Pneumatic boats

DETAILED DESCRIPTION I claim: 1.
An inflatable boat comprising two inflatable elongate legs drawing together at corresponding first ends thereof to form a bow portion of the boat, each leg comprised of a first part that is at least substantially parallel with the first part of the other leg and a second part which is connected with the corresponding second part of the other leg to form a part of said bow, each first part comprised of an upper compartment and of a lower compartment each said upper and lower compartments having at least a substantially circular cross section and fixed to the other compartment along a circumferential zone, said upper compartment having a cross section greater than the cross section of said lower compartment; a rearwardly located transom connecting the other ends of said two legs together, said transom being adapted to receive a motor; a lateral sheet fixed tangentially to said two upper and lower compartments on the outer sides of each leg; said upper and lower compartments of each leg being dimensioned and disposed with respect to each other so that the angle formed by said lateral sheet and the horizontal plane is between 5.
degree.
and 45.
degree.
; a floor rigid in the transverse direction and engaging the lower face of said upper compartment; a bottom sheet fixed to said legs at the connection between the upper and lower compartments of said legs; and a keel interposed between said floor and said bottom sheet, the diameters and size of said lower compartments being such that said bottom sheet contacts the water when said boat is floating.
2.
A boat as claimed in claim 1 in which the angle formed by said lateral sheet and the horizontal plane is between 5.
degree.
and 25.
degree.
.
3.
A boat according to claim 2 in which the angle formed by said bottom sheet and a horizontal plane is close to 15.
degree.
.
4.
A boat according to claim 1 in which the angle formed by said bottom sheet and a horizontal plane is close to 15.
degree.
.
5.
A boat as claimed in claim 1 wherein each of said two lower compartments are fixed to the corresponding upper compartments at a location and each lower compartment having a respective diameter with respect to the upper compartment such that said lateral sheet mounted on the outer sides thereof converge toward a line situated below said boat