1989 - first flight of Gryf ULM-1

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Jet Shark
© Gryf design

When 300km/hour is not enough, there are some ideas to create jet-powered aircraft using Shark design, so You could fly 400-500 km/hour according to used engine.

Price-induction jet looks nice for that purposes :
At Take Off Power, you can get up to 255daN, consuming 80kg/h of fuel for the DGEN 380 and 330daN with 100kg/h fuel consumption for the DGEN 390.

www.price-induction.com

of course - this kind of aircraft cannot be called Ultralight, although its empty weight could be very similar

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information about Shark first prototype max speeds

20th December 2009, Shark prototype OK - OUR 01 reached with propeller Woodcomp 3000 2W :

first flight: 275/312 GPS = average 293,5
second flight: 280/312 = 296
thirdt flight: 275/314 = 294,5
average : 293,5/296/294,5 = 294,7 km/hour

( Shark.aero sro information from test flights in Senica airport )

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1989 - first flight of Gryf ULM-1

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1989 - first flight of Gryf ULM-1

Written by Jaroslav Dostál

Monday, 25 July 2011 18:02

!!WARN_FL1!!

1989 : First flight of our first ultralight aircraft Gryf ULM-1 was done with engine Astro 600 of Pavel Uhlíř by Let Kunovice test pilot Sklenář.
Zálet našeho prvního ultralightu - Gryfa provedl zalétávač Letu Kunovice Sklenář ještě s motorem Astro 600 Pavla Uhlíře a spolilery příčného řízení, zvolenými kvůli úspoře hmotnosti. Prototyp vážil 137 kg.
Tehdy jsme s letounem presentovaným pod našim zaměstnavatelem LET Kunovice nemohli sami létat - ačkoliv existoval předpis pro stavbu UL letadel, neexistovala možnost jak na něj získat pilotní průkaz.