A new glider, a new face!
The new HPH 304S is a single seated, flapped,
racing class sailplane. It is offered in a convertible wing
configuration with long and short wingtip extensions allowing
both 15- and 18-meter wingspans. The glider construction allows
assembly of various engine types.
Not simply a face lift of an existing technology,
but the very latest in a long study of what was, until now,
the “State-of-the-Art”.
The wing
The wing was optimized, calculated from ground
up with the help of a research institute and two universities.
It incorporates a new thin 13.2% airfoil that is modified
in order to reduce the influence of insect contamination.
At the root section the wing goes up to 16.4% thickness and
meets the fuselage with a refined transition shape. The wing
has a special planform with elliptical swept leading edge
and special 3D shaped state-of-the-art wingtips, which were
optimized to lower the induced drag of the whole wing. The
trailing edge incorporates a three section flaperon along
its whole length. This configuration brings the pilot friendly
behavior and improved flight characteristics.
The tail
The T-shaped tail combines well-proven design
with the best possible technology. Elevator and rudder are
made with high precision carbon fiber prepreg technology to
achieve low weight while keeping high stiffness. Ending tips
of the stabilizer have a state-of-the-art shape to raise its
efficiency while cutting down the induced drag. Elliptical
planform of the stabilizer is a matter of course. Assemblage
of the horizontal surface with the vertical is a question
of seconds, elevator connects automatically and securing is
done by a single pull pin.
The fuselage
Numerous FEM calculations, break tests and
simulations of impact behavior resulted in a design that can
save life to its pilot. “Roger hook” as a standard
feature for safe jettisoning of the canopy is integrated in
the massive frame. The middle part of the fuselage is primarily
adapted for housing an engine. The motorization program counts
with three different engine systems: self launcher, “turbo”
sustainer and JET engine. The engine bay and place for fuel
tanks are universal for all three systems and are part of
the primary structure. Installation of engine can be easily
done according to customers demand and can also be done additionally.
The cockpit
Comfort in the cockpit has always been one
of the main trademarks of Glasflügel sailplanes. The
safety cockpit of the 304S has been completely redesigned.
Serious design and ergonomic studies have been done to assure
perfect seating and view from the cockpit. Every pilot knows
how important a feeling of comfort and safety is during the
flight. These features were stressed by using materials of
the highest quality. Enjoy the massive carbon-aramid frame,
prestigious and durable leather interior, well-arranged instrument
panel and friendly controls! Every detail has been designed
with a special care, check the control-stick handle, canopy
lock mechanism or the ventilation outlet! Enough space for
elbows and shoulders makes a perfect seating even for taller
and heavier pilots. Custom rearrangements are possible of
course.
The undercarriage
The 304S is equipped with a spring-loaded
and damped landing gear. Double action telescopic frame with
rubber shock absorbers in combination with large 5’’
wheel allows cushion-like landing even on a rough field. A
hydraulic brake guarantees rapid brake action.
The HPH 304S prototype
The new HPH 304S prototype has been flown
in November 2009. Test pilot Ludek Kluger was surprised with
the excellent characteristic of the new glider. He reported
excellent flying quality from the first moment. Testing will
be continued intensively.
Download brochure
Click
here to download the electronic brochure for more information
on the HPH 304S (PDF file, 3.2 MB).
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