I hink Biplanes/Triplanes are the best

In article ,
David Windhorst wrote:

Keith Willshaw wrote:

snip


Its been done

http://cellar.org/iotd.php?threadid=3754

Keith




Don't forget the PZL M-15 :
http://www.luftfahrtmuseum.com/htmi/ii/i006951.htm


Another biplane jet was Henri Coanda's from 1910:

http://www.ufx.org/avro/coanda/coanda.htm

A *tractor*, biplane jet aircraft.

On 31 Oct 2003 18:50:56 GMT, nt (Gordon) wrote:



Don't forget the PZL M-15 :
http://www.luftfahrtmuseum.com/htmi/ii/i006951.htm

MY EYES MY EYES

A plane only its mother could love.


greg
--
$ReplyAddress =~ s#\@.*$##; # Delete everything after the '@'
The Following is a true story.....
Only the names have been changed to protect the guilty.

Alan Minyard wrote in message . ..

The very first jet WAS a bi-plane:

http://tanks45.tripod.com/Jets45/His...aAeroplane.htm

Rob

No, the "aircraft" that you are referring to never achieved controlled flight. It
promptly crashed when a take off was attempted. It was not the first jet, it
was a failed attempt.

Al Minyard


The Coanda Turbine Aeroplane was the first aircraft built with a jet
engine. I never claimed it flew. And if you had read the account of
Coanda's failure it was not due to the aircraft but Coanda himself,
who was not a pilot.
He never got a second chance to make another one to have a real pilot
fly it... so we'll never know if it would have be a success or not.
It shows, however, how interesting WW1 could have been if the jet
biplane worked. Imagine jet Fokkers and Camels!
BTW Al, if you knew anything more about Coanda you would realize that
the Nazis forced him to work on a disc aircraft project during WW2. He
came up with a design for a 20 meter diameter lenticular machine with
12 Jumo 004 jet engines, but this project never went beyond the design
stage and windtunnel testing.

Rob

Greg Hennessy wrote:

On 31 Oct 2003 18:50:56 GMT, nt (Gordon) wrote:



Don't forget the PZL M-15 :
http://www.luftfahrtmuseum.com/htmi/ii/i006951.htm

MY EYES MY EYES

A plane only its mother could love.


greg

A very plain plane
--

-Gord.

On 31 Oct 2003 14:49:46 -0800, (robert arndt) wrote:

Alan Minyard wrote in message . ..

The very first jet WAS a bi-plane:

http://tanks45.tripod.com/Jets45/His...aAeroplane.htm

Rob

No, the "aircraft" that you are referring to never achieved controlled flight. It
promptly crashed when a take off was attempted. It was not the first jet, it
was a failed attempt.

Al Minyard


The Coanda Turbine Aeroplane was the first aircraft built with a jet
engine. I never claimed it flew. And if you had read the account of
Coanda's failure it was not due to the aircraft but Coanda himself,
who was not a pilot.
He never got a second chance to make another one to have a real pilot
fly it... so we'll never know if it would have be a success or not.
It shows, however, how interesting WW1 could have been if the jet
biplane worked. Imagine jet Fokkers and Camels!
BTW Al, if you knew anything more about Coanda you would realize that
the Nazis forced him to work on a disc aircraft project during WW2. He
came up with a design for a 20 meter diameter lenticular machine with
12 Jumo 004 jet engines, but this project never went beyond the design
stage and windtunnel testing.

Rob

It really bugs you that the Nazi's lost, doesn't it? That contraption was
incapable of controlled fight, and was not a true jet or turbojet. It was
a bad joke.

Al Minyard

"Alan Minyard" wrote in message
...
On 31 Oct 2003 14:49:46 -0800, (robert arndt) wrote:


It really bugs you that the Nazi's lost, doesn't it? That contraption was
incapable of controlled fight, and was not a true jet or turbojet. It was
a bad joke.

Al Minyard

An overreaction I think Al

Coanda was no Nazi , in fact he wasn't German. He was
a Romanian who was for a while the technical director of
Bristol Airplanes in England and later worked as a designer
at Dalauney-Belleville Airplanes in Saint Denis, France during WW1.

There's nothing about the aircraft to suggest it was incapable
of controlled flight other than that Coanda himself was no
pilot. The technology may not have existed for the idea to be workable
but the pioneering research he did has been recognised worldwide.

Thats why they call it the Coanda Effect after all.


Keith

"Keith Willshaw" wrote:

Thats why they call it the Coanda Effect after all.

You may have heard stories saying that the "Coanda Effect"
(as opposed to Bernoulli's Principle) explains how an airplane
wing works.

Alas, these are just fairy tales. They are full of errors and are
worse than useless.

"Mike Marron" wrote in message
...
"Keith Willshaw" wrote:

Thats why they call it the Coanda Effect after all.

You may have heard stories saying that the "Coanda Effect"
(as opposed to Bernoulli's Principle) explains how an airplane
wing works.


I have heard stories that allege Elvis is alive and well and
working in a chip shop in Burnley too.

Alas, these are just fairy tales. They are full of errors and are
worse than useless.


Which has nothing to do with the Coanda effect or Henry Coanda's
work.

Keith

"Keith Willshaw" wrote:
"Mike Marron" wrote:

You may have heard stories saying that the "Coanda Effect"
(as opposed to Bernoulli's Principle) explains how an airplane
wing works.

I have heard stories that allege Elvis is alive and well and
working in a chip shop in Burnley too.

Ain't it the truth! Almost as bad as the stories that allege the Brits
are "athletic" because they keep thinking that 'soccer' is a sport.
What a bunch of weakass Euro-peons chasing a round ball
around. They should bend and submit to America like always,
since we have the sense to PICK THE DAMN BALL UP AND
THROW IT."

Alas, these are just fairy tales. They are full of errors and are
worse than useless.

Which has nothing to do with the Coanda effect or Henry Coanda's
work.

The Coanada theory of lift brings to mind a question asked
of me, more as a joke than a serious desire for knowledge, about
the truckload of birds approaching a weigh station and the driver
knowing the truck exceeded the legal limits.

As he approached the scales, the driver smacked the side of the
trailer violently with his hand, thereby scaring the birds into
flight and lightening the load as he rolled slowly over the scales,
smiling at the inspector as he was now below the maximum weight.

According to the "Coanda" believers, if the birds actually get their
lift from Bernoulli, then there would be no downward pressure change
and the truck would weigh the same.

Mike Marron wrote:


As he approached the scales, the driver smacked the side of the
trailer violently with his hand, thereby scaring the birds into
flight and lightening the load as he rolled slowly over the scales,
smiling at the inspector as he was now below the maximum weight.

According to the "Coanda" believers, if the birds actually get their
lift from Bernoulli, then there would be no downward pressure change
and the truck would weigh the same.


By God, I've read that last para there about 15 times and I still
don't know what 'you' believe...so do 'you' think that the truck
weighed the same or not? (also I'm assuming that the trailer with
the birds inside was more or less air tight)?
--

-Gord.