Caproni Ca.91
# Caproni Ca.91

The Caproni Ca.91 was a proposed Italian flying boat designed by Caproni.

## Design and development

Like the Caproni Ca.90, the Ca.91 had three tandem pairs of 1,000 hp (746 kW) Isotta Fraschini Asso 1000 W-18 inline piston engines, but all three pairs were mounted on the lower wing.

## Specifications

Data from

General characteristics

* Crew: 7
* Length: 31.30 m (102 ft 8 in)
* Upper wingspan: 34.90 m (114 ft 6 in)
* Lower wingspan: 46.60 m (152 ft 11 in)
* Height: 9.80 m (32 ft 2 in)
* Wing area: 500 $m^2$ (5,400 sq ft)
* Empty weight: 13,000 kg (28,660 lb)
* Gross weight: 17,000 kg (37,479 lb)
* Max takeoff weight: 30,000 kg (66,139 lb)
* Powerplant: 6 × Isotta Fraschini Asso 1000 W-18 water-cooled inline piston engines, 750 kW (1,000 hp) each

Performance

* Maximum speed: 200 km/h (120 mph, 110 kn)
* Endurance: 7 hours
* Service ceiling: 4,000 m (13,000 ft)
