Tom,TomW1 wrote: ↑Wed Apr 12, 2023 11:28 amYes sir Jeff just finished running the PH22 with Yamaha's 115 since they don't have a 125 and the 150 for the PH22 at 2200lbs which is a 1000lbs over Jacques hull weight a 115 will be around 45 and a 150 is around 52mph. Will let Browndog decide how fast he wants to go. I helped him prop his earlier boat, still have it in my files.
Thanks for running your projections. I appreciate the help you gave me on the FS 19 project.
The Yamaha 200 HP in line 4 four stroke outboard and the 150 HP digital are built on the same 2.8 Liter engine block and weigh about the same. I’m considering that might be the motor I would put on the Phantom 22.
Been reviewing what info. there is from build threads of the PH 18 and how they’ve been powered and the one thread of the PH22.
I saw that a prospective builder wanting to build the PH 22 with a larger than specified motor decided not to proceed with the project. I understand he was contemplating building with a foam core which complicated his project.
I would intend to build the boat as designed for marine plywood, fiberglass and epoxy. As I did with the FS 19, every exposed surface of the boat will be covered in fiberglass. At a minimum 4 oz cloth on non structural exterior surfaces.. Understandably this will add some weight to the hull due to the increased cloth and resin.
Wondering what if any changes do you think would be necessary to the fiberglass layup schedule of the hull, frames and/or stringers to accommodate the increased power and speed.
Would anticipate adding perhaps an extra layer of glass on the bottom of the hull? On the inside of the hull? On the keel and chine seems?
Also I will definitely install spray rails and/or reverse chines to the hull as well. Possibly lifting strakes and a keel strip.
Not sure who to ask with Jacques gone now. Hopefully Jeff will chime in too.