New for 1997, the Sea-Doo Challenger 1800 jet boat from Bombardier features twin 800 Series Rotax marine engines, each of which displaces 782 cc and delivers 110 hp. A variable-rate oil injection system provides a precise ratio of oil to fuel, ensuring proper engine lubrication throughout the performance envelope. The Bombardier axial-flow, single-stage Formula Water Jet system is designed to work reliably in salt or fresh water. Bronze alloy stator vanes resist erosion caused by cavitation. Floating couplings with crowned splines minimize vibration damage to engine and pump. The progressive-pitch drive impellers are stainless steel and produce improved acceleration over earlier models, a higher top speed, and less cavitation. Replaceable urethane wear rings improve impeller life and are easy to maintain. Finally, a sacrificial zinc anode protects the propulsion system from corrosion.
| Dimensions | |
| Overall length: | 17'11" |
| Beam: | 7'06" |
| Draft: | 1'02" |
| Dry weight: | 1,950 lb |
| Rider capacity: | 7 persons |
| Load limit: | 1,100 lb |
| Fuel capacity: | 40 gal |
| Oil capacity: | 2 gal |