HpH Glasflügel 304-S

Glasflügel  304CZ
Richard Johnson Flight test of the 304C
and Pilots impressions by Dean Carswell.
click on this link or image below to view

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http://www.wingsandwheels.com/Johnson test.htm


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304CZ-17 ser#37  owned by Chuck Zabinski
Photo image by Glenn Holden (304C ser#38)


In correspondence between George Applebay of Applebay Aviation in Moriarty New Mexico and Jaroslav Potsmeil of HPH Ltd., George made the following observation regarding the 304CZ produced by HPH, Ltd.
Quote: "I have always been impressed by the complete line of Glasflugel designs.  Many years ago I became familiar with some of your (HPH, Ltd.) fine model gliders as they were donated for display by Schempp/Hirth and others to our National Soaring Museum at Elmira, New York.  It was with great interest that I first read of your establishing production of the full sized 304cz.  We have had numerous 304CZ's in our shop for repairs these past two years.  I have never witnessed finer workmanship on any other manufacturers aircraft than is apparent on your ships.  Even the 20 year old ships that were built at Glasflugel, including the original H304, are not as well finished as the 304 series which you produce.  I recommend your series as being the best quality ship, regardless of price, of any glider currently being manufactured in Europe."
George Applebay knows what he is talking about. George Applebay has been involved in soaring for forty six years and constructed Stan Hall's CherokeeII and was the designer manufacturer of the Chiricahua, Mescalero, Zuni and Zia gliders. He is currently working on the design and manufacture of a two place motor glider and has one of the most respected repair facilities in the United States. George has also been inducted into the Soaring Hall of Fame.



With unmatched quality standards equal or better than the competitors and including many of the same features of the 304CZ the NEW HpH Glasflügel 304C was introduced at  the European air exposition "AERO 2001" in Friedrichshafen this past April. The 304C is based on the already very successful 304CZ but in a simplified STANDARD Class version without camber changing flaps. The 304C incorporates upper wing surface spoilers for simplified construction and ease of operation, lower empty weight and new winglet and new wingtip design. With the 304C you can expect competitive performance equal or better to that of the Discus, ASW24 or other current standard class designs plus that special Glasflügel handling and feel unmatched by other designs.

Images from the 2001 SSA Convention


US Standard Airworthiness certificate is approved
for the Glasflügel  304C , 304CZ
and 304CZ-17 Sailplanes.
THE NEW 304C Standard Class
First 304C in Sweden

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The first 304C arrived in Sweden in April. It was bought by the Älvsbyn Gliding Club in the north of Sweden (above the Arctic Circle). I guess this is the most northern flying 304. The Club is very happy with it and it is the most popular glider in the club (they also operate ASW20, LS3, DG-505 and Vivat). They wrote to me: "for 2/3 of the price we got 90% of the performance of a ASW28/LS8/Discus".

New 304C Standard Class sailplanes now making themselves known in in racing circles around the world!
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Glenn Holden's  304C Ser#38 at the Labor Day weekend Soarfest and 304 owners get-together
held in Youngsville Pa. August 31st.-Sept 2nd. 2002
Will flying a new
Glasflügel 304C or 304CZ make you a contest winner or a champion? Of course not...but...will it let you fly to the top of your ability and give you the performance to let you win?
Most Certainly!

After flying in only his second ever contest (Region 6 South at Caesar Creek, Waynesville, OH)
Glenn had this to say of the 304C.
"The club hosted a great contest, and I had a blast, especially on Friday, since I won the Standard Class that day. I flew with a lot of "new glass" in this and a previous contest.  In both, I was able to consistently out-climb all of the new hot designs from Germany rather easily.  In cruise, there was little noticeable difference up to about 75 or 80 knots.  Beyond that, and the new designs had the advantage.  However, it wasn't a huge difference.  After Friday's task, which was flown in the blue and in a pack of sailplanes, I had several pilots comment that I had to be pleased with the way this ship runs. I was and still am!"

