Boat feels bogged down before getting on plane
Submitted by beau on Thu, 2019-11-28 17:05
Hey guys as title suggests, my boat feels "bogged down" in the water from about the 4-8knot range while just cruising.
In this speed range the ass end drops and the nose picks up like it wants to take off on the plane, motor almost sounds like it's over revving for the speed the boat is actually going, and the wake coming off the back is considerably larger than all the other boats around me whilst traveling through the marina. Once on the plane everything seems sweet.
Boat is a 5.2m side console ali with a 115hp suzi on the back. The suzi is the max rated hp for this hull. I dont think forward ballast is the answer as it rides relatively flat once on the plane.
Could a hydrofoil, prop change, or trim tabs be the answer?
____________________________________________________________________________
VIC DORY
Posts: 308
Date Joined: 28/05/15
Sounds pretty normal, have
Sounds pretty normal, have you tried trimming down a bit more, most boats ride ass heavy until up on the plane and any boat on the plane isn't doing less than 8 knots.
beau
Posts: 4104
Date Joined: 24/01/10
I'm usually trimmed all the
I'm usually trimmed all the way down until on the plane
VIC DORY
Posts: 308
Date Joined: 28/05/15
Lifting strakes generally
Lifting strakes generally don't take effect until around 10 knots, pretty normal for your stern to bog down.
ROCKPOM
Posts: 625
Date Joined: 23/04/07
Check your prop bush Beau
Check your prop bush Beau
Brock O
Posts: 3163
Date Joined: 11/01/08
Not full of water under
Not full of water under floor..
still trying
Posts: 1020
Date Joined: 27/06/17
I have similar problems with
I have similar problems with my 4.2 but have held off on doing anything because it goes so much better when out of the marina. Handles great with no worries about speed.
rather be fishing
beau
Posts: 4104
Date Joined: 24/01/10
Likewise but this time of
Likewise but this time of year i don't mind throwing the lures out the back for a few hours and notice it more than the rest of the year
still trying
Posts: 1020
Date Joined: 27/06/17
That makes alot of
That makes alot of difference if I hit a it of swell going slow it just makes the situation alot worse and you have to gun it abut just to get the nose back down. Sometimes you wonder how am I so ass heavy all of a sudden.
rather be fishing
beau
Posts: 4104
Date Joined: 24/01/10
I asked the same question on
I asked the same question on a Facebook page of a community of boat owners who own similar styles of side and centre consoles, it's a 100% recommendation of a hydrofoil
Scotte
Posts: 1142
Date Joined: 07/12/06
The hydrofoil will lift the
The hydrofoil will lift the transom so as long as you can run more nose up trim in a following sea without venting the prop you should be alright because you will need a bit more nose up trim with the hydrofoil than you need without it.
dodgy
Posts: 4563
Date Joined: 01/02/10
8 knots is always a fairly
8 knots is always a fairly awkward speed. Your hull is transitioning from displacement to planing and isn't comfortable in the middle.
Does anyone know where the love of god goes, when the waves turn the minutes to hours?
beau
Posts: 4104
Date Joined: 24/01/10
Yeah but even 4-8knots I have
Yeah but even 4-8knots I have the same problem as at 8knots. So even trolling i start worrying about the strain the motor sounds like it is under
Silver Fox
Posts: 1097
Date Joined: 19/06/14
Hydrofoil
Will fix your blues Beau . Added one to my centre console and it made a world of difference! . You won't be dissatisfied.
My wife understands why I clean my rods n reels in the shower....
little johnny
Posts: 5330
Date Joined: 04/12/11
Sports 3000
Or prop change . I use 2 different props. 1 for deep . ( lower revs slow out of hole) 1 for close .quick out of hole less top end
scotto
Posts: 2470
Date Joined: 21/04/08
Not good
Sounds like your boat and motor are rooted Bobo.
Your best bet is to buy a bigger boat
beau
Posts: 4104
Date Joined: 24/01/10
So that's how you keep
So that's how you keep getting away with these upgrades eh!
lee_h
Posts: 5
Date Joined: 19/01/18
maybe try an outboard wedge
maybe try an outboard wedge to allow the motor more trim in.
i did that and foils on my old centre console.