Fi 158
The Fi 158 at Kassel-Waldau Airfield
Role	Research aircraft Type of aircraft
National origin	Germany
Manufacturer	Fieseler Flugzeugbau Kassel
First flight	9 March 1938
Number built	1
Developed from	Fieseler Fi 157

The Fieseler Fi 158 was a civilian research aircraft designed and built in Germany from 1938.

Design and development

Designed as a manned version of the Fi 157 radio-controlled drone, the Fi 158 was a low-winged monoplane built largely of wood, with retractable tailwheel undercarriage and twin fins and rudders, with the crew sat in tandem in an enclosed cabin. Limited flight testing was carried out before the prototype was destroyed in an air raid.

Specifications (Fi 158 V1)

Data from Aircraft of the Third Reich^[1]

General characteristics

• Crew: 1 or 2 (sources differ)
• Length: 6.6 m (21 ft 8 in)
• Wingspan: 7 m (23 ft 0 in)
• Height: 1.7 m (5 ft 7 in)
• Wing area: 7 m² (75 sq ft)
• Empty weight: 494 kg (1,089 lb)
• Gross weight: 646 kg (1,424 lb)
• Powerplant: 1 × Hirth HM 506A 6-cyl. inverted air-cooled in-line piston engine, 119 kW (160 hp)
• Propellers: 2-bladed variable-pitch propeller

Performance

• Maximum speed: 350 km/h (220 mph, 190 kn) at sea level
• Cruise speed: 300 km/h (190 mph, 160 kn)
• Range: 370 km (230 mi, 200 nmi)
• Service ceiling: 6,700 m (22,000 ft)
• Rate of climb: 8.33 m/s (1,640 ft/min)
• Time to altitude: 1,000 m (3,281 ft) in 2 minutes