SIG LUFTWAFFE HOMEPAGE

(special interest group Luftwaffe in Norway)
HEINKEL HE 115 IN NORWAY


Development*Weserübung*Operational career* Production


By Kjetil Korsnes


Luftwaffe-SIG Norway

Introduction

The Heinkel He 115 was one of the rarest floatplanes in service with the Luftwaffe during W.W.II, and was widely used on the "Eismeer" front (Norway and Finland). Although production of this Heinkel ceased as early as 1940, the plane remained in service up until the end of hostilities in May 1945.
This paper reviews some of the literature available on the He 115, with a special emphasis on its operational career in Norway.

Development

When the Luftwaffe was formed in March 1936, the urgent need for a modern seaplane to replace the ageing He 59 become evident. In order to meet this demand, the Reichluftfahrt-ministerium (RLM) issued a development-contract for the designing and building of a new seaplane to both Heinkel and Hamburger Flugzeugbau. The RLM specifications called for a multipurpose seaplane, capable of long range reconnaissance with capacity for carrying torpedoes as well as bombs. In addition, the specifications demanded its use in the role of mine- and smoke dispatcher. The two prototypes were completed in late 1937, and the new Heinkel design had her maiden flight in August. By now Heinkel had designated his project as the He 115. The following month the competing design, known as the Ha 140, flew for the first time. During trials in Travemünde, both the Heinkel 115 and Ha 140 prototypes were test flown, the Hamburger plane being severely damaged in a landing accident. By examination of the various characteristics of the two designs, it was decided that they were roughly on a par with each other. Nevertheless, RLM eventually decided to go for the Heinkel, and on March 20th 1938, the Heinkel 115V1 showed her true potential when she broke no less than 8 speed records. But these records were to be rather short lived as an Italian CANT Z 509 broke them just 11 days later. However, the Italian aircraft was powered by no fewer than three engines. The following year, Heinkel attempted to set a new record with his plane, this time to hop across the Atlantic to South America. Unfortunately, Heinkel failed in his attempt and
the He 115V1 was lost en route (Dabrowski, 1994).
A preproduction series entered production with the V4 prototype but only a few such aircraft were manufactured. The initial series model (A-1) entered production in January 1939 (Green, 1970; AirInt, 1987a; Dabrowski, 1994).
Kössler and Marshall (1996) have identified the following He 115s tested at Erprobungstelle Travemünde and Tarnewitz:


E-stelle Travemünde:

Code Aircraft Wr.nr.

VF+UY He 115
He 115 1873

E-stelle Tarnewitz:

Code Aircraft Wr.nr.

TI+HA He 115V2 1554
TI+HB He 115V3 1555
TI+HC He 115V4 1977
TI+HD He 115A/V5 1862
TI+HF He 115A-06 1856
TI+HG He 115A-0 1855
TI+HH He 115B 1873
VF+UR He 115
D-ABBI He 115A/V5 1862 later TI+HD
D-ABZV He 115V3 1555 later TI+HB
D-ADJL He 115A-0 1855 later TI+HG
D-AEHF He 115V1
D-AKPS He 115A-06 1856 later TI+HF
D-APDS He 115V2 1554 later TI+HA
D-ASLD He 115A-02 1852

Production

Germany's shortage of foreign currency led to the production of an export model of the Heinkel He 115, primarily for delivery to Denmark and Sweden. This model was designated the He 115A-2, and was identical to the He 115A-1 apart from some of the equipment, such as radio, bombsight and armament (Green, 1970; AirInt, 1987a; Arheim, 1976, Mortimer, 1991; Dabrowski, 1994). Thus, there is disagreement as to whether the A-2 designation existed or not, and according to Hafsten (pers.com., 1996) the export models were designated He 115S for those delivered to Sweden, and He 115N for those delivered to Norway.
In late 1939 Heinkel phased out the production of his floatplane, and the entire production was moved from Heinkel Rostock to the "Weser" plant in Einswarden. This factory continued to build the plane until mid summer 1940, when manufacturing was terminated. A total number of 138 planes had then been produced (Green, 1970; AirInt, 1987a).
Hafsten (pers.com., 1996) disagrees when it comes to production and the total number manufactured. He makes these comments concerning the above mentioned statements: During recent years much contradictory and even incorrect information has been put forward regarding this particular aircraft. The total number manufactured, including prototypes, reached approximately 220-230 planes. The first batch of 7 He 115A-0 was delivered in January 1939, and the two last Heinkels (C versions) left the production plant in Rostock in June 1940. Documents at Bundes-archive/Militärarchive in Freiburg confirm all deliveries of the RLM contract. The entire production of the He 115 took place at Heinkel Flugzeugwerke in Rostock/ Warnemünde, thus modifications and repairs were carried out by Walter Bachmann Flugzeugbau in Reibnitz, in Horten (Norway) or simply within the units themselves.

