Escapade 28ft Walk Around - part of my "bucketlist"

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benniejordaan

Sealiner
barryfish wrote:
benniejordaan wrote:
barryfish wrote:
Anyone know why they pump the air?
My logic says when you pump out the water air on a valve will replace it, when you pump in the water it will get heavy and sink? or is the sponson under air pressure? would higher air pressure make it float better, or have i just answered my own Q.
Click to expand...
While the pump is running all you will see is it is rising. When it gets all the way up, air suddenly starts coming out the bottom. That is because air is pushed in the top which pushes water out the bottom. Once it gets all the way up and water has been completely expelled, air starts coming out the holes and it is switched off. If you keep the valve closed and dont let air escape, it stays up. Then you need to use a different valve to let the air out again because of the one way valves. I would personally just have a switch over valve that you can open/close instead of switching the pipes over. There will be a one way valves like a blow up mattress. One valve for up and one for down. In the video there are 4 pipes one for each of those inlet boxes.

Along those lines...

I think there will be 4 air pumps.
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I got how it works with non return valves etc, just why pump air, why not just pump the water out, with a one way air valve that lets air in and only pressured air out, then your pump can sit on the key, and you would only need one pump. when you pump water in will pressure the air and expel, when you pump water out you create vacuum, sucking air in.
The air must be forced in to lift the boat? compressors involved?
Click to expand...
It wont be a compressor just a blower like they use on those jumping castles. Cheap... Would you rather have an air blower or a marine grade stainless steel pump to pump salt water?

wont need much more than this.

images
 
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BFC

Senior Member
Escapade

I take it congratulations are in order.

I have Heard from my friends at Honda that you have taken
over the Honda Marine Dealership in Somerset West on Friday from Jeremy Barnes.

Good luck and may the business bring you lots of prosperity .
 
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BFC

Senior Member
benniejordaan wrote:
Interesting.

http://www.gumtree.co.za/a-boats-jet-skis/strand/gs-28-walkaround-catamaran/1001460322450910010767209
Click to expand...

Bennie ,

this is n very subtle stir of the pot - I like it;)

If you are down in the Cape Come take it for a spin as words don't do it justice .

The most exciting aspect is fuel consumption
 
B

BFC

Senior Member
benniejordaan wrote:
Interesting.

http://www.gumtree.co.za/a-boats-jet-skis/strand/gs-28-walkaround-catamaran/1001460322450910010767209
Click to expand...

Bennie ,

this is n very subtle stir of the pot - I like it;)

If you are down in the Cape Come take it for a spin as words don't do it justice .

The most exciting aspect is fuel consumption
 
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