FS18 - new build - foam&carbon fiber

[TomW1]

Engine choices:
20 HP four stroke, @110 lbs, or
30 HP four stroke, @160 lbs.
What top speeds would you expect in either case?

I could give you those numbers. if I knew what the boat would weigh as it left the dock, people gear etc. Which brand of motor will you be using.

Tom

[JoRoesler]

Engine choices:
20 HP four stroke, @110 lbs, or
30 HP four stroke, @160 lbs.
What top speeds would you expect in either case?

I could give you those numbers. if I knew what the boat would weigh as it left the dock, people gear etc. Which brand of motor will you be using.

Tom

Let's assume 350 lbs for the boat, plus engine, plus 400 for people and equipment. The boat is 18 ft long but only 54" wide.

[fallguy1000]

What are you doing at the hull bottom/hull side interface and the hull side/hull deck interface(s)?

Gaps in the foam will be filled, and inside joints will be tabbed with 45/45 diagonal carbon tape.

That is not the proper hull bottom to hullsides interface.

The foam can crush. Now, at the engines you've chosen less an issue. But. The way to avoid it is well published.

[TomW1]

Engine choices:
20 HP four stroke, @110 lbs, or
30 HP four stroke, @160 lbs.
What top speeds would you expect in either case?

I could give you those numbers. if I knew what the boat would weigh as it left the dock, people gear etc. Which brand of motor will you be using.

Tom

Let's assume 350 lbs for the boat, plus engine, plus 400 for people and equipment. The boat is 18 ft long but only 54" wide.

Jo about 30mph for the 20HP using Yamaha specs, you gain only 4mph to 34mph with the 30HP Yamaha. Jacques does not recommend more than 25HP which would put you at around 32mph. The 20 comes with a prop the 30 will need you to add a prop.

Tom

[JoRoesler]

Some progress has been made:
/Users/joeroesler/Pictures/Photos Library.photoslibrary/resources/derivatives/D/DD1680E4-B438-47AE-B364-954B505FEB24_1_105_c.jpeg

[JoRoesler]

More pics:

[img]https://photos.app.goo.gl/1ojkSs8R2m2KPo4F9/img]

[JoRoesler]

[img]/Users/joeroesler/Pictures/Photos Library.photoslibrary/resources/derivatives/5/58C0A2C1-C307-4BBB-A925-FACCAE641BB7_1_105_c.jpeg/img] Preparations for the jack plate.

[JoRoesler]

[JoRoesler]

/Users/joeroesler/Pictures/Photos Library.photoslibrary/resources/derivatives/7/7EAE8A78-4583-4C1D-8B92-AD4B5EB53B54_1_102_o.jpeg

[cape man]

And then there appeared a boat...