Hi guys I've been trolling around your site and other sites for some time now so I think its time to post.
I bought a 4.7m Gemini Semi which is in a fair condition its rated for 60HP and came with a 60HP Johnson motor that besides needing to be rewired was in an excellent condition.
Over Easter weekend I decided to take a chance and launch it in the Vaal dam.
First few tries I had the bow right up in the air and after playing with the trim I got it to plane quickly without too much lift.
Anyways the wind was quite strong and there was lots of chop on the water I found that the boat would seem to dig in the bow and lurch to the side, I think they call it bow steering or chine walking. I would have to throttle right back and almost drop off the plane for this to stop.
My previous 3.6m Duck never did this but then it only had a 15hp motor.
Any ideas what I can do about this? or is a characteristic of this boat and hull design?
I bought a 4.7m Gemini Semi which is in a fair condition its rated for 60HP and came with a 60HP Johnson motor that besides needing to be rewired was in an excellent condition.
Over Easter weekend I decided to take a chance and launch it in the Vaal dam.
First few tries I had the bow right up in the air and after playing with the trim I got it to plane quickly without too much lift.
Anyways the wind was quite strong and there was lots of chop on the water I found that the boat would seem to dig in the bow and lurch to the side, I think they call it bow steering or chine walking. I would have to throttle right back and almost drop off the plane for this to stop.
My previous 3.6m Duck never did this but then it only had a 15hp motor.
Any ideas what I can do about this? or is a characteristic of this boat and hull design?