Jim,
That is the concept for Glofly, now renamed GoFly
and seeking funding in the US.
Could be done on a normal glider in the wheel.
You could taxi it out to the takeoff point by
walking the wingtip with a little wireless
controller in your hand. No towbars, wing walkers
etc required. By shorting the motor outputs you
may have a glider brake that really works too for very little extra trouble.
Mike
.
At 10:57 AM 9/21/2016, you wrote:
Sounds like an outrunner would be the choice for
a glider wheel, enough acceleration to allow a jet sustainer to self-launch.
Jim
------ Original Message ------
From: "Mike Borgelt"
<<mailto:[email protected]>[email protected]>
To: "Discussion of issues relating to Soaring in
Australia."
<<mailto:[email protected]>[email protected]>
Sent: 9/20/2016 5:11:27 PM
Subject: Re: [Aus-soaring] electric self launch
It is just structural engineering. Put the
right amount of material in the right place.You
can see the pivot shaft in the videos.
I suspect the entire turtledeck fairing is non structural.
That motor design is in all sizes from very
small to many 10s of kilowatts. It is called an
outrunner. More torque at lower rpm so you
don't need a gearbox. The electromagnet coils
are fixed and the case has the permanent
magnets inside it and rotates with prop
attached. No brushes as they are 3 phase
AC. The 3 phase is generated by solid state
electronics and the current is pulse width modulated for power control.
So an electric self launch, light weight, 50:1
15m glider capable of flying at 60 Kg/sq m with
built in ballistic chute. If they go as good as
they look I think Peszke's main problem will be ramping production.
Mike
At 07:17 AM 9/21/2016, you wrote:
Very nice.Ã Rapid extension and
retract.Ã I have seen that motor somewhere before.
I did like the large access panel to the motor
compartment.Ã Not sure how they maintain adequate strength in that area.
On Tue, Sep 20, 2016 at 7:25 PM, Mike Borgelt
<<mailto:[email protected]>
[email protected]> wrote:
At 07:04 PM 9/20/2016, you wrote:
Any à good links?
I found a schematic diagram which indicates
that the motor has a pusher folding
prop.ÃÃ Not sure how it retractss and
fits in the fuselage with the blades sticking up?
Here you go:
<http://www.gpgliders.info/technik/>http://www.gpgliders.info/technik/
Scroll down to the videos. They took quite a
while to load here. The link seems slow.
Sheer bloody genius I think.
Mike
Borgelt Instruments - design & manufacture of
quality soaring instrumentation since 1978
<http://www.borgeltinstruments.com/>www.borgeltinstruments.com
tel:Ã Ã 07 4635 5784Ã Ã Ã Ã Ã overseas: int+61-7-4635 5784
mob: 042835 5784Ã Ã Ã Ã Ã Ã Ã Ã Ã Ã
à à à à à à :à int+61-42835 5784
P O Box 4607, Toowoomba East, QLD 4350, Australia
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_______________________________________________
Aus-soaring mailing list
<mailto:[email protected]>[email protected]
http://lists.base64.com.au/listinfo/aus-soaring
Borgelt Instruments - design & manufacture of
quality soaring instrumentation since 1978
www.borgeltinstruments.com
tel: 07 4635 5784 overseas: int+61-7-4635 5784
mob: 042835 5784 : int+61-42835 5784
P O Box 4607, Toowoomba East, QLD 4350, Australia
_______________________________________________
Aus-soaring mailing list
[email protected]
http://lists.base64.com.au/listinfo/aus-soaring
Borgelt Instruments - design & manufacture of
quality soaring instrumentation since 1978
www.borgeltinstruments.com
tel: 07 4635 5784 overseas: int+61-7-4635 5784
mob: 042835 5784 : int+61-42835 5784
P O Box 4607, Toowoomba East, QLD 4350, Australia
_______________________________________________
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