With a hull size of 7 feet by 12 1/2 or 14 feet, Vanguard is the baseline sev for the new Sevtec series of sevs, and uses the Briggs and Stratton 16 to 22hp Vanguard V twin engines.
With a top speed of 32mph and fuel use of less than 3/4 gallons per hour, this sev can haul over 550lb payloads over big and small waters and has exceptional athletic abilities over rough terrain.
Plans and instruction manual are available for $46US, including first class postage, US, Can. Mex. (Foreign, add $3.) CriticalParts for Vanguard such as propellers, fans, skirt material, drive hardware and foam for the composite hull construction are available from Sevtec.
Total cost of construction, including engine and critical parts kits for Vanguard is $2200 to $2900, and some 120 to 400 man hours.
Three view drawing and Performance plots (You can save the drawing if you wish for viewing off line even if you cannot view it on line just by hitting the save button upper left in the window. Click go away box upper left on the window frame to return to this page. The drawing size is 47K.)