What do you think about "e-soaring"?

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henryk

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John.Roo

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speedracer

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Interesting that, even with RR involved, first flight was almost 10 months later that first announced.

It also will be interesting to see the effect of much less cooling drag on top sustained speed. Higher HP ICE powered NXT’s haven’t been leaders at Reno, where top qualifying pylon course speeds, in good conditions, are in the 410 MPH range.


BJC
Years ago (10?) Jon Sharp did a 409 MPH qualifying run in his NXT.
 

sming

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It actually would be a good way to train the pilot and check aircraft flyability instead of trying to learn to fly while putting out 500w of effort!
 

henryk

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super light airplane
f.e.= 75 kg (15 qm) KASPERwing...? L/D=15.

for 75+75=150kg TOW can fy 5 m/s (18 km/h !)

=the power for horisontal fly (F drag=150/15 =10 kG ) is=

98.1 *5 <500 W

=clean K-wing can be 15 kg weight...

for 15+75=90 kg 90/15=6 kG ( 59 N) 59*5= 294 W (circa 0.3 kW !)


BTW= 15 kg K-W should fly at circa 11 km/h speed (0.8*5 =4 m/s )

another example= 14 kg hang glider +6 kg drive=

 

John.Roo

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It actually would be a good way to train the pilot and check aircraft flyability instead of trying to learn to fly while putting out 500w of effort!
Would be nice to have "pedelec" category during Icarus Cup - Cross Chanel competition.
Could be some unified system (the same for all teams with +-500 W motor and unified battery size).
I really beleive that this small "improvement" would be attractive also for public and media ;)
 

John.Roo

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-DEADALUS was flown much more distance>90 km ?
You are right - in 1988 Deadalus flown 115,11 km (71,5 miles) in 3 hours and 54 minutes.
Really amazing...
As I wrote - I like idea of Icarus Cup and Chanel Crossing.
It is attractive and price for winner (70 800 USD) is also good motivation.
Howeever due to simple fact, that alreaedy in 1988 Deadalus crossed more than 100 km I would expect at least small innovation. And in this case is small inovation could be 500 W pedelec same for all teams. It would be good for safety (pilot focused more on controls) and it could allow to fly this type of airplanes also to other humans than proffesional cyklist.

Doesn´t seem that Icarus Cup will allow this modiication (maybe in future) but still could be a nice project for teams from aeronautical universities 👍 This "human powered airplanes" are practically using technology from RC models. I can imagine for example use of 3D printed parts etc.
 
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henryk

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practically using technology
=grafen...

or "simple" carbon=
 

henryk

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see

=CR propellers ?

Would an Electric LSA Kit Appeal to You?
Dean Sigler 09/21/2021 Announcements, Electric Aircraft Components, Electric Aircraft Materials, Electric Powerplants, Sustainable Aviation Leave a Comment

Is there a need and desire for an electric light sport aircraft (LSA) kit that is inexpensive to own, operate, and maintain? Electric flight already offers that possibility, and if kits were available to further lower costs, we could see a new way to achieve low-cost flight. The LSA designation qualifies a builder to take advantage of LSA’s lighter constraints.
A good friend who happens to have designed an electric Light Sport Aircraft (LSA) a few years ago let the project lapse because of the need to tend to other business interests. He wants to know if there’s a market for a new, improved version of his original concept – an electric LSA that would fly for considerably less in operating costs than an internal-combustion model, and that would provide reliable, safe sport flying. He provided the following survey to the Experimental Aircraft Association, which created the link at the end of this entry.
 

John.Roo

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I don´t know if "Electric LSA KIT" project will use CR props.

This Editor’s Note:
"The craft shown on the featured image is a 2015 concept from Locus Aircraft and shown only as an example of what might come from such a survey."

1632296957194.png

1632296973058.png

1632297005154.png
 

John.Roo

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Thread about amazing 100 years of Rene Fournier 👍
 

EzyBuildWing

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Proximity-eGliding around the mountains of beautiful Lake Como in Northern Italy….. (Note: the gliderport is actually on the shore of Lake Varese)
Looks the ultimate life-style!

 

John.Roo

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Proximity-eGliding around the mountains of beautiful Lake Como in Northern Italy….. (Note: the gliderport is actually on the shore of Lake Varese)
Looks the ultimate life-style!

Nice 👍
This confirms that "e-glider" has to be:
- easy to handle, safe stall characteristics and good maneuverability
- able to fly without engine (acceptable L/D)
- with electric self launch propulsion
- pilot must have very good vissibilty (front and upper hemisphere)
- fast assembly possibility (like all modern gliders)

"Dream configuration" would have also possibiity of different wing extensions ;)
 
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