I saw a similar discussion on the A|W Maya discussion boards and here is a quote: Re: motor boat trail !? (msg # 1.) I would try using "Wake" Dynamics. After making a Particle Grid, Goto: Fields>Create Air>[Option Box], Wake. You will need to configure you Dynamic Relationship, but this should get you on the right trail. lawrence fletcher 02.11.03 - 12:25 am Posts: 166 Re: motor boat trail !? (msg # 2.) Another approach is to make the water (Plane) a Softbody, and add Springs. Then Connect the boat (Passive rigidBody) as a collision object and animate it through the water. Combine various Effects (Power permitting) Note: I'm using Maya Complete 2.5. no fluid effects -Emo