Glasflügel 304C
Glasflügel 304C is full series production by HPH Ltd.
TECHNICAL DATA
Wings
Span                            15,00 m
Wing area                     9,90 m2
Aspect ratio                      22,80
Wing airfoil          HQ 014-1642
Fuselage
Length                            6,45 m
Height                            1,36 m
Weight
Empty weight                  235 kg
Max. take off weight     450 kg
Water ballast capacity   115 l
Min. wingloading          30,80 kg/m2
Max. wingloading         45,45 kg/m2
Performance
Best gliding ratio
at 450 kg and 116 km/h               L/D 42,5
Minimum sink rate
at 305 kg and 77 km/h                0,57 m/s
Speeds
Minimum speed
            at  305 kg           60 km/h
           at  450 kg           73 km/h
Maximum speed                         250 km/h
Note: this data is not binding, for information only

(for 304C Options price list please follow this link)

COBRA TRAILERS
options and prices

Many items other manufacturers charge additional for are included in
the 304CZ and 304-C base price
AT NO EXTRA CHARGE:

Provided in basic 304CZ price:

  • Instrument panel cut-outs to buyers specifications
  • Pre-Wired cable harness for normal equipment(includes adding simple cables from instrument panel to accessory locations in battery and baggage area
  • Cruise/Climb switch on flap control for Flight Computer switch - over
  • Mylar control seals on all control surfaces
  • Internal "S" seals on ailerons, elevator, additional flexible rubber and vinyl control rod seals
  • Contest and Registration (N-Numbers)
    applied in paint or at the customers choice, Vinyl decals at no addition charge
  • Forward hinged MECAPLEX Canopy with emergency canopy jettison mechanisms
  • Canopy vent window and vent window airscoop, Canopy defogger vents, adjustable instrument panel mounted cockpit ventilators
  • Parallelogram control stick
  • In-Flight adjustable Seatback
  • In-Flight Adjustable Headrest
  • In-Flight adjustable Rudder pedals
  • Internally tail mounted VHF Antenna
  • 500x5 TOST Wheel and Brake
  • 210x65 Pneumatic Tail wheel
  • Seat Cushions and interior upholstery
  • Main wing Pin and assembly tool storage bag
  • Automatic control hook-up of ALL controls

General Information and operating limits
15 Meter configuration

All data and information are not binding and subject to change.

WING:
Span............................15.00 m .......................49.21 ft.
Area.............................9.88 m2 .................106.35 sq.ft.
Aspect ratio..........................................................22.78
FUSELAGE:
Length..............................6.45 m ..........................21.16 ft.
Width................................0.62 m ...........................2.04 ft.
Height...............................1.36 m ............................4.46 ft.
WEIGHTS
Empty weight......................235 kg ..................518.00 lb.
Maximum cockpit load .......135 kg ..................297.62 lb.
Maximum water ballast.......115 kg ..................253.53 lb.
Maximum take off weight....450 kg ..................992.07 lb.
Maximum wing load...........45.55 kg.m2 ..........9.33 lb.ft.
GENERAL
5.00 x 5 main wheel
210 x 65 tail wheel
changeable water ballast bags

AIRSPEEDS
Maximum permitted speed........250km/h .......155.35 mph
Stalling speed
@310kg.......60km/h......683 lb.........37.30 mph
@450kg........73km/h.....992 lb.........45.36 mph

PERFORMANCE (15 Meter)
Minimum sink speed max L/D maximum
at weight ........Speed...........Sink
310 kg........77 km/h ........0.56 m/s
683 lb.........48 mph ..........1.83 f/s
@ 96 k/h.....60 mph.......43/1

at weight ......Speed...........Sink
450 kg........  93 k/h ..........0.68 m/s
992 lb.........58 mph ...........2.23 f/s
@ 116 k/h.....72 mph.....44/1

Note:
Factory performance calculation
for the 304CZ 17.43M configuration
L/D max about 46.7/1

The attached Polar calculations were complete by Lisa Goodman, owner of ser#20
Using 17.4 meter curve the polar is a=+1.92 b=-3.02 c=+1.71
Using 15 meter curve the polar is a=+1.06 b=-1.04 c=+0.66
This is conservative since this test did not have turbulators installed.
Click on text below to open PDF
(this takes a minute to open)
Adobe Acrobat required

Jochen Ewald  304CZ tandem.jpg (24931 bytes)
Jochen Ewald Photo
304CZ-17 and 304CZ 15 meter with winglets in flight over Zbraslavice Airfield

Photo copyright - Jochen Ewald

*Prices are FOB Czech Factory
All Shipping, optional equipment, accessories and taxes are additional. 
Komet and Cobra Trailers are available

Producer:
HPH Ltd.
Caslavska 126

P.O. Box 112
CZ-28401 Kutna Hora
Czech Republic

USA Representative:
WINGS AND WHEELS Soaring Supplies
2049 Shadyside Road
Lakewood, NY 14750
Telephone (716)763-3213 Fax (716)763-3214
email: tim@wingsandwheels.com

 

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email:  tim@wingsandwheels.com