Strange handling

[rubberduck]

Took the boat out for 1st test run this year today, we've been busy at work which has gone potty, & kids have been doing degrees at Cambridge etc so its taken a back seat this year. We plan to go either up the Thames again, or the south coast in August, so want the boat behaving.
To start with today, she didn't want to plane, with port engine revving 1500 & starboard 2500. Had a twiddle with the leg trim, & then port side came to life & matched starboard revs, up she went & got up to about 35 knots, which is about right allowing for a little growth, top end is about 38. Subsequent efforts had the boat leaning heavily to right, even in a left hand turn. Cured with trim tabs but a little strange, any ideas.

 

[sarabande]

water tanks, fuel tanks... Does she float level when stationary ?

 

[rubberduck]

Level when still & at low speed, just on plane it does this.

 

[sarabande]

are the trim and tab sensors telling the truth ?


I recall a thread some time ago when a dial said Zero trim and the owner could see is was telling porkies.

 

[rubberduck]

Tabs have no gauges, so just by "feel" which seems ok after many tests, Volvo trim seems ok according to gauges, & a visual check on legs behaviour after we moored back up.

 

[rubberduck]

I was wondering if it could be more power from one side, but then presumably the revs would be different.

 

[[2068]]

If the starboard trim indicator was telling lies, then that would match what you are seeing ... if the starboard leg was raised a bit when it should be fully down.

 

[rubberduck]

After wondering about leg issues etc as experienced before, turned out to be a simple trim tab problem, both now replaced & ready to go .