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 Norman Boats
 Well My Norman has ...............?
 Lift yer bum!
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df

United Kingdom
5994 Posts

Posted - 02 Apr 2019 :  15:39:41  Show Profile  Visit df's Homepage Send df a Private Message  Reply with Quote
Latest project to squeeze a bit more out of snowbird seems to have worked, now lifts it's bum better and gained 2 knots flat out, cruises a few 100 rpm lower without digging in too.
All 4 tabs are hydraulically adjusted and it will sit as level as I want it to, Ali said we could cruise with a better attitude but I pointed out that was wrong as I'd still be a knob!
Gone from a pair of 20" x 8" tabs to a pair of 22" x 12" & a pair of 25" x 12", just a small gain in surface area.....

Trim tabs before:



Trim tabs after:



NBAS--The communal colostomy bag of the boating community.
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cliveshep

Thailand
1324 Posts

Posted - 03 Apr 2019 :  02:06:11  Show Profile Send cliveshep a Private Message  Reply with Quote
Did you make your own Dave (Knob) and just buy the hydraulics?

Next you'll be fitting hydroplanes?

Way to go anyway IF the pay-off isn't too much increased drag cancelling the increased lift!





Finally living the dream!
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df

United Kingdom
5994 Posts

Posted - 03 Apr 2019 :  08:23:20  Show Profile  Visit df's Homepage Send df a Private Message  Reply with Quote
No bought bennetts at a hideous cost, it still revs to max rated rpm after a bit of build up and it's giving 2 knots over the prop guys expectation so I recon that's about all it will ever do with the hp available, same speed 200-300rpm lower has to be a fuel saving and easier on the ears as looking to do a few 6+ hour runs this year if the weather plays fair, got my sights on gt.yarmouth/whitby/scarborough/wells/gt.yarmouth for summer hols and maybe another ramsgate run in august.
Gonna be an expensive diesel year......

NBAS--The communal colostomy bag of the boating community.
Visit leomagill.co.uk
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