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Dec 28, 2012, 01:01 PM
less sleep more planes
PlayinInTheParK's Avatar
Thread OP
Build Log

FLUID - Aerobat/Ultrabat


Welcome to the" Fluid" i hope you enjoy your ride.
I fly slope ,DS ,thermal ,3D planes, all have there different high's, when on the slope i like my aerobatics a lot ,this plane is designed from many concepts that have been proven to work,and create the plane i want to fly.
The main things taken from other planes for this design are ;
From a DLG i took the construction ,thin penetrating wings ,large flapperons ,(for hand catch landings),and light wing loading.
From a wingeron plane i took the effortless roll and energy.
From a Fishy type plane i took the side area for knife edge flight, (ultrabat ,Yoda !!!).
From the efforts of die hard aerobat designers ,the Mad Cams for crazy fun radical stuff.

I have gone with a totally symmetrical approach ,wing, tail ,fuse ,fin to minimize coupling effect.I have designed the fuse around the inner control workings to keep everything as internal as possible .It's going to be 2m wingspan at around 600grams.

This project has been on the go for 6 months so far,i wanted to finish the fuse mold first before stating this thread .
I only have a very basic drawing of the finished look,things are changing a little as it progresses.
At this point i am cutting wings and tails.
















Pics of the finished mold next
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Dec 28, 2012, 01:23 PM
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Woodstock 1's Avatar
Wow, very cool project Mr. Park ! I like your design brief and solutions, seems very well thought-out - this is going to be great! Congratulations!

Chris
(sub'd)
Dec 28, 2012, 01:33 PM
Registered User
perttime's Avatar
Wow!
This looks ... SHARP

Does it have a name yet? Spade, Spear, Paddle, Pike, Barracuda?

Do you plan to make components or drawings available? (... or encourage everybody to design their own cool things? )
Dec 28, 2012, 01:40 PM
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Woodstock 1's Avatar
Possibly it's been called the "Fluid" ....
Dec 28, 2012, 01:54 PM
Registered User
perttime's Avatar
Quote:
Originally Posted by Woodstock 1
Possibly it's been called the "Fluid" ....
Think so?


I was staring at the photos and forgot all about the thread title
Dec 28, 2012, 02:54 PM
Cliff
16141's Avatar
That looks great Shane. Cant wait to see you flying this at the Knob :
Cliff
Dec 28, 2012, 03:03 PM
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Woodstock 1's Avatar
Quote:
Originally Posted by perttime
Think so?


I was staring at the photos and forgot all about the thread title
I know what you mean !

Chris
Dec 28, 2012, 04:35 PM
Phil.T-tailer
Phil.Taylor's Avatar
Nice work!
thats a good looking shovel there

Phil.
Dec 28, 2012, 05:01 PM
somewhere in South America
ShredAir's Avatar
Shovel? -- Ancient spearhead with whale fluke... : )
I'm looking forward to seeing the wing.

Dieter Mahlein, ShredAir
Dec 28, 2012, 05:13 PM
VTPR & Slope Aerobatics
surfimp's Avatar
Love it!! Very nice!

The that Michael Richter and I collaborated on flew very nicely, aside from some technical issues with the pulley setup for elevator & rudder.

Besides the rudder flips, I was most impressed by its excellent knife edge capability... it tracked perfectly straight, with absolutely no pitch or roll coupling. And despite the apparent lack of sidearea, it hung in there in knife quite well.

The only downside to the fully symmetrical fuselage is that orientation can and occassionally does become an issue, especially in conditions where the sun is in your eyes and you're flying the silhouette. I definitely recommend putting something on one side (top or bottom) of the wing to help identify up from down.

Have fun with this! It looks great. I will really enjoy watching this project evolve!

Steve
Dec 28, 2012, 07:30 PM
gonzalo contreras
gonzalo contrera's Avatar

Whatīs is it?


HI

Ok, is time to erase the concepts, and rewrite new for it... and now the serious lines.. Congs. itīs a new bird on the sky, it remember a bird called Voltij.... but itīs so early to have any conclusion..I see the concept in the Aero Glide, but i think about the landing with these fin.? maybe is time to redisign or resize it and avoid broken tails..

Go ahead, and itīs a good news.

Gonzallo.
Last edited by gonzalo contrera; Dec 28, 2012 at 08:35 PM.
Dec 28, 2012, 10:45 PM
VTPR & Slope Aerobatics
surfimp's Avatar
I can't speak for the Fluid, but with the Aero-Glide: the plane is so light that breakage of the tail was a non-issue. That's part of the whole ultrabat concept; build light and it will be strong enough

Steve
Dec 29, 2012, 05:20 AM
Auzzie built planks
timbuck's Avatar
Great work as always shane. Looking forward to seeing the results. If it's anything like your other builds it will be 2nd to none...
Latest blog entry: More colours
Dec 29, 2012, 07:33 AM
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Woodstock 1's Avatar
Fins that extend below the boom are popular with DLG's and some TD ships, and you don't get many complaints about damage there (OK, I believe DLG's are often caught in the hand, but still)..

Chris
Dec 29, 2012, 12:08 PM
less sleep more planes
PlayinInTheParK's Avatar
Thread OP
Thanks for the good feedback.

The Aero-Glide knife edge ability was truly inspirational Steve ,thanks ,as for
the tail hanging too low ,this will be landing on long grass 99% of the time .What really has me excited is hand catch landings using flaperons to slow it down and the wingerons to keep it on track.
As for the spear/arrow head look .......probably should have called it the spear or arrow.
Here are the mold pics ,little bead filer is poraver ,white gell coat is Rengal SW 10 .Had some exothermic reactions with the plug ,turned out OK.















Small indents near the tail will hold small bits of aluminum to form the tail bearing support


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