28 tunnel extension
#12
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Location: Gig Harbor, WA
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#13
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zero... your 28 trailers bunks are diff than mine...mine support the hull on the sponsons all the way out to the end of the notched transome not under the tunnel...is that a skater trailer??? mine also fits pretty tight and will get a little stuck because or the wood/carpet expansion I think...kinda sucks launching sometimes.
#14
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Not a skater trailer, aluminum one built by someone in New York , I added 2x2x.25 stiffeners on the main rails, and new 6 k axles with a brakerite system. It loads unloads very easy. The tab is a stock Mercury 180 I think. Square and about 14 x14
#15
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#16
Racer
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You are not touching the water with it, you are moving the air passing through your tunnel......... If it touches the water, you're doing it wrong.....
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#19
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I'm trying to learn more about cat characteristics , can you please explain what the "burp" is?
are you saying that compressed air inside the tunnel exit in bursts?
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I'm trying to learn more about cat characteristics , can you please explain what the "burp" is?
are you saying that compressed air inside the tunnel exit in bursts?
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#20
Platinum Member
Platinum Member
yes noli...my 28 does it 50-60mph...the air compresses and lifts the hull then releases(burps) causing a hop until you are moving fast enough to keep the air compressed/packed and keep the hull "flying". by adding a tab you can adjust the space the air has to leave the tunnel so you have some control...I've never used one...I'm still learning on my 28 but I do know leaving it down and turning is BIIIIIG no no!!!!
http://www.youtube.com/watch?v=UNdpdxrjOQ8
hop/burp at about 40sec-1:19....then again as he slows around the 3:45 mark. Love the sound of twin outboards...the 2.5's sound better but the 300xs's aren't bad either LOL.
http://www.youtube.com/watch?v=UNdpdxrjOQ8
hop/burp at about 40sec-1:19....then again as he slows around the 3:45 mark. Love the sound of twin outboards...the 2.5's sound better but the 300xs's aren't bad either LOL.
Last edited by LAriverratt; 10-30-2013 at 08:25 AM.