I/O (Sterndrive) Conversion to Outboards

[Scott Danforth]

I'm going with 425-435

 

[Jmunk]

This is an immense amount of work and I commend you for your attention to detail and the amount of research you’ve put into it. Your drawings are professional and I hope the N.A. was impressed with your knowledge and skill set.

I’ll wager a guess at 412lbs.

 

[redneck joe]

IDK . . . but I'll say 420 . . .

Now that there is a number that makes me happy....

 

[tpenfield]

This is an immense amount of work and I commend you for your attention to detail and the amount of research you’ve put into it. Your drawings are professional and I hope the N.A. was impressed with your knowledge and skill set.

Yes, the N.A. thought that I was "pretty much there" with my design and details. He said that he usually gets hand sketches to work with. Both of us being engineers, we spoke the same 'language', so the conversations went well.

The N.A. did a hydrostatic analysis using some specialized computer software and had these findings . . .

"Effect of the bracket:
The 42" extension of the hull adds planing area aft, which:

• Reduces hump-speed trim
• Improves acceleration
• Softens re-entry
• Reduces porpoising tendency in the 24 to 40 knot range

This aligns with the design intent and is consistent with the powering curves"

 

[tphoyt]

This should be all well worth the effort.