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BHC BH.7 - 1/16 scale

These models use a centrifugal lift fan that I designed and built myself. The fan is 8.625" in diameter, and is designed to run at 3,500rpm.
At this speed the motor consumes 176W of power. According to my calculations, the fan performance is:

Pressure: 33lb/sq ft at zero flow
Flow: 25 cu ft/sec at zero pressure

The motor is quoted by the manufacturer as being 81% efficient, so when consuming 176W it is delivering 151W to the fan. If the fan was 100% efficient, it could deliver 21 cu ft/sec and 5.22 lb/sq ft at this speed. The fan would be delivering 81% flow.

BH.7 fan
BH.7 fan.