2012-03-14
2012-03-12
Latest mods for the transport IO-2
It has bigger door, bigger window an added window and one seat less. MTOW ( maximum take off weight ) has been increased. Economy is now "only" 1 LITER / 100 KM / occupant when fully loaded @ 200 km/h speed.
2012-03-10
"Faberge Egg" theory of design !
I have been talking about this Faberge Egg theory of aeroplane design few months now...I have tried to practise it in all of my designs to save weight and gain performance. Here is another example what it can bring about. I cropped the DH89 side by side with IO-2 in the same scale.
DH89 Dragon Rapide is almost 80 years old now ( first flite 1934 ). IO-2 needs 2 x 100 hp to get airborne from frozen lakes and grass fields. I also counted it flies at 30% power using only 0,89 liters/passenger/100 km and flying 200 km/h ( 125 mph ). At engines cruise setting ( 75% ) it burns 40 liters/hr and does 262 km/h ( 163 mph ) and at top speed of 289 km/h it still burns less than 2,5 l/occupant/100 km..beating DH89 by 1 liter/passenger and flying 50 km/h faster. Also beating in economy all Boeing and Airbus products. Light weight is being obtained by the foam-ply-carbon hybrid structure.
http://www.aviastar.org/air/england/havilland_rapide.php
I have also the theory of weak powered flight..emaning that flying less fast and with advanced structures with new aerodynamics a save in fuel is enermous.
2012-03-08
2012-03-07
One practical solution of what this means !
I am slightly annoyed by the slow pace the people seem to be reacting to my theories of low powered flight.
Here is one example that I hastily sketched today.
This 8 seater ac has less span than a DH89 Dragon Rapide and 4x less weight than 10 seater Fokker Trimotor..yet it is a lot shorter than a Tecnam P2006T with similar engines.
This also hasn't flown...no funding so far.
--
Edit: I'll try to push this twin into Aero 45 direction ( 2+5 seater )...after the IO design of course.
2012-03-04
Landing gear and wing tank renewed !
I had to rearrange the gear set up since I moved 16 liter wingtanks to the design...to the forward of the wing spar ( position ).
It looks really cool, but I also keep it under wraps for a while since I have no funding so far...might take years before this baby flies. Lotsa enlightening holes in the design, but principally as it was...a tad stronger perhaps.
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