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Old Sep 18, 2008, 10:55 PM
Crash Master
Gene Bond's Avatar
Indianapolis, IN
Joined Sep 2001
16,632 Posts
Hey BEC, you know you want to come over to the Dark Side Once a Foamie-guy, always a foamie-guy You'll wonder why you didn't start sooner
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Old Sep 18, 2008, 11:02 PM
BEC
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Auburn, Washington USA
Joined Jan 2001
12,937 Posts
Well, Gene...... I have two Blu-Babies flying now and have been working with some students who are going to be making their own planes from one of those bundles of PBIII from Lowes in Renton......

It has begun. But I still like laser-cut wood!
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Old Sep 18, 2008, 11:59 PM
Park Jet Guru
jetset44's Avatar
Seattle, WA
Joined Jun 2002
5,589 Posts
Your spar design looks great, Pat. I never thought of using sq CF, good idea.

I do have a concern, though. The reason I put a swept spar on the horizontal is so that the spar would straddle across the width of the nacelle to provide good lateral support to the horizontal tail. It had to be swept to reach the wide part of the nacelle, as a straight spar misses almost all of it. Otherwise, I was concerned that the horiz tail may not have enough lateral support (remember this part sits directly in the prop blast so it takes a beating). Does it feel strong enough to you? If not, you might want to put some foam, balsa, or fiberglass bracing on the bottom at the intersection of the horiz and vert tail to strengthen it.
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Old Sep 19, 2008, 12:00 AM
Park Jet Guru
jetset44's Avatar
Seattle, WA
Joined Jun 2002
5,589 Posts
Gene - Yeah, I've been trying to convert Bernard to the dark foamy side for years, and it looks like he's taken the first baby step with his Blu-Babies. He's almost there...one more foamy and he'll be hooked!
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Old Sep 19, 2008, 12:27 AM
Pusher jets rule!
crxmanpat's Avatar
Mesa, AZ
Joined Jan 2006
17,085 Posts
Steve,

After messing around with it some tonight, I think you're right. I'll be adding CF sticks along the leading edges of the horizontal stab too for extra support.

I got the motor firewall installed and hooked up the wiring in preparation for finishing up the nacelle. Man am I glad I checked the motor one more time before closing it up. For some reason, my motor (brand new) now does not seem to want to run properly. I think that when I bent the wires back to put them through the firewall, one of them may have broken loose.

And just to check what was bad, I hooked my ESC to another motor, and it worked fine. I then hooked the suspect motor to another ESC, and it still did not work. It acts like it's off on the timing. I'll have top open it up and take a look.

In the meantime I'm pulling a motor from another plane that is down for repairs right now. I hope to be gluing everything together tomorrow night (I wanted to do it tonight, oh well).

Pat
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Old Sep 19, 2008, 12:13 PM
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Joined Aug 2008
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Great looking aircrraft.

Since I don't have my phlatprinter yet, I'm interested in a kit... do we know when the kit will be available?

Jason
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Old Sep 19, 2008, 12:44 PM
X-15 Jockey
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Joined Oct 2006
2,439 Posts
That looks great, I keep thinking about a sea dart, maybe a ski-less version would work....

Frank
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Old Sep 19, 2008, 01:59 PM
Park Jet Guru
jetset44's Avatar
Seattle, WA
Joined Jun 2002
5,589 Posts
Quote:
Originally Posted by SWblade
Great looking aircrraft.

Since I don't have my phlatprinter yet, I'm interested in a kit... do we know when the kit will be available?

Jason
Hard to say for sure, but I'd guess the kits will available in about a month.
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Old Sep 19, 2008, 08:06 PM
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lake flyer's Avatar
Joined Nov 2005
4,404 Posts
There were two versions of the sea dart , one had two skis , the other only had one , one was better than two .
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Old Sep 20, 2008, 01:14 AM
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Tomas Dunker's Avatar
Sweden
Joined Mar 2006
148 Posts
Thank you Steve for excellent thread!

This sommer I tryed for the first time to fly from water. A BluBaby with floats, see movies:
http://www.tomasdunker.se/mfilm/blub...floats_HiQ.wmv
http://www.tomasdunker.se/mfilm/blub...loats2_hiq.wmv

My 2nd seaplane will absolutly be Polaris! Thank's Steve!

/Tomas Dunker
Sweden
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Old Sep 20, 2008, 01:29 AM
Park Jet Guru
jetset44's Avatar
Seattle, WA
Joined Jun 2002
5,589 Posts
You're welcome for the plans, Tomas. Post pics if you build a Polaris!

Hey, is that my VTO design in your avatar?

Steve
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Old Sep 20, 2008, 09:07 AM
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Tomas Dunker's Avatar
Sweden
Joined Mar 2006
148 Posts
Quote:
Originally Posted by jetset44
Hey, is that my VTO design in your avatar?
Steve
Yes, thats right! VTO was my wery first Depron and brushless model.
Ċhh! So you are the designer!
Here some better picture on my VTO.
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Last edited by Tomas Dunker; Sep 25, 2008 at 01:04 PM.
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Old Sep 20, 2008, 12:50 PM
Registered User
Türkiye
Joined Jun 2007
203 Posts
Steve, are the auxiliary ply spars really necessary? Your Gripen's wings are almost the same dimension, and it flew OK only with the 6mm main carbon spar.
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Old Sep 20, 2008, 01:01 PM
Pusher jets rule!
crxmanpat's Avatar
Mesa, AZ
Joined Jan 2006
17,085 Posts
KaanX,

I highly recommend them. I have noticed on my other depron profile planes that over time the leading edges start to warp, even with a main spar in place. Having these spars in should eliminate that.

Pat
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Old Sep 20, 2008, 01:18 PM
Registered User
Türkiye
Joined Jun 2007
203 Posts
My depron planes never last that long
OK, I won't be lazy and add them...
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