Hi everyone

I am working on my graduation project which is hovercraft, and i am using integerated system. The fan i got is 80 cm dia. and has 5 blades and the available power is 13 hp @ 3600 rpm.

I am sure that it is going to produce a good thrust, but here i am worried about the lift, i want a pressure of about 0.02 bar ( gauge ), and i dont know any data about this fan, so i was asking: how can i calculate the pressure ratio of this fan in terms of power, speed, blade cross section and diameter to know if the lift will be succsesful or not.

I am also sure that it will produce the required flow rate, but here i am concern about the pressure.

please need help .