Heinkel HE 1

what is it?

The Heinkel HE 1 or 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.

🔎How to recognise it: 1 piston engine with propeller · 18 m wingspan

base stats

• speed 160 km/htop speed
• size 2,320 kgmax take-off weight
• built 11made in total

Bars compare against all aircraft: 3,500 km/h, 20,000 km, 850 seats; size and number built on a log scale up to 640 t (An-225) and 45,000 built (Cessna 172).

fun facts

• 🎂First flew 103 years ago, in 1923.
• 🚗Wingspan of 18 m: about 4 cars parked nose to tail.

piston: A car-like piston engine turning a propeller: simple and cheap, the classic small plane.

spec sheet

first flight

1923

number built

11

role

reconnaissance floatplane

origin

Weimar Republic

makers

Heinkel, Caspar-Werke

engines

1× Maybach Mb IVa / Mb.IVa

length

12.7 m

wingspan

18 m

height

3.9 m

max take-off weight

2,320 kg

top speed

160 km/h

range

—

ceiling

4,000 m

Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.