Discussion in 'Hangar Flying' started by Speedboat100, Aug 20, 2019.
I doubt that is very cheap.
It was sarkastic quote. Fes for mini lak adds 20000 eu to price..
Speedboat100 said: ↑
Comes very naturally when you have so many engines in e-planes...among other aspects.
I just love lifting fuselage conceps.
IIRC, Barnaby Wainfan (Facetmobile), in a paper describing a NASA PAV candidate a/c, talked about the higher structural efficiency due to the thicker cross section saving so much weight that airframe size (wing area) can shrink saving even more weight, so that ultimately, it can offset much of the drag penalty. He posts here from time to time; maybe he'll comment.
I would love that...weight savnig by putting the "useless" ( when considering most caeses for aerodynamical benefits ) fuselage into work was also the aim of De Monge...whose design was the Bugatti 100P.
Like this one ?
Quite low on wing loading, but fast for it too.
Plus google for : Kharkiv KhAI-3
This does not qualify: https://www.britmodeller.com/forums...aviavnito-3-flying-wing-by-mikromir-released/
This alone makes DeMonge a genious.
Burnelli was along the same lines: http://www.meridian-int-res.com/Aeronautics/Burnelli_AIAA.pdf
Absolutely qualify.. 2200kg mtow with only 125 hp
I still think some people have to compromise and make a hybrid to move forward in this area. As battery energy density improves you can rely less on the fossil fuel powered generator and eventually (hopefully) replace it entirely.
Solar battery plane is a hybrid too.
Khai-3 looks sorta unmature.
Well, it was built in 1936!
It all depends. For me it is quitness and reliability. Both much better than two stroke..
But for cross country, one small and detuned 4 stroke with magical 3kw of power is why not... But it needs an efficient airframe.
Addition. Was not able to find 4 stroke with pressure lubrication at mini size. Was looking into industrial one only. China 125cc scoter is no no for..
And i am.back into flying wing. Now considering Jim Marske Monarch. Maybe it looks weird, ant as sexy as swift to me, but forward swept wing is a thing. And no single word of bad handling.
Kevlar/carbon version if ok even for 115 kg with battery. 63kg empy, 6g for 90kg pilot...
And 1 to 19 glide ratio with open pilot.
Ok...I tought it was paperware.
So that makes 7.8 KW per person.
More on topic. Half of 3000watt hub motor for bicycle in custom case and re-winded for glider motor. 12 kw output..
All in Russian, but images are translated
=motor weight ?
(similar german motor HPD13 weight is,iff I remember, 4.5 kg ?)
Funny , but I just worked 2 hrs tuning my hub motor.
12 KW is amazing.
It would take on the order of 20hp to turn a 12kw generator? Sounds like the right size?
Do yourself a favor and google microturbine range extender.
Give an example. I do not know, any efficient turbine in less than 100ke range
Separate names with a comma.