AIR ATOS Wing - 3axis from a trike wing

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henryk

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The D-Tube and ribs, are built from molds; all carbon and Nomex.

Felix Ruehle built the Exxtacy, (late 90's) before he made the Atos.
The Exxtacy was a good learning platform for Felix , both gliders
are made from carbon and Nomex ; but the Atos is much lighter
and stronger. I know of one Atos, that didn't have a tail, the
pilot got into a shear-line around Denver, and tumbled the glider.
He flew it down and landed unscathed, probably had to relieve
himself afterword ?

I have 2 Exxtacys ; one i fly, and one for parts, if i ever take out
a D-tube.That second Exxtacy, is the airframe i plan to use in my
stand-off scale BKB-1 , with the engine and folding prop.
I'll start a Thread on it ; when i finalize the design.

On those spoilers :
I've had my inside wing , stuck in the core of a 1,500-ft/min
up thermal before ; those spoilers will deal with that amount
of energy, (Quite Well) thank-you.

This is me over Crestline, in 2017 ; just took off, and hadn't
even had time to get into my harness yet :

Bille

PS:
Is it still considered "Foot-launched" ; if i'm running off
the mountain on two fake feet, made of carbon and SS ?

View attachment 89849
=BKB1 sweep is 13 deg.,chord =1.2 m...

-modyfied version BKB1-A (with triangular stabilizers is TUMBLE resistend )


=very good idea,simple in realisation !
 

Bille Floyd

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165
=

BKB1 sweep is 13 deg.,chord =1.2 m...

-modyfied version BKB1-A (with triangular stabilizers is TUMBLE resistend )
...
I'll use your post, when i start the Thread about my project ; i
do not want to wander ,(Off-Topic).

I never flew an Atos glider. When i thermal with my friends
who own the Atos , I can climb in a thermal "With" them
but when we exit the lift ; they pull away from me Fast, like
i'm flying a Paraglider. The Atos , was quite an improvement
over the Exxtacy ; but the builders are proud of that design
with a price-tag of over $ 20-k + !

Bille
 

jedi

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Sahuarita Arizona, Renton Washington, USA
Does anyone on this list have experience with both the three axis and the hang glider version to make comments about the pros and cons of each version?

Takeoff and landing field requirements. Comfort versus performance. Cost, transport and setup. Controlability and flight envelope limitations.
 

Bille Floyd

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-when can we see them ?
I have 8 more weeks of work on my Hobie 21se , (turning it into a
kite-boat, powered by a Paraglider) with an electric reel-out
winch ; when it's done , then ALL my attention gets turned towards
my powered glider project.

So --- it will be sailing, and kiteboarding in South Padre island for winter ;
motor gliding, and soaring , in Moore Idaho, for the summer months.
Does that sound Boring to some ?? LOL

Back On Topic :
This design , using the ATOS wing , is what inspired me to place
a tale on my project ; lots of problems related to pitching-moment
are solved, for using different flap designs.


Bille
 
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Aesquire

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Location
Rochester, NY, USA
Takeoff and landing field requirements. Comfort versus performance. Cost, transport and setup. Controlability and flight envelope limitations.
No experience with the ATOS, but I can answer a few questions based on other machines.

Comfort vs. Performance? Basically the more enclosed, the less fatigue, the more comfort and performance. That costs visibility, setup time, transport effort and weight. Which increases stall speed, mostly.

Transport & setup?
The bare wing fits on a roof rack. In a padded bag. That's the same for all versions.

A basic open trike fits in the back of a minivan, with variation on folding compactness depending on brand & model. ( and again the more pod like, the more room it takes ) At a certain point, a small open trailer is called for.
You'll want indoor storage for wing and trike.

Add more fuselage, add more transportation hassle.

Controlability and flight envelope limitations?
Differences in skill set between weight shift and stick, but speed limitation is still the wing. Control is more than adequate in either case, inverted flight is discouraged. ;)

Takeoff and landing field requirements?
The biggest jump is between Hang Glider versions and anything with wheels & engine. Take off needs are radically different. :) And the Hang glider version needs very little room to land, since you either full stall/brake to a stand up landing, or roll a short distance on a wheels or skid ( depending if it's the triangle bar as Standard on an ATOS, or the supine cage as on an Exxtacy )

Trikes and the "looks like a sailplane" version will need a few hundred feet of good runway, depending on power installed.

Hope that helps, and as Usual PLEASE CORRECT any arrorrrs.
 

jedi

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No experience with the ATOS, but I can answer a few questions based on other machines.
.......
Thanks. That is what I was looking for and your answers agree with my impressions.

Your over all preference?

I like the off airport advantages of the hang glider configurations with a wheel or skid option for conditions where their assistance is needed.
 

Bille Floyd

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Sep 26, 2019
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The PHANTOM , was an Awesome rigid wing ; i don't
"think" it was made as strong as the Atos ?

Anyway -- i have (2) Exxtacys , and not a lot of money
so i'll be using what i have on my project. Now if i ran
into a nice Tandem Atos VQ ,(HA) ; not very likely
with (2) fake legs . LOL

Landing in a small aria, is important to me , and is
why, all the interest, in the Fowler-flap design ;
to use it fully, i'd need , to add a tail.

BIlle

PS : my Exxtacy, was built like a Tank, (strong) , and it's
made for tandem weight ; i could do worst , and i Will be Happy
when finished.
 
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Bille Floyd

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Tha Kasper wing , has a Lot of aria at the tips ,and it help
out for those slow landings ; the Atos E-wing has less tip aria
but has a Way better L/D than the Kasper wing. There is a
trade-Off ; but the Atos will still land in a rather confined
space , (less runway than an sgs 1-26).

Of the two ; i'd go for the Atos. Now the Atos VX tandem glider
will have the over-all aria to do landings like the Kasper-wing
and Still have an awesome glide. The ATOS VX is a larger span
- 46', higher performance glider certified at 550 lbs of payload.



Bille
 

Aesquire

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Location
Rochester, NY, USA
Want to sell one Exxtacy? I'd change it to a powered trike configuration. They are real Unicorns. :)

I still have legs, but the knees are titanium and plastic so I'm no longer planning on using them as landing gear. Prudence has me give up armored melee combat too. Darn it.

And... The last straw, my hang glider got... MIssing. Stolen is the wrong term. It was in a buddy's garage, and the house was repossessed & his illness, my illness, and communication mix ups on timing led to me missing the event. I'm assuming most of the blame, my circus, my monkeys.

So I'm starting from scratch.
 

Bille Floyd

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=NOT exactly !

=BKB1-A (wooden wing ) with AR=10 have L/D =allmost 30 !
(with composites wing will be moore ...)

I was referring to the glider , You posted in the video :
(Kasperwing 'Bird Landing) .

I will really enjoy watching the video , of you landing that
composite BKB1, like the Kasperwing that did the bird landing.
When will it be ready ?

@ Aesquire :
You would be way better off, with a used Atos C model ; i've
seen them as cheap as $4k.


 
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Bille Floyd

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Sep 26, 2019
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=composite BKB1-A wing have the same upper airfoil shape
as alu/sail KASPERWING ultralight=the same property
at >30 deg. VORTEX flow...
And i will enjoy seeing the video of it landing the
same as in the video : "Kasperwing 'Bird Landing"

I think the aluminum tube/sail kasperwing, will handle
a bunch more abuse, than the composite one ?
 

cluttonfred

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