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May 13, 2015, 02:58 PM
Retired CAD guy
birdofplay's Avatar
I actually maidened my Judi 32" span today and in serious 10mph+ winds !

No rudder either I just taped it still !


It's a lot quicker than the 46" VERSION and it rolls a bunch faster too.

I must get a vid next.
I just forgot to bring my hat cam out to the shop
and then couldn't wait to try it.

Maybe this evening or tomorrow.
I get so specs then too.

I don't think you could ask for a nicer little FW .
It's a great Knock around and have fun machine in ANY size IMHO ! :-)

More l8r

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May 13, 2015, 03:10 PM
skumgummi dave
Looking forward to your video Bob.

May 13, 2015, 03:51 PM
My plans are in my blog
Rusty-Gunn's Avatar
Yup, yup, yup, got to have video.

May I suggest trying out the Jimi Jetstream canopy/fuselage? Its very sreamlined, aerodynamic. Looks cool too. The bottom "fuselage" is doubled (laminated) profile. It should be quite easy to build. See the thread "Jimi Jetstream: prop jet wonder boy."
It uses the Judi wing set. Basically trading canopies.
Jimi Jetstream is one of my favorite designs. It will indeed remove the air drag of Judi's open cockpit design. I think you will like it.
May 13, 2015, 05:08 PM
Retired CAD guy
birdofplay's Avatar
It will eventually be available here ...
(2 min 14 sec)

It's uploading just now.

I kept it short, just wanting to show that it flew, and flew well ! :-)

Be patient, please

I expect this to be offered for $40
It's two full sheets of 6mm depron + the Ply horns.

If you are in a hurry PM me.

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Last edited by birdofplay; May 13, 2015 at 05:30 PM.
May 16, 2015, 09:45 AM
Registered User
builderdude's Avatar
I think I'm going to try building the Judi Seajet for my effort.
We have a lot of small lakes and ponds in the small town I live in, at the various city parks. Perfect for flying a little sea plane.

One modification I am considering is cutting out wing ribs and actually giving it a conventional flat-bottomed airfoil. Not sure if it'll work but I think it will. I've done it before on a depron flying wing.

I've downloaded the plans to my computer, but what size paper do I want that printed on?
I'm probably going to have to take it to a local print shop to print out for me.
I don't read German, so I can't tell what size paper they might be recommending. Thanks.
May 16, 2015, 10:50 AM
Registered User
Do you really? feel the need to improve what has Proven to work well?
IMO it will only prevent it's construction/completion.
May 16, 2015, 10:52 AM
Registered User
builderdude's Avatar
Originally Posted by Bare
Do you really? feel the need to improve what has Proven to work well?
IMO it will only prevent it's construction/completion.
LOL. I do it all the time.
I'm always adding ailerons, flaps, changing dihedrals and airfoils.
Hey, it's depron. It's not like I'm breaking the bank.

I've just never been a big fan of flat-panel airfoils, regardless of if they work. It's just a personal thing with me.

I didn't want to post my depron airplanes that are NOT Judi Jetstream-related so as not to dilute this thread and hijack it.
But I did create a new thread in my blog titled "My Experiments in Depron". Anyone who wants to see how my depron planes look with actual airfoils are welcome to browse or comment.

Please don't misunderstand. I am not trying to lessen the beauty and flying prowess of the original Judi Jetstream.
I am merely customizing it for my own use. This is a hobby, after all. I am "Hobby-izing".
Last edited by builderdude; May 16, 2015 at 11:32 AM.
May 16, 2015, 05:29 PM
My plans are in my blog
Rusty-Gunn's Avatar
Nothing wrong with modifying the airplane to suit one's desires. Enjoyment is where we find it. Or make it.
May 17, 2015, 03:46 PM
skumgummi dave
Well said Rusty!
May 19, 2015, 05:51 AM
Retired CAD guy
birdofplay's Avatar
I figure that if a guy offers an airplane design here then it's basically flyable.
So, I just start with those basics and go for it
without being too fussy about the all the particulars.
That usually means several mods.

Like both of the larger version Judi's needed stiffer or stronger bottoms than the
3mm original. Plus I just like to build in an Ad Lib fashion.

Regardless these Judi's have become my early season favorite for just having fun.

Just Toss in a pac and go for it.
May 23, 2015, 12:40 PM
Retired CAD guy
birdofplay's Avatar
The beautiful morning that I've been waiting for arrived today.
So I headed over to my neighbors pond for some video work
with the Judi Sea Jet 46 and 32" span.

Of course I was immediately met by his Great Dane SAM.
Gerry had been fishing and had a nice bass on line as I walked down to the shore line.
I took his pic with the fish and he released it back into the pond.

Winds were very low to non existent.

Video of Todays pond work at ...
Judi Sea Jet 46" span (4 min 7 sec)

And there is vid of my original Maiden Flight vid on Vimeo
plus a few other vids of the smaller one and the INdoor Combat that you flew last PM
all at ...

I am hoping that this design catches on like the Polaris as it's much easier to build
and I believe that it is more durable and easy to fly.


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Last edited by birdofplay; May 23, 2015 at 04:18 PM.
May 23, 2015, 03:38 PM
skumgummi dave
The pond video was delightful. Looks like ya have a few bugs this time o' the year Bob. That sure is a great flying plane.

May 23, 2015, 04:16 PM
Retired CAD guy
birdofplay's Avatar
Thanks Dave.
Yeah the bugs do tend to hang out near water.
And it's spring time in the Midwest. whatchagonnado ?

I am super delighted with this design.
The big one kinda wallows at times like a 747.

But, it flys really nice and stable with no bad characteristics.
The the 32" span version is a great all around knock about plane too.
It's lots faster and sporty.

These are so easy to build and it's so "DRY" , None of that amphib spray !
Plus all the equipment is so far forward and HIGH off the water
that even "if" water got in it wouldn't be anywhere near the equipment.

Like I said it "COULD" be the next Polaris, if we can just get guy build and fly em.
May 23, 2015, 09:21 PM
Home of "Golf Cart Flying"
pecanpatch's Avatar
I like it! I need one for the fleet of Seaplanes..
Plus...... My wifes name is Judy
May 23, 2015, 09:43 PM
Retired CAD guy
birdofplay's Avatar
You're gonna like it. :-)

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