Miksi aiemmin luovuin tuosta MAX3 konptista oli tämä VMaxProbe jolla piti kulkeman 450+ km/t;
http://www.webcamsue.nl/vmax.html
Lars Giertz menetti laskussa koneen hallinnan...syystä tai toisesta.
Göppingen ja Learfan-2100 taas ovat lentäneet hyvin.
http://www.luft46.com/prototyp/go9.html
http://www.museumofflight.org/aircraft/lear-fan-2100
Suurin ero olisi se että MAX3 liikuisi mopuna 200 km/t liussa ja sakkaa 55 km/t..Giertzin kone taas liussa 500 km/t ha sakkausnopeus varmaan 80-100 km/t ?
INSERTTI;
What'll she do??
The top speed (Vmax) of any aircraft depends on two factors: available thrust and flat plate equivalent (drag). It is a simple formula: Speed=((146625 * Propeller Efficiency*Horsepower)/Drag)^.333. The VmaxPROBE's flat plate equivalent(drag) has been very carefully calculated by NASA aerodynamiscist (ret.) Bruce Carmichael, my tireless consultant who keeps me on track. He estimates a drag range of between .34 (optimum laminar flow across nose and flying surfaces and no aerodynamic surprises) to .60 (fully turbulent and no laminar flow). Plugging in numbers of 100 HP, 85% prop efficiency and an FPE of .45 we get 301 mph.
The current 3 km record in the 300 kg FAI class is 213 mph, and in the 500 kg class the record is 277 mph, and the Nemesis should soon have official FAI certification on the 285mph run at OSH.
Although I did not design the VmaxPROBE for the time-to-climb FAI record classification, Bruce has calculated that with 120hp the theoretical 0-3000 m climb could be run in two minutes and 40 seconds and the 0-6000 m in five minutes and 40 seconds.
The fuel capacity is about 26 gallons (24 in the wings, 2 in a header tank). With a fuel burn of 30 lb./hr, which would produce 50 hp, the aircraft would cruise about 240 mph, assuming a .45 FPE. This would allow over five hours of flight.
All of these numbers are of course only mathematical projections at this time.
Outrageous isn't it.
Sitten speksit !
Insertti;
Specifications.
Wing span: 14 feet
Chord: 2 feet
Wing area (exposed): 24 square feet
Length:14.5 feet
Fuselage cross-section: 30.5 x 23.5 inches (oval)
Dry weight : 410 lb.
Total wetted area: 139 square feet
Flat plate equivalent (calculated): <.45 square feet
Engine: AMW 808cc, 3-cylinder in-line, two stroke, liquid cooled, 100 HP
Eli 150-160 kg/m2 kuormitus siivessä...??? sama kuin Fougassa;
http://fi.wikipedia.org/wiki/Fouga_Magister
http://www.fouga-team.fi/ohjaajanohje/c ... anohje.pdf .....eli Fouga sakkaa 170 km/t sileenä ja 140 km/t dirty.
Pieni kone kuten VMaxProbe vaan sakkaa 2 kertaa nopeammin ( pienempänä )...joten lopputulema ei ole ihme.
vrt;
http://www.rotecradialengines.com/customers/Boxkite.htm ( 10.86 kg/m2 )
