Piranha flats Alvo F1700 is a 17’ flats boat that rides like a bay boat. The V hull carries through to the transom, making it extremely stable with a large forward casting deck. Walk the gunnels or stand on the edge and this fishing platform barely moves. Four of the storage compartments are configurable prior to purchase (plumbed, insulated, or dry). The 1700 is a great boat for stalking your inshore target species or heading out with the family to hit the sand bar.