Alter A.1

The Alter A.1 was a single-seat biplane fighter aircraft first flown in February 1917. Built by Ludwig Alter-Werke of Darmstadt to a design by Kallweit and Ketterer, the A.1 was very similar in concept to the Nieuport 11, but not an exact copy.^[1]

A.I
General information
Type	Scout
National origin	Germany
Manufacturer	Alter[1]
Designer	Kallweit and Ketterer
Number built	1
History
First flight	February 1917

Design and development

Powered by a 110 hp Goebel Goe II 7-cylinder rotary engine, the A.1 had I-type inter-plane struts and a wood-framed, fabric and plywood covered fuselage, armed with twin, synchronised 7.92 mm LMG 08/15 machine guns.

Development was halted following demonstration to the Idflieg (Inspektion der Fliegertruppe), who judged its performance inadequate and its construction overly flimsy.^[1]

Specifications (Alter A.I)

Data from Alter A.Ifr:Alter A.I

General characteristics

• Crew: 1
• Gross weight: 510 kg (1,124 lb)
• Powerplant: × Goebel Goe II 7-cylinder air-cooled rotary piston engine, 82 kW (110 hp)

Performance

• Maximum speed: 117 km/h (73 mph, 63 kn)
• Rate of climb: 3.91 m/s (770 ft/min)
• Time to altitude: 3,000m in 12.8min

Armament

See also

Aircraft of comparable role, configuration, and era

• Nieuport 11