Hirtenberg HV.15
# Hirtenberg HV.15

The Hirtenberg HV.15 was a twin-engine Austrian monoplane produced by Hirtenberg.

## Design and development

The HV.15 was the company's first twin-engined aircraft, originally made for the civilian market. Designed for mass production, the aircraft was planned to be a passenger aircraft or light transport. The HV.15 first flew on March 8, 1936, powered by the most powerful engines available to Austria at the time, a pair of Siemens-Halske Sh 14A rotary engine, each producing 160 hp (119 kW).

## Specifications

General characteristics

* Crew: 2
* Capacity: 4 passengers
* Length: 10.65 m (34 ft 11 in)
* Wingspan: 15 m (49 ft 3 in)
* Height: 2.9 m (9 ft 6 in)
* Wing area: 33 $m^2$ (360 sq ft)
* Empty weight: 1,550 kg (3,417 lb)
* Gross weight: 2,200 kg (4,850 lb)
* Powerplant: 2 × Siemens-Halske Sh 14A radial engine, 120 kW (160 hp) each

Performance

* Maximum speed: 235 km/h (146 mph, 127 kn)
* Cruise speed: 198 km/h (123 mph, 107 kn)
* Range: 900 km (560 mi, 490 nmi)
* Service ceiling: 5,200 m (17,100 ft)
