Mangusta Speedboat Built by Francis Miles

 
19' 6"   5.95
Max Beam: 7' 2.15
Hull Wt: 875 lbs 398 kg
Max HP: 250 IO or outboards
Fuel Capacity: 80 320 ltrs
Material: Epoxy-Glass Plywood Composite UK Epoxy Resins

Up
Started with the strongbacks, and frame alignment. Next, the stations are put in place and aligned with a laser through alignment holes.


Right
Scarfed as per your instructions, I never had any problems. Nice and strong fit.
 

Up
Stitched up! There are inevitably some mismatches, but you have to wiggle and fiddle a bit to sort this out. Bow took some bending to tie it together, needed help! 

Left
First round or seam taping after gap filletting. Boat after this is rigid.
   
 
Up After that, Fibreglassing the rest of the hull was hard work. 50 inch Biax cloth, all around, two layers. There are overlaps making up to 4 laters where it counts. It took time (Initial layer took me 8 hours, and I gave up, and had to come back and do the second layer after keying – Boy, I hated this sanding!)
Up 
Tapered Durian strakes added, and gla>ssed to stop checking and absorption. This process took a long time to get just right.

Right

Faired, and turned.

 
   
Left

The inside is subject to the same glassing routines as the outside. 2 layers overall. You can see how the overlap creates 4 layer strips longitudinally, tapering towards the bow, increasing the layers to 8 at the bow. (Biax is double layered, so actually, 16 FG layers at the bow!)
 


Right

Stations loosely fitted prior to filleting. Transom has been bulked out with biax to strengthen. This will now easily cope with my intended 140HP Outboard.
 

Left
Bow smoothed and faired
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Right
The tank arrives

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Left Tank recess
 





The tank dropped into placeRight
 
   





Left F'ard locker
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