Unstable 5.1 m ali
Submitted by Postie on Thu, 2020-04-09 13:17
My 5.1 m allly craft is very unstable on the water. I suspect that the Honda 75 HP 4 stroke is too heavy for the vessel !!!
Maybe downsize to smaller motor, even to 50 HP two stroke !! Moving from side to side is a big issue. !!
Any suggestions
squidvicious1
Posts: 821
Date Joined: 22/07/10
Unstable at rest or on the
Unstable at rest or on the plane.
Postie
Posts: 3
Date Joined: 29/11/19
Unstable
Hi squidvicious1,
Unstable at rest, can't have two people on one side, otherwise in danger of falling over side !!
trymyluck
Posts: 908
Date Joined: 06/05/12
Is there a canopy? It can
Is there a canopy? It can change the centre of gravity.
Postie
Posts: 3
Date Joined: 29/11/19
No canapy
No canapy
quadfisher
Posts: 1146
Date Joined: 28/09/10
Stay low and pray!
Yeah first question as above , at rest?
I have a 4.95m haines profish with the good old 20 degree deadrise., and at speed its fine and seems stable on waves etc
At rest however you are never going to get it to sit flat like a 15 or 16 degree hull. ( but mine rides like a 5.8 boat)
But with now 18 months of use I have become used to its feel and although its first few degrees of list happen quite quickly it then settles
and seems safe to me , and Im not talking about in the river , had it miles out to sea in some less than perfect days and never had a drama.
My fishing buddy and me have become used to physical distancing to each other long before it came a thing.
And I would have to believe haines wouldnt release a boat to market thats inherently unstable and thus I have proved it to myself.
I have a 4 stroke 70 on it but its rated to a 90, by my reasoning a slighty larger motor on the keel line should help sideways stabilty.
If yours unstable underway I dont have any tips , but in mine i keep the 90 l belly tank mainly full and store all heavier items along the keel line.
quadfisher
beeroclock
Posts: 733
Date Joined: 22/08/12
Put a boat collar on it
they are made in Queensland from memory. You can do it yourself. Search Kapten boat collar and see them in action. Prob cost aroud 2 grand. Just a thought cheers dave
beeroclock
Posts: 733
Date Joined: 22/08/12
Sorry forgot to add you can also add transom floatation to the
back to counter the heavy motor and fisho's standing in the back at rest
carnarvonite
Posts: 8627
Date Joined: 24/07/07
Photos
Add a few photos showing the shape of the stern plus another showing if you have a canopy or rocket launcher as both of these can greatly affect stability
scubafish
Posts: 949
Date Joined: 15/08/12
try
https://www.youtube.com/watch?v=u-ntCGakMl4
http://img.gg/BQ91Sys
Striker101
Posts: 23
Date Joined: 20/03/20
Try a fibreglass 5.1 metre
Try a fibreglass 5.1 metre ;)
22195
Tim
Posts: 2497
Date Joined: 26/09/06
Photos
Really need photos of it on the water
I dont reckon the 75 is too heavy. Should be about right.
Sometimes it can be its not heavy enough and is not sitting on the chines at rest
Jadeo
Posts: 269
Date Joined: 08/06/15
May sound like a silly
May sound like a silly question, but have you checked to make sure there is no water sloshing around in the hull. Mate of mine had the same issue a few years back. Turned out he had some water in there changing the centre if gravity.