The Tridarka Raider

A Trimaran for Coastal Vagabonds

Hydrostatics

Vaka At Design Load
650 lb. Total Displacement
Vaka Upright, 0 Righting Moment
(Picture at anchor in a protected lagoon.)
  Vaka Ama Total
Displacement: 650 lbs. 0 650 lbs.
Wetted Surface*: 33.4 sqft 2 * 1.6 sqft 36.8 sqft
Draft: 8.4" 1.2" 8.4"
cP: .605    
LCB: .534 L    
Vaka At Design Load
650 lb. Total Displacement
Max Righting Moment, Vaka Lifting (18 degree heel)
(Are we having fun yet?)
  Vaka Ama Total
Displacement: 0 650 lbs. 650 lbs
Wetted Surface*: 0 20.4 sqft 20.4 sqft
Draft: 0" 14.5" 14.5"
cP:   .661  
LCB:   .507 L  
Vaka At Max Load
1250 lb. Total Displacement
Vaka Upright, 0 Righting Moment
(At anchor in a protected lagoon with the family.)
  Vaka Ama Total
Displacement: 1100 lbs. 2 * 75 lbs. 1250 lbs
Wetted Surface*: 44.7 sqft 2 * 9.8 sqft 64.3 sqft
Draft: 11.7" 5.5" 11.7"
cP: .634    
LCB: .534 L    
Vaka At Max Load
1250 lb. Total Displacement
Max Righting Moment, Ama Submerged (20 degree heel)
(A bit scary now - might want to reef this sucker?)
  Vaka Ama Total
Displacement: 237 lbs. 1013 lbs. 1250 lbs
Wetted Surface*: 19.8 sqft 56.7 sqft ** 76.5 sqft
Draft: 5.1" 22.1" 22.1"
cP:   .661  
LCB:   .452 L  
* Wetted surface of hulls only, excluding rudder and leeboard
** Excluding submerged ama deck and akas

Adventure Races
for Sailing:
 
WaterTribe Everglades Challenge

WaterTribe Ultimate Florida Challenge