Lowspeed tracking problem

[Mattias75]

and the boats weight is about 9 tons

[TeddyDiver]

That's the reason for your problem, thou you didn't say the tank capacity. Just for to test it take it one time for a ride with (allmost) empty tanks to see how much it changes..

[Mattias75]

Originally Posted by TeddyDiver

That's the reason for your problem, thou you didn't say the tank capacity. Just for to test it take it one time for a ride with (allmost) empty tanks to see how much it changes..

i did ands its not a big diffrence
and the same with emty and full watertank
w tank about 200l
fuel 750l

[tunnels]

JUST A thought but have you tried running one motor slightly faster than the other by just a few hundred rpms but one fighting against the other works with Cats to hold steady . Also toe out rather than toe in has more of a tendancy to raise the bow !!!

I must say its the dumbest idea for the bottom of a boat i ever seem ,Sorry dont grasp what the hell the idea is ?? its not a tunnel drive because the props are to far away from the shape in the hull . its an abortion to say the least . It must have a terrible tendancy to suck the hull down when it is taking off and even at speed . it must still do the same

[Mattias75]

Originally Posted by tunnels

JUST A thought but have you tried running one motor slightly faster than the other by just a few hundred rpms but one fighting against the other works with Cats to hold steady . Also toe out rather than toe in has more of a tendancy to raise the bow !!!

I must say its the dumbest idea for the bottom of a boat i ever seem ,Sorry dont grasp what the hell the idea is ?? its not a tunnel drive because the props are to far away from the shape in the hull . its an abortion to say the least . It must have a terrible tendancy to suck the hull down when it is taking off and even at speed . it must still do the same

Im not know if you think about its duoprop and volvo tels in should be toe in for not geting cavitation

maby the best way puting a extention 4" and cloase the tunnel

[Mattias75]

Originally Posted by Mattias75

Im not know if you think about its duoprop and volvo tels in should be toe in for not geting cavitation

maby the best way puting a extention 4" and cloase the tunnel

Anybody think its a good idea to takeaway the tunnel and extension the drive?

The boat take alot of fuel about 4 l nm
My friend has a sealine 34 this boat is about 2 tons lighter but takets 2'5 l
With kad 43 and that is same engine
Maby the sealine dont have 22 d deadris as my Princess have

Sugestion?