HpH 304CZ / C - HpH 304CZ / C

The HpH 304CZ and HpH 304C are single-seat gliders from the Czech manufacturer HpH Sailplanes from Kutná Hora . The gliding indices are 110 (CZ) and 104 (C).

HpH 304CZ

HpH 304CZ
HpH 304 CZ Flugsportgruppe Grimming 01.jpg
A glass wing 304, the original model of the HpH 304CZ
Type: Glider
Design country:

Czech RepublicCzech Republic Czech Republic

Manufacturer:

HpH Sailplanes Ltd.

First flight:

May 10, 1980 (glass wing 304)

story

After the bankruptcy of Glasflügel Segelflugzeugbau in 1982 and the resulting end to the production of the Glasflügel 304 , HpH Sailplanes took over the shapes of the aircraft and began producing it again in the mid-1990s under the name HpH 304CZ. Since then, the 304 has been produced in four versions.

construction

The HpH 304CZ, which mainly consisted of fiber composites , was initially only offered with a 15 meter span, but later also with 17.44 meters as the HpH 304CZ-17 . The aircraft has flaps coupled with the trailing edge rotary flaps typical of glass wings , which are used as landing aids. The parallelogram control on the stick is also typical for glass wing models. [1] The 304 has a T- tail unit with dampened elevator , a two-point landing gear, whereby the front can be retracted. The one-piece hood can be opened to the front and takes the instrument panel with it. In contrast to other types of gliders of that time, a nose coupling was not dispensed with, so there were two different couplings for aircraft towing and winch launch . Later winglets were also installed to improve flight characteristics. The aircraft flies in the FAI 15m class

Technical specifications

Parameter Dating HpH 304CZ (-17) [2]
crew 1
Long 6,45 m
span 15 m (17,43 m)
height 1,36 m
Wing area 9,88 m² (10,68 m²)
Wing extension 22,78 (28,44)
Profile HQ 010-16-42
Glide ratio 44 (approx. 47) at 116 km / h
Minor Sink 0,56 m/s bei 60 km/h
Leather massage 235 kg
max. Starting mass 450 kg
Water ballast 115 l
Wing loading 30,8–45,55 kg/m²
Maximum speed (v NE ) 250 km / h

HpH 304C Wasp

HpH 304C Wasp
Type: Glider
Design country:

Czech RepublicCzech Republic Czech Republic

Manufacturer:

HpH Sailplanes Ltd.

Commissioning:

2001

Production time:

since 2001

construction

The HpH 304C Wasp was designed for the standard class based on the HpH304CZ. The big change here was the abandonment of flaps and the use of two-tier Schempp-Hirth airbrakes extending on the top of the wing. Otherwise the aircraft remained largely the same as the 304CZ.

Technical specifications

Parameter Dating HpH 304C [3]
crew 1
Long 6,45 m
span 15 m
height 1,36 m
Wing area 9,88 m²
Wing extension 22,78
Wing profile HQ 010-16-42
Glide ratio 43 at 116 km / h
Minor Sink 0,57 m/s bei 77 km/h
Leather massage 235 kg
max. Starting mass 450 kg
Water ballast 115 l
Wing loading 30,8–45,45 kg/m²
Maximum speed (v NE ) 250 km / h

See also

Individual evidence

  1. Armin K .: Die Glasflügel 304. In: www.segelflug.de. Retrieved September 14, 2020 .
  2. Glass wing 304 technical data. Retrieved September 11, 2020 .
  3. HpH 304C Wasp. Retrieved September 11, 2020 .