Inflatable motor kayak B450 made by St. Petersburg firm Bratan is 450 cm long, 100 cm wide. The boat could be used with outboard motor up to 5 hp.
The speed of the boat with 1 person rowing is 4-4,5 km/h. With a better kayak type paddle the speed should be higher.
The boat bottom and transom do not reach the water surface
The B450 boat upside down
With the 1,6 hp jet-motor Kalmar the boat goes 8 km/h
This boat is of catamaran type – if the boat is not overloaded, its bottom is not touching the water
With Kolibri air-engine (3 hp) the boat goes 9 km/h