what is it?
HpH 304 is a family of sailplanes ranging from a single-seat composite 15 metre Class to a two-place 20 metre Open Class manufactured by the Czech company HpH Ltd. The sailplane was derived from a glider made by Glasflügel between 1980 and 1982 that was put back in production by HpH and who have modified it substantially and developed new models since.
base stats
Bars compare against all aircraft: 3,500 km/h, 20,000 km, 850 seats; size and number built on a log scale up to 640 t (An-225) and 45,000 built (Cessna 172).
fun facts
- First flew 46 years ago, in 1980.
- Top speed is 1.9× a car on the Dutch motorway (130 km/h).
- Wingspan of 15 m: about 3 cars parked nose to tail.
no engine: No engine: it glides on rising air.
spec sheet
- first flight
- 1980-05-10
- number built
- 65
- role
- 15 metre class sailplane
- origin
- 🇩🇪 Germany
- makers
- Glasflügel
- engines
- none (glider)
- passengers
- 1
- length
- 6.5 m
- wingspan
- 15 m
- height
- 1.4 m
- max take-off weight
- 450 kg
- top speed
- 250 km/h
- range
- —
Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.
Sources: Wikidata Q1529455, Wikipedia: HpH 304 (CC BY-SA 4.0).Updated 2026-10-24.