Aerodynamic windbreak

Hightower · 15 March 2007, 14:04

Anyone know of a design that can be incorperated into a low windscreen that at speed would deflect the wind over the heads of the crew? Like in a F1 car.

gtflash · 15 March 2007, 14:09

the yanks use a reverse lip on their windscreen less boats. I think cookee has incorparated something similar. I dont think its strictly aerodynamic but it deflects the wind which is probably alot more important... ill look for a pic

matt h · 15 March 2007, 19:04

what about a motorcycle screen, they call it a double bubble screen,!!

codprawn · 15 March 2007, 19:06

Do a google image search for aeroscreens - may give you a few ideas - as used on many vintage racing cars etc.

Neal · 15 March 2007, 19:19

Quote:

Originally Posted by Hightower

Anyone know of a design that can be incorperated into a low windscreen that at speed would deflect the wind over the heads of the crew? Like in a F1 car.

It is going to be some size to deflect the wind over your head

Hightower · 15 March 2007, 19:37

You think so? I'd have hoped to have kept the screen as small as possible.

codprawn · 15 March 2007, 19:39

The faster you go the smaller the screen needs to be - like a wing on a plane.

Neal · 15 March 2007, 19:40

Quote:

Originally Posted by Hightower

You think so? I'd have hoped to have kept the screen as small as possible.

You could always sit on the floor

The Garfish · 15 March 2007, 19:45

Quote:

Originally Posted by Hightower

at speed would deflect the wind over the heads of the crew?

i av fownd dat standin de misiz jakeeen att de frunt ov de fkin bote sulves de problum

gaRf

jwalker · 15 March 2007, 19:51

Quote:

Originally Posted by Hightower

Anyone know of a design that can be incorperated into a low windscreen that at speed would deflect the wind over the heads of the crew? Like in a F1 car.

I you're talking about a jockey seat RIB, I reckon you won't manage it. You need to keep your head far away from the screen to cope with the lurching and RIB speeds are relativley slow so you'll not get laminar flow to come off the screen and stream upwards that distance. You might be able to arrange a situation where the screen is a spoiler and you sit in the turbulance, which could be a bit less airy than standing in the breeze.

Just my guess, of course.

Hightower · 15 March 2007, 19:51

Quote:

Originally Posted by The Garfish

i av fownd dat standin de misiz jakeeen att de frunt ov de fkin bote sulves de problum

gaRf

Yeh, that works....But she's not my missus

I could get a figure head of Kathleen made for me new Boat, that'll work?

Hightower · 15 March 2007, 19:55

Quote:

Originally Posted by jwalker

I you're talking about a jockey seat RIB, I reckon you won't manage it. You need to keep your head far away from the screen to cope with the lurching and RIB speeds are relativley slow so you'll not get laminar flow to come off the screen and stream upwards that distance. You might be able to arrange a situation where the screen is a spoiler and you sit in the turbulance, which could be a bit less airy than standing in the breeze.

Just my guess, of course.

Might work JW, I'm not worried about messing up my hair these days, just something that was more comforable. It's also a subject that no ones mentioned as yet, but could benefit many.

jwalker · 15 March 2007, 20:03

I agree with you that shelter is worth having. Why do you want to have a low screen? Is it a southerner's styling thing?

Hightower · 15 March 2007, 20:10

Quote:

Originally Posted by jwalker

I agree with you that shelter is worth having. Why do you want to have a low screen? Is it a southerner's styling thing?

Well yes and no.

I do like a low screen as it's sylish and means that there's no obsured view when things get rough.

However a large screen is only really usefull when you need that shelter, but a catch 22 happens and you don't really get the visibility.

I thought that someone on here would have experience of a happy compromise and might even a have an ingenious solution to the problem and like to share this.

benc · 15 March 2007, 20:18

Quote:

Originally Posted by Hightower

I thought that someone on here would have experience of a happy compromise and might even a have an ingenious solution to the problem and like to share this.

Is one of these small enough

Hightower · 15 March 2007, 20:20

On a hot summers day

John Kennett · 15 March 2007, 20:54

Soft top version!

John

benc · 15 March 2007, 23:06

Quote:

Originally Posted by Hightower

On a hot summers day

Can't beat a nice breeze on a hot summers day

jwalker · 15 March 2007, 23:14

Quote:

Originally Posted by Hightower

...I thought that someone on here would have experience of a happy compromise and might even a have an ingenious solution to the problem and like to share this.

I remember my Dad's first car, it had a large screw and handle on the dash which opened the bottom of the screen. Climate control...what more could you want?.

Cookee · 16 March 2007, 10:10

Quote:

Originally Posted by gtflash

the yanks use a reverse lip on their windscreen less boats. I think cookee has incorparated something similar. I dont think its strictly aerodynamic but it deflects the wind which is probably alot more important... ill look for a pic

Yes we do have one of these on our 770 - works very well indeed, however it's a bit "built in"!