PDA

View Full Version : water tight doors?


ScottTDI
20th Oct 2008, 21:05
mate sent me this pic (http://image.automotive.com/f/crossovers/land-rover-discovery-3-when-your-business-needs-it/6233262+w631+cr1+re0+ar1/2005-land-rover-discovery-3-frontjpg.jpg) (he's thinking of getting one) and it got me thinking.

looking at it i'm asuming the water is over the bottom of the doors.

what is stopping the water from going inside the cab?
thebiglad
20th Oct 2008, 21:07
mate sent me this pic (http://image.automotive.com/f/crossovers/land-rover-discovery-3-when-your-business-needs-it/6233262+w631+cr1+re0+ar1/2005-land-rover-discovery-3-frontjpg.jpg) (he's thinking of getting one) and it got me thinking.

looking at it i'm asuming the water is over the bottom of the doors.

what is stopping the water from going inside the cab?


The door seals?

The clue is in the name:rolleyes:
ScottTDI
20th Oct 2008, 21:18
The door seals?

The clue is in the name:rolleyes:

I did think about them but never thought they would be that strong.

guess they could be.

EDIT:=- Welcome back BTW. pics?
Swingletree
20th Oct 2008, 21:20
Don't forget, he's driving through so will have a bow wave which means the water will be lower at te sides of the vehicle than at the front.
JulesV8
21st Oct 2008, 10:14
And of course the physics behind all this.

There is a higher pressure on the outside (due to the weight of the water) than the inside (air) therefore pushing harder on the seals and making the door more water tight (but then again - if you drive an ols landy, chances are your seals are ******ed and you have loads of holes in the floorpan - in which case -wet toes).

This is why, if you were to find your self sinking in a car you should open the windows as soon as possible, let water in to "equalise" pressures on each side of the door which, once equalised will allow you to open the door normally (if you want to wait that long)

You can of course just jump out the window before you go down with the car
Jon v8
21st Oct 2008, 12:10
You are of course aware that LR hand a hand in the design of the Titanic.:D
Marc Lurie
21st Oct 2008, 13:15
It's quite amazing how long it takes for water to start coming through door seal and holes, especially if you keep the vehicle moving. I'm sure some expert in fluid dynamics could explain, but I'm sure it is similar to the drag/lift effect of an aircraft.

However, (and I know this from bitter personal experience :D) if you stop for a few minutes, the cab fills with icy cold water and you end up sloshing around inside your own vehicle. It's never pleasant doing this in the middle of winter (more personal experience).