restored Horten flies

[Frank Whiteley]

http://www.youtube.com/watch?v=QXdTMswP19Y

http://www.youtube.com/watch?v=k8in4nEyiNA

[Gunnar]

Two nice video in one night!

Time to go to bed,

Gunnar

[Fred the Red Shirt]

On Mar 9, 2:06 am, Frank Whiteley > wrote:
> http://www.youtube.com/watch?v=QXdTMswP19Y
>
> http://www.youtube.com/watch?v=k8in4nEyiNA

Interesting.

It looks like the control stick is rigged so that it
does double duty as a mixer, is that correct?

--

FF

[[email protected]]

On Mar 12, 12:17*pm, Fred the Red Shirt >
wrote:
> On Mar 9, 2:06 am, Frank Whiteley > wrote:
>
> >http://www.youtube.com/watch?v=QXdTMswP19Y
>
> >http://www.youtube.com/watch?v=k8in4nEyiNA
>
> Interesting.
>
> It looks like the control stick is rigged so that it
> does double duty as a mixer, is that correct?
>
> --
>
> FF

I would think you'd have to use mechanical mixing to get elevon
control on one stick. It would be very interesting to see a schematic
diagram of the control cables on that ship. That's a very interesting
old bird.

[Bill Daniels]

> wrote in message
...
On Mar 12, 12:17 pm, Fred the Red Shirt >
wrote:
> On Mar 9, 2:06 am, Frank Whiteley > wrote:
>
> >http://www.youtube.com/watch?v=QXdTMswP19Y
>
> >http://www.youtube.com/watch?v=k8in4nEyiNA
>
> Interesting.
>
> It looks like the control stick is rigged so that it
> does double duty as a mixer, is that correct?
>
> --
>
> FF

I would think you'd have to use mechanical mixing to get elevon
control on one stick. It would be very interesting to see a schematic
diagram of the control cables on that ship. That's a very interesting
old bird.

'Elevon' control mixers aren't as complicated as that required for a 'V'
tail. From Peter Selinger's and Dr. Reimar Horten's book "Nurflugel"
describing the Ho-1 control system:

"The elevators were moved by pushrods, the ailerons by cables, all attached
to a conventional stick." "The pedals were linked to drag rudders near the
wing tips. They could be operated separately for directional control, or
together as spoilers, something that had not been introduced on other
sailplanes".

One can only imagine the self confidence of Bros Reimar and Walter Horten
who first flew the Ho-1, their first design, in 1933. They had no previous
work to draw on so they had to trust their instincts that it would indeed
fly.

Bill Daniels

[Martin Gregorie[_1_]]

Bill Daniels wrote:
> "The elevators were moved by pushrods, the ailerons by cables, all attached
> to a conventional stick." "The pedals were linked to drag rudders near the
> wing tips. They could be operated separately for directional control, or
> together as spoilers, something that had not been introduced on other
> sailplanes".
>
"something that had not been introduced...."

Did the Ho-1 precede Robert Kronfeld's huge Ku-4 Austria or 1932?
According to Martin Simons' description of it, the twin rudders only
moved outward and you used one at a time to turn, or stood on both
pedals to use them as brakes. The only problem is that didn't really
work very well...

Seeing Simons says the Austria was the first glider to have any form of
brakes or spoilers it follows that the authors of "Nurflugel" were mistaken.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |

[Fred the Red Shirt]

On Mar 12, 10:53 pm, Martin Gregorie >
wrote:
> Bill Daniels wrote:
> > "The elevators were moved by pushrods, the ailerons by cables, all attached
> > to a conventional stick." "The pedals were linked to drag rudders near the
> > wing tips. They could be operated separately for directional control, or
> > together as spoilers, something that had not been introduced on other
> > sailplanes".
>
> "something that had not been introduced...."
>
> Did the Ho-1 precede Robert Kronfeld's huge Ku-4 Austria or 1932?
> According to Martin Simons' description of it, the twin rudders only
> moved outward and you used one at a time to turn, or stood on both
> pedals to use them as brakes. The only problem is that didn't really
> work very well...
>
> Seeing Simons says the Austria was the first glider to have any form of
> brakes or spoilers it follows that the authors of "Nurflugel" were mistaken.
>...

"Something that had not been introduced" is ambiguous. The
'something', maybe 'spoilers', or the 'something' may be twin
rudders that both open outward to act as brakes as opposed
to other sorts of spoilers or breaks.

--

FF