=BKB1 sweep is 13 deg.,chord =1.2 m...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 :
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
-modyfied version BKB1-A (with triangular stabilizers is TUMBLE resistend )
=very good idea,simple in realisation !