Copyright 2011 CONRAD YACHTS All Rights Reserved
Hull Characteristics.
The hull can be best described as a modified constant deadrise form, the most
trusted and well behaved hullform ever developed.
2.  Relatively high deadrise at transom(16 degrees), makes her much more comfortable
in sea way than the majority of boats this size.
3. The innovative, variable width chine flats are wide aft, gradually narrowing , from
amidships forward. The wide chine flats aft give the hull extra lateral stability, while
narrow chine flats forward, allowing the hull to move through the water,  prevent it from
slamming against oncoming chop.
4.  The hull is 16.5 feet long.
5.  The Tuna 16 hull is equipped with a "delta pad", for better lift.
Tuna 16 TC - #04
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  • Hull length
16.5 feet
  • LOA
16.5 feet
  • Beam
6.5 feet
  • Draft - hull only
9 inches
  • Draft - engine leg down
22 inches
  • Deadrise at transom
16 degrees
  • Minimum cockpit depth - no rail
24 inches
  • Fuel capacity
16 USG
  • Power - single or twin
40-90 hp
  • Capacity ( people)
  • Approx. aluminum weight
1,000 lb
  • Design displacement
1,800 lb
1. All  major hull structure components are designed and calculated to conform to the requirements of ABS
(American Bureau of Shipping).
2. The maximum beam is 6.5'.
3. Whenever possible, welds are avoided.
Each hull half is one piece, so are side plates. This approach yields a much fairer hull.
4. The hull is framed longitudinally, which, again, produces a fairer hull, eliminating the "hungry horse" look of many
metal boats.
5. The structure consists of longitudinal girders and transverse frames, which “egg crate” into one another to make
assembly quick and accurate.
6. I believe in being able to access and remove the fuel tank(s), if necessary, even after the boat is completed. This is
accomplished by locating the fuel tank under a “soft patch” in the cockpit sole.
7. Alloys used are all top marine grade 5000 series.
Bottom - 5/32"   - 5086 H116
Sides    - 1/8" - 5086 H116
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Click the icon on the left, if you need to download the free Adobe reader,
necassary to view pdf drawing files.
Assembly Drawings:                          
( for
detailed construction study only )
Digital Package:                                             
  1. Assembly drawings.
  2. Parts list.
  3. Nest.
  4. The use of the cutting files-CNC cutting.     
please enquire
  1. All plate parts, cut and formed.
* Does not include tubing, cleats etc.
** Pending current price check at time of purchase
please enquire
1. Recommended power for this hull is from 40 hp to 90 hp, single installation.
2. Custom alterations will be considered (additional and/or different configuration of lockers or seating).
3. The boat fulfills the ABYC and ISO requirements for swamped stability and unsinkability.
Other Features.
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