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A watercraft has a hull having a bow, a deck disposed on the hull, an engine connected to the hull, a propulsion system operatively connected to the engine, a first bow sponson disposed on a starboard side of the bow, and a second bow sponson disposed on a port side of the bow. A sponson suitable fo

A watercraft has a hull having a bow, a deck disposed on the hull, an engine connected to the hull, a propulsion system operatively connected to the engine, a first bow sponson disposed on a starboard side of the bow, and a second bow sponson disposed on a port side of the bow. A sponson suitable for use on a bow of a watercraft is also disclosed.

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1. A watercraft comprising: a hull having a bow;a deck disposed on the hull;a straddle seat disposed on the deck;an engine connected to the hull;a propulsion system operatively connected to the engine;a first bow sponson disposed on a starboard side of the bow, a rear of the first bow sponson being

1. A watercraft comprising: a hull having a bow;a deck disposed on the hull;a straddle seat disposed on the deck;an engine connected to the hull;a propulsion system operatively connected to the engine;a first bow sponson disposed on a starboard side of the bow, a rear of the first bow sponson being disposed forwardly of a front of the straddle seat; anda second bow sponson disposed on a port side of the bow, a rear of the second bow sponson being disposed forwardly of the front of the straddle seat, the first and second bow sponsons being disposed externally of the hull;each of the first and second bow sponsons including: an inner member and an outer deflector connected to the inner member such that the inner member is disposed laterally between the bow and the outer deflector,the outer deflector extending vertically below the inner member such that a channel is formed by the outer deflector, a lower surface of the inner member and the bow,a forward portion of the outer deflector extending a first distance vertically below the inner member, a rear portion of the outer deflector extending a second distance vertically below the inner member, and the second distance being greater than the first distance. 2. The watercraft of claim 1, wherein the first and second bow sponsons are disposed on a portion of the hull converging toward a longitudinal centerline of the watercraft. 3. The watercraft of claim 1, wherein a front of the first bow sponson is spaced from a front end of the hull; and wherein a front of the second bow sponson is spaced from the front end of the hull. 4. The watercraft of claim 3, wherein the front of the first bow sponson is laterally spaced from the front of the second bow sponson. 5. The watercraft of claim 1, further comprising: a first rear sponson disposed on a starboard side of the hull rearwardly of the first bow sponson; anda second rear sponson disposed on a port side of the hull rearwardly of the second bow sponson. 6. The watercraft of claim 1, wherein the first and second bow sponsons are disposed vertically below an upper edge of the hull. 7. The watercraft of claim 6, wherein the hull has a lip extending laterally outwardly from the upper edge of the hull; wherein an upper end of the first bow sponson abuts a lower surface of the lip; andwherein an upper end of the second bow sponson abuts the lower surface of the lip. 8. The watercraft of claim 7, wherein each of the first and second bow sponsons has an inner surface facing the bow; and wherein lower ends of the inner surfaces of the first and second bow sponsons abut the bow along their entire lengths. 9. The watercraft of claim 1, wherein each of the first and second bow sponsons has an inner surface facing the bow; and wherein inner surfaces of the first and second bow sponsons abut the bow. 10. The watercraft of claim 9, wherein the inner surfaces are arcuate inner surfaces; wherein the arcuate inner surfaces are complementary in shape to curvatures of the bow at locations where the bow sponsons are disposed. 11. The watercraft of claim 1, wherein a lateral cross-section of each of the first and second bow sponsons has a concave lower surface. 12. The watercraft of claim 1, wherein for each of the first and second bow sponsons, at least a portion of the outer deflector is fastened to the inner member. 13. The watercraft of claim 12, wherein for each of the first and second bow sponsons, at least the portion of the outer deflector can be fastened to the inner member in a plurality of positions. 14. A sponson comprising: an inner member having an inner lateral surface, an outer lateral surface, and a lower surface, the inner lateral surface having a concave arcuate profile, the concave arcuate profile being adapted to be complementary in shape to a curvature of a bow of a watercraft at a location where the sponson is to be disposed on the bow; andan outer deflector having at least a portion connected to the outer lateral surface of the inner member, a first portion of the outer deflector extending a first distance beyond the lower surface of the inner member, a second portion of the outer deflector extending a second distance beyond the lower surface of the inner member, the second distance being greater than the first distance, the second portion being closer to a rear of the outer deflector than the first portion, the first and second portions of the outer deflector and the lower surface of the inner member being adapted to form a channel together with the bow when the sponson is disposed on the bow. 15. The sponson of claim 14, wherein the lower surface has a concave lateral cross-section. 16. The sponson of claim 14, wherein the concave arcuate profile of the inner lateral surface is a longitudinal concave arcuate profile.