PiBoSo Official Forum

General => Off Topic => Topic started by: davidboda46 on February 18, 2016, 05:47:02 AM

Title: On the subject of wings...
Post by: davidboda46 on February 18, 2016, 05:47:02 AM
Wings, winglets, arerofoils, strakes or what ever you call them, they have been around for ages... Found some classics in this article (unfortunately I don't know Spanish). The most outrageous one ever must be the Aerofoil Viko TZ750A. Looks like an older F1 on 2 wheels.   

http://www.motorpasionmoto.com/motogp/sabeis-como-funcionan-los-alerones-de-ducati-y-yamaha-pues-os-contamos-todos-los-detalles (http://www.motorpasionmoto.com/motogp/sabeis-como-funcionan-los-alerones-de-ducati-y-yamaha-pues-os-contamos-todos-los-detalles)

Cheers,

/David
Title: Re: On the subject of wings...
Post by: Napalm Nick on February 18, 2016, 07:44:30 AM
Interesting article David. I had a think but I certainly don't remember seeing any of these designs back in the day. I guess when you can't squeeze any more out of the engine its time to maximise the aero for downforce gains, and its been the same idea for decades.

8)
Title: Re: On the subject of wings...
Post by: HornetMaX on February 18, 2016, 10:14:50 AM
Not sure the Viko is the most outrageous: check that out (it's a page from a book by T.Foale).

(http://i.imgur.com/bbXydBT.png)

240 Kmh with 47bhp in 1957. Guess now one gets why this kind of front fork/wheel fairing is banned :)
Title: Re: On the subject of wings...
Post by: h106frp on February 18, 2016, 11:07:08 AM
Quote from: HornetMaX on February 18, 2016, 10:14:50 AM
Not sure the Viko is the most outrageous: check that out (it's a page from a book by T.Foale).

(http://i.imgur.com/bbXydBT.png)

240 Kmh with 47bhp in 1957. Guess now one gets why this kind of front fork/wheel fairing is banned :)

Read something on this the other day, apparently having a 'dustbin' type fairing pushes the 'centre of pressure' well forward of the C of G and has a rather unfortunate effect on the handling at higher speeds. This is why they were banned from racing.
Title: Re: On the subject of wings...
Post by: Napalm Nick on February 18, 2016, 11:44:13 AM
May I suggest one as your next project H  ;D one for the Classics category maybe.
Title: Re: On the subject of wings...
Post by: h106frp on February 18, 2016, 12:16:02 PM
Would have to be this one, with a ukulele based .scl file of course  ;)

(http://www.yesterdays.nl/images/AJS-1927-H5-GF-2.jpg)

Rider model might need a bit of work though  ::)

(http://www.ukuleleman.co.uk/mcn1a.jpg)
Title: Re: On the subject of wings...
Post by: Napalm Nick on February 18, 2016, 01:30:55 PM
HAHA! My favourite Formby film this just HAS to be DONE! LOL! Bought the Box set for me old Dad cupla years back but I watched 'em all first before he got them.

"No limits"  :) :) :)
Title: Re: On the subject of wings...
Post by: Vini on February 18, 2016, 04:22:29 PM
Oh god, let's just hope Ducati doesn't see these pictures.


Anyway, I wonder why they haven't put the wings on the front mudguard instead of the fairing.
Shouldn't it be better to have the downforce directly go to the wheel without travelling through the suspension first?
Title: Re: On the subject of wings...
Post by: HornetMaX on February 18, 2016, 05:21:09 PM
Quote from: vin97 on February 18, 2016, 04:22:29 PM
Anyway, I wonder why they haven't put the wings on the front mudguard instead of the fairing.
Shouldn't it be better to have the downforce directly go to the wheel without travelling through the suspension first?
Sounds like a bad idea: if the wheel is kept on the ground but the bike's body still lifts/tilts, the attitude is not optimal.

