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Martyn K18/11/2019 07:49:26
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Just spotted this on You Tube. Certainly some interesting designs that never made it past prototype

 
and
 
 
Martyn

Edited By Martyn K on 18/11/2019 07:49:51

Edited By Martyn K on 18/11/2019 07:55:45

Peter Miller18/11/2019 08:38:11
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10320 forum posts
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Try the Waterman Arrowbile or the Nemeth unbrellaplane and Bonney Gull for real oddballs.

The Arrowbile was very successful. The Umbrellaplane was pretty good too. The gull was insane and the flight lasted about 10 seconds

Piers Bowlan18/11/2019 09:00:10
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1905 forum posts
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Nemeth parasol, here.

Arup S2

Rowe UFO (Useless Flying Object)

Edited By Piers Bowlan on 18/11/2019 09:27:27

Nigel R18/11/2019 09:12:05
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3164 forum posts
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Nest of Dragons

There's a few hours to be lost browsing that site.

Edited By Nigel R on 18/11/2019 09:12:25

Peter Miller18/11/2019 13:53:50
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10320 forum posts
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Posted by Piers Bowlan on 18/11/2019 09:00:10:

Nemeth parasol, here.

Arup S2

Rowe UFO (Useless Flying Object)

Edited By Piers Bowlan on 18/11/2019 09:27:27

I WANT 3 Views of that one!!!!

I have looked at the Nemeth Umbrellap plane but the struttery put me off.

This one looks great!!!!

ken anderson.18/11/2019 14:51:50
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8476 forum posts
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brave lads to defy gravity in some of the contraptions....

ken anderson...ne..1...contraptions dept.

Piers Bowlan19/11/2019 08:48:25
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I can't agree more Ken, so very brave, no whimpy parachute recovery systems for them wink 2.

I was going to add some photos of the structure of the UFO but they won't upload to my album for some reason despite them being in PDF format.

Edited By Piers Bowlan on 19/11/2019 10:08:44

Martyn K19/11/2019 09:07:20
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4999 forum posts
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Posted by Piers Bowlan on 19/11/2019 08:48:25:

I can agree more Ken, so very brave, no whimpy parachute recovery systems for them wink 2.

I was going to add some photos of the structure of the UFO but they won't upload to my album for some reason despite them being in PDF format.

Edited By Piers Bowlan on 19/11/2019 08:55:10

Hi Piers

Need to be in jpg format...

Martyn

Piers Bowlan19/11/2019 11:11:09
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Doh! Thanks Martin yes. I downloaded some images of the UFO's structure a while ago from a magazine article online but I can't find it anymore. Here are the images anyway, it looks pretty straight forward and reminds me of the Nutball, without the turned up wingtips. 

The rotax two stroke engine produces 52hp apparently and is very light.

Peter, let me know when you have your prototype model flying,- in a couple of weeks time!

useless flying object.jpguseless flying object 2.jpguseless flying object 3.jpg

Edited By Piers Bowlan on 19/11/2019 11:15:21

Martyn K19/11/2019 14:46:46
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4999 forum posts
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That's just a big model. Someone clearly has aeromodelling skills when they put that wing together

Piers Bowlan19/11/2019 15:11:32
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It's not David Rowe's first, as he has built ten aircraft to date and this is his fifth circular winged aircraft. He also built a model, found it flew fine, so decided to build a full sized one!

The wing looks very simple with its flat underside, no washout and sharp leading edge.

The magazine article was in Australian Sport Pilot Jan 2019, incidentally.

Edited By Piers Bowlan on 19/11/2019 15:21:46

Peter Miller19/11/2019 16:41:48
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10320 forum posts
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10 articles
Posted by Piers Bowlan on 19/11/2019 11:11:09:

Doh! Thanks Martin yes. I downloaded some images of the UFO's structure a while ago from a magazine article online but I can't find it anymore. Here are the images anyway, it looks pretty straight forward and reminds me of the Nutball, without the turned up wingtips.

The rotax two stroke engine produces 52hp apparently and is very light.

Peter, let me know when you have your prototype model flying,- in a couple of weeks time!

useless flying object.jpguseless flying object 2.jpguseless flying object 3.jpg

Edited By Piers Bowlan on 19/11/2019 11:15:21

Those are most useful pictures.

I just have to finish my Stampe SR-7 and will be looking at this one. I need an oddball model next.

Peter Miller19/11/2019 16:56:08
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10320 forum posts
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10 articles

Just found that one can read the complete magazine as a PDF file

cymaz19/11/2019 17:13:30
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8812 forum posts
1195 photos

Rowe UFO had retracts as well! I was a little confused how the pilot would do the lower hatch up. Presumably he put is feet on the wing braces ( or rudder pedals for that matter )

Robin Colbourne19/11/2019 17:40:27
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443 forum posts
6 photos

Wikipedia has a plan and side view drawing here: KN Rowe 'Useless Flying Object'

The UFO is definitely a contender to use those Depron pizza trays I've been saving over the years.

My favourite is the Wainfan Facetmobile, for which a number of model plans are available:

Wainfan Facetmobile

 

Edited By Robin Colbourne on 19/11/2019 17:56:00

Peter Miller19/11/2019 18:09:52
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10320 forum posts
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10 articles

That is helpfull although the wing section is wrong.

Don Fry19/11/2019 18:45:08
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48 photos
Posted by Piers Bowlan on 19/11/2019 15:11:32:

It's not David Rowe's first, as he has built ten aircraft to date and this is his fifth circular winged aircraft. He also built a model, found it flew fine, so decided to build a full sized one!

The wing looks very simple with its flat underside, no washout and sharp leading edge.

The magazine article was in Australian Sport Pilot Jan 2019, incidentally.

Edited By Piers Bowlan on 19/11/2019 15:21:46

That wing has washout. Look at the photo.

Still it just need a bigger board, and probably a bigger bandsaw. Might need a 200 ml bottle of Gorilla glue.

Don Fry19/11/2019 18:53:47
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4124 forum posts
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Lee-Richards annular monoplane
Lee-Richards Annular Monoplane No I.jpg

The first monoplane during construction.

I think this is the origin to a free plan in a magazine, RC Scale Modeller? I built one, small 4 stroke powered. Flew Ok, very stable, can't remember what happened to it. Looked great on a flypast.

Piers Bowlan19/11/2019 19:07:17
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1905 forum posts
50 photos

The Wiki drawing is of Dave Rowe's previous UFO build that he built eleven years ago (with the tricycle gear). I agree Peter, the wing section is still wrong and looks different to his latest design.

I beg to differ Don, I have looked at many images online and the underside of his latest iteration looks completely flat to me - no (physical) washout although there is aerodynamic washout apparently? (said by those that claim to know about these things!)

This is his previous build...

early useless flying object.jpg

Edited By Piers Bowlan on 19/11/2019 19:10:26

Robin Colbourne19/11/2019 22:00:30
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443 forum posts
6 photos

An article about the UFO here: Sport Pilot UFO Article I doubt the wing section has a name. I guess it would be a case of draw what looks right and try it.

A front view of the taildragger version:

Rowe UFO

...and even more here:  Rowe UFO further info

Edited By Robin Colbourne on 19/11/2019 22:07:32

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