Heinkel HE 1
# Heinkel HE 1

The Heinkel HE 1 (aka Caspar S 1) was a two-seat, low-wing monoplane floatplane, designed in 1921 by German designer Ernst Heinkel at Caspar-Werke.

The HE 1 was produced under licence in Sweden for the Marinen (Swedish Navy) in 1921 as the Svenska S.2. The HE 1 was powered by a 179 kW (240 hp) Maybach Mb.IVa engine; one test aircraft was powered by a Siddeley Puma engine.

## Specifications

Data from

General characteristics

* Crew: Two (pilot & observer/gunner)
* Length: 12.65 m (41 ft 6 in)
* Wingspan: 18 m (59 ft 1 in)
* Height: 3.85 m (12 ft 8 in)
* Empty weight: 1,700 kg (3,748 lb)
* Gross weight: 2,320 kg (5,115 lb)
* Powerplant: 1 × Maybach Mb IVa 6-cylinder water-cooled inline piston engine, 190 kW (260 hp)

Performance

* Maximum speed: 160 km/h (99 mph, 86 kn)
* Service ceiling: 4,000 m (13,000 ft)
* Time to altitude: 1,000 m (3,300 ft) in 9 minutes

Armament 1 × flexible machine gun in rear cockpit

## Operators

### Sweden

* Swedish Navy
* Swedish Air Force
