2017 Puma FTD leaning

This topic has 8 replies, 5 voices, and was last updated 8 years, 8 months ago by Bass Cat Boats.

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October 1, 2017 at 4:37 pm #461028

Barbarian
Participant

As title says – my 2017 Puma FTD has always leaned (not pulls – leans) very noticeably to the left after getting on plane. It levels off as I trim up and technically has zero effect since it goes away with mild trim, but it is odd. Ive owned several bass boats over the years and have never noticed anything similiar. It seems extremely well balanced running at very high speeds so Im curious if this normal?

October 1, 2017 at 5:15 pm #461029

Bass Cat Boats
Keymaster

Barbarian wrote:As title says – my 2017 Puma FTD has always leaned (not pulls – leans) very noticeably to the left after getting on plane. It levels off as I trim up and technically has zero effect since it goes away with mild trim, but it is odd. Ive owned several bass boats over the years and have never noticed anything similiar. It seems extremely well balanced running at very high speeds so Im curious if this normal?I have owned 5 cats of various models. They have all done this. No harm, but also wonder why.

October 1, 2017 at 5:34 pm #461030

Bass Cat Boats
Keymaster

It is Offsetting propeller oscillation. It requires you to trim to get things leveled on the hull pressures. To make a Bass Cat run dry, ride like it does and perform in both rough water as well as on top end, these aspects have to be built in.

October 1, 2017 at 7:32 pm #461031

billius
Participant

Every Cat Ive had has done that. My Caracal leans to the left when taking off and then leans to the right when you come off plane.

October 1, 2017 at 8:39 pm #461032

Barbarian
Participant

Bass Cat Boats wrote:It is Offsetting propeller oscillation. It requires you to trim to get things leveled on the hull pressures. To make a Bass Cat run dry, ride like it does and perform in both rough water as well as on top end, these aspects have to be built in. Thanks. Makes sense and Im sure I speak for many BCB owners when I say thank you for doing so many of the little things like this that we have no idea of that allow us to enjoy our boats even more.

October 2, 2017 at 10:06 am #461033

Cajunhunter67
Participant

My BCBs have only done this when I have another angler in the passenger seat.Im sure boat load balance has a little to do with it. As stated above, once on plane the lean disappears.With just me in the boat, I have never had this issue unless the jack plate was too low.

October 2, 2017 at 12:48 pm #461034

beast
Participant

I would think it is due to prop torque which is normal. Just think of Newtons 3 Law. For every action there is an equal and opposite reaction. As the prop spins clockwise (to the right as viewed from the back) the opposite reaction is for the boat to roll to the left. From there I would assume the engine mounting and the design of the hull would be so that the boat would perform at its peak when trimmed out at high RPM. Just a layman thought though.

October 2, 2017 at 4:38 pm #461035

Bass Cat Boats
Keymaster

YUP !! Just plain ol physics at work , as stated above .

October 2, 2017 at 10:40 pm #461036

Bass Cat Boats
Keymaster

Thats somewhat accurate, though we can adjust the cant for propeller torque in the hull. Propellers turning right usually pull cause the hull to go right, thus the effect to the left on the hull. BCB
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