Could be for other reasons though: maybe the airflow is more favourable on the sides of the fairing.
Or maybe you're simply not allowed to put wings there.
Title: Re: On the subject of wings...
Post by: davidboda46 on February 18, 2016, 05:25:44 PM
Quote from: vin97 on February 18, 2016, 04:22:29 PM
Oh god, let's just hope Ducati doesn't see these pictures.


Anyway, I wonder why they haven't put the wings on the front mudguard instead of the fairing.
Shouldn't it be better to have the downforce directly go to the wheel without travelling through the suspension first?

Probably because the wheel turns. I think the downforce from the wings will affect the handling in different ways depending on where the wheel is pointing in a given moment. Also it is harder to make the winglets secure, much less of a base for a safe attachment. And it is closer to the ground which might be a problem when the bike is leaning over. But I'm just speculating here.

Cheers,

/David "Gonzo" Boda #46
Title: Re: On the subject of wings...
Post by: h106frp on February 18, 2016, 05:26:30 PM
Quote from: Napalm Nick on February 18, 2016, 01:30:55 PM
HAHA! My favourite Formby film this just HAS to be DONE! LOL! Bought the Box set for me old Dad cupla years back but I watched 'em all first before he got them.

"No limits"  :) :) :)

I think with 2.75 hp the novelty might not last long  ;)
Title: Re: On the subject of wings...
Post by: h106frp on February 22, 2016, 03:05:06 PM
More extreme aerodynamics from Italy .......  for a Vespa scooter, real life factory racers   :o

(http://2.bp.blogspot.com/-8Bzg9cpItF0/T4Po2AvCKNI/AAAAAAAAAMw/xuhHucfbdrw/s400/Vespa_125cc__Montlhery_1950.jpg)

(http://www.vespags.it/wp-content/uploads/2008/10/foto-epoca.JPG)
The adventurous souls riding this creation
(http://www.vespags.it/wp-content/uploads/2008/10/vespa125lega_da_scont.jpg)

Makes the Ducati GP wing seem tame  ;)
Title: Re: On the subject of wings...
Post by: Napalm Nick on February 22, 2016, 03:51:31 PM
Goodness me lol  :o
Title: Re: On the subject of wings...
Post by: Warlock on February 22, 2016, 09:28:19 PM
Quote from: Napalm Nick on February 22, 2016, 03:51:31 PM
Goodness me lol  :o

indeed XD  ;D
Title: Re: On the subject of wings...
Post by: Meyer#12 on February 22, 2016, 09:30:43 PM
I WANT THAT ONE! lol!
Title: Re: On the subject of wings...
Post by: h106frp on February 22, 2016, 11:15:43 PM
I found the 'circuito' on line and ordered it to add to my miniature bikes and scooters collection, got to find someone stocking the 'monthlery' now;  ;) Just too weird  :o
(http://www.vespage.hu/wp-content/uploads/2010/12/maistovespa.jpg)
Title: Re: On the subject of wings...
Post by: BOBR6 84 on February 23, 2016, 08:40:37 AM
Fair play.. do you have all the others?
Title: Re: On the subject of wings...
Post by: Napalm Nick on February 23, 2016, 08:42:55 AM
Ohhh look at that - a Vintage Italian porn magazine  :P Are you sure you should be linking that? !
Title: Re: On the subject of wings...
Post by: h106frp on February 23, 2016, 08:58:57 AM
Quote from: BOBR6 84 on February 23, 2016, 08:40:37 AM
Fair play.. do you have all the others?

I have a few of the others that relate to my youthful days in the 1980's - wish i had stored all my old bikes and scooters, worth a small fortune now.

I am sure is Vespa re-released the anti-tank version it would sell well nowadays  ;D
Title: Re: On the subject of wings...
Post by: Napalm Nick on February 23, 2016, 09:03:54 AM
This is the last one in stock  :o 

Vespa Monhlery (http://www.amazon.co.uk/Maisto-VESPA-MONTHLERY-Motorcycle-Model/dp/B00WX8K1GK)