Heinkel HE 4
Type
3-seat reconnaissance floatplane
Engine
1 Rolls-Royce Eagle IX
Dimensions
Length 12,5 m, height 3,85 m, span 18,0 m, wing area 52,5 m2
Weights
Empty 1750 kg, loaded 2500 kg
Performance
Max. speed at sea level 180 km/h, climb to 1000 m 4,5 min., service ceiling  3800 m
Armament
1 7,9 mm machine gun
Type
Werk.Nr
Registration
History
Hansa Type 47, S4
246
47, 247
Built in 1926. Delivered to the Swedish Navy in June 1926. In Febr. 1927 transferred to the Air Force (247). End
of service  October 1931 (Total flying time 910 h)
 
30
10
License-built by Svenska Aero AB Flown over from Sweden to Liepaja from Sept.30 - Oct.7, 1926. Destroyed in a
fatal crash on June 28, 1934.
 
31
11
License-built by Svenska Aero AB Flown over from Sweden to Liepaja from Sept.30 - Oct.7, 1926. September
28, 1932 - test flown by A.Zarins after a major rebuild and then returned to service. December 2, 1933 - a
commission is formed to determine the air-worthiness for continued service and, as a result, if was struck off.
 
40
16
License-built by Svenska Aero AB Flown over from Sweden to Liepaja in 1927. September 2, 1932 it was test
flown by A.Veldums after a major rebuild and returned to service. December 2, 1933 - a commission is formed to
determine the airworthiness for continued service and, as a result, if was struck off.
 
41
18
License-built by Svenska Aero AB Flown over from Sweden to Liepaja in 1927. Destroyed in a fatal crash on
November 6, 1931.
 
42
19
License-built by Svenska Aero AB Flown over from Sweden to Liepaja From November 16-26, 1927. Destroyed
in a fatal crash on November 6, 1931.
 
43
21
License-built by Svenska Aero AB Flown over from Sweden to Liepaja from November 16-26, 1927. November
22, 1932 - a commission is formed to determine the airworthiness for continued service, and it passed the test.
This, the longest-lived of the S.IIa models, survived past the restructuring of the naval aviation units in May, 1936,
continuing in service with the 8th naval reconaissance unit, renumbered as 97. On October 25, 1939, the naval
units are forced to abandon Liepaja to the Soviets and 97 is rebased to Kisezers, Riga. June, 1940 - this aircraft,
along with a handful of other naval aviation surviving machines, is surrendered to the Soviets.
The prototype just before transfer to Sweden