM »

   Very inspiring Chris, the crinkled mylar looks brilliant. I started to order the plan when you first started your build only to cancel when the I found out the postage cost. But since seeing your finished model I went ahead and completed my order this morning.  Good luck with the flights. Kudo's
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cman
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« Reply #58 on: January 31, 2017, 05:14:15 PM »

This is for Flyguy if you're still following this thread. These are the birds my dad made from the Cleveland prints.
He doesn't remember how long ago he made them but he remembers them flying good.

There is only one bird in the series and he made a bluejay and a cardinal from the same plan.

Chris
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Flyguy
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« Reply #59 on: January 31, 2017, 09:19:56 PM »

Still here, just getting caught up, enjoyed the thread. Nice pics, thanks! The first one is clearly the Blue Jay, is the second another Jay with an added fin? Doesn't look like the Swallow?

Really hoping to see your dragonfly flying.

A few people commented about what an ugly insect the dragonfly is. OK, so how's about the Butterfly, that's not an ugly insect, would love to see a build of that! I think it's the next most unusual design after the dragonfly. I have to order some plans.
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cman
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« Reply #60 on: January 31, 2017, 11:22:17 PM »

They are both the bluejay. He said he remembers that they needed some kind of vertical stab because the v-tails weren't enough to stabilize them in flight so, he added different fins to each one.

He doesn't remember everything about them it was 20 plus years ago.

I've already thought about how cool you could make the butterfly wings look with tissue over mylar or a printed tissue. The bat, flying fish or the swallow would be pretty neat too!
We'll see.
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Flyguy
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« Reply #61 on: February 01, 2017, 11:59:09 AM »

That makes sense, looking at the designs I was highly suspicious about the no-fin aspect. Both nice looking planes, kudos to your dad.

For the butterfly wings, I really don't like tissue over mylar, seems to defeat the purpose (no dope, no effect of moisture) and I don't see getting anything over simply using thicker mylar. You could then spray the center one transparent color, and go around the edges with maybe another color, and so on. I'll bet a scale builder who is good with spray (camouflage and such) could make some really nice looking butterfly wings with sprayed mylar!
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cman
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« Reply #62 on: May 13, 2017, 08:56:55 PM »

I finally had a nice night to try out the dragonfly.

The first flight had a couple hundred winds and it flew pretty good. I added a little down and right thrust put in 500 winds and it flew better. Put in 700 winds and was able to get the pics and the short video.

I'm using two strands of 3/32" rubber.

I put a half a dozen more flights on it and I think it flew great!!

https://www.youtube.com/watch?v=w6p6cdMBYyY
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Flyguy
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« Reply #63 on: May 13, 2017, 09:59:39 PM »

Wow, spectacular! I've been waiting to see this, looks beautiful in the sky, great photos, and the flying is fantastic, surprising part is that it sounds like you didn't have to do much trimming? How are the two wings set incidence-wise? Really nice pictures and video, nice flight, definitely on my build list now. Kudos to you and your father for keeping alive, and rejuvinating interest in (I've never heard of this plane before!), a cool 30s plane! Larry
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cman
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« Reply #64 on: May 13, 2017, 10:40:30 PM »

Hey Larry, it was nice to get this up and flying.

And you're right other than the little down and right thrust I added it just flew.
I used the incidence shown on the plan and maybe added just a smidge more.
It probably could use a small rudder for more stability but as you can see from the video it wasn't that big a deal. So, I'm going to leave it alone
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OZPAF
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« Reply #65 on: May 14, 2017, 05:04:52 AM »

Absolutely amazing. I would not have expected such a floaty performance from that model. It didn't attract the birds?

John
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Crabby
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« Reply #66 on: May 14, 2017, 01:02:20 PM »

cman, if that's not the damndest thing!
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cman
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« Reply #67 on: May 14, 2017, 04:17:38 PM »

It's Australia sized so the birds were scared!
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OZPAF
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« Reply #68 on: May 14, 2017, 08:02:36 PM »

Our large magpies may have been interested Smiley
Happy Flying
John
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