He 115 in Norwegian service

In the beginning of June 1939, Heinkel's managing director von Treschow visited the Norwegian Department of Defence in order to negotiate for delivery of the He 115 to the Norwegian Air Force. Due to the tense political situation in Europe, the Norwegians planned to purchase a new floatplane to fulfil the requirements of its Marinens Flyvevåben. Treschow invited representatives to the Heinkel factory in Rostock to test his plane and on August 28th a contract for delivery of six He 115N was eventually signed (Green, 1970; Arheim, 1976; AirInt, 1987a).
All six Heinkels were delivered to the Norwegians in Rostock during the 14.07.39 - 13.11.39 period (Hafsten, pers.com., 1996):


Date Wr.nr. Code
14.07.39 3038 F.50
01.08.39 3039 F.52
26.08.39 3040 F.54
06.09.39. 3041 F.56
13.10.39 3042 F.58
13.11.39 3043 F.60

In December 1939, a new batch of six He 115s were ordered by the Norwegians, scheduled for delivery in March/April 1940. Since the German campaign was launched against Norway on the 9th of April 1940, these aircraft never reached their destination, Marinens Flyvevåben, but were transferred to the Luftwaffe in late summer 1940. Designated as the He 115B/N, these planes never saw operational action with the Luftwaffe (Hafsten, pers.com., 1996).

"Weserübung"

The Luftwaffe received its first He 115A-0 for evaluation in late summer 1938, and the first Küstenfliegerstaffel to convert to this aircraft was 1./Kü.Fl.Gr. 106 in September 1939 (Green, 1970; AirInt, 1987a). During this period, Heinkel introduced the B model, where endurance, loading capacity and range were improved, and the B-1 model entered production in September 1939 (Green, 1970; AirInt, 1987a).
By the time Germany attacked Norway on April 9th 1940, further Küstenfligerstaffeln had been equipped with He 115, and the units participating in the Norwegian campaign were as follows:

1./Kü.Fl.Gr. 106
1./Kü.Fl.Gr. 506
2./Kü.Fl.Gr. 506

These units performed long range reconnaissance in the northern part of the North Sea. Final destination for 1./506 and 2./506 was Trondheim, and 1./106 was scheduled for landing at Sola Stavanger (Hafsten et. al., 1991). Prior to the attack, the original Do 18-equipped 2./506 was redesignated 1./406, and the new 2./506 was equipped with the He 115. Weserübung called for Stab and both staffeln of 506 to occupy Trondheim-Jonsvatnet on the first day of the Norwegian invasion, and the subordinated 1./106 to fly to Bergen (Green, 1970). As we can see, the literature once again proves contradictory, this time in relation to the destination of 1./106.
Since both the Norwegian Marinens Flyvevåben and the Luftwaffe flew the He 115, this caused considerable confusion among the German and Norwegian troops. At the time of the invasion, the Norwegian He 115s were scattered around at different locations, the 2. Flyavdeling operating one such aircraft at Sola-Stavanger and two at Flatoy (Bergen). In northern Norway, the 3. Flyavdeling was equipped with three He 115s at Skattora (Arnesen, 1962; Arheim, 1976).
On April 10th, 1./106 was ordered to fly its He 115B-1 from Sola-See up north to Narvik in order to support the troops of General Dietl. Due to an extensive battle between allied sea power and German invasion troops in the harbour area, it became impossible for the unit to perform its task and subsequently, all planes were forced to return. On the way back to Trondheim, two aircraft had to make an emergency landing at Ornes and Bronnoysund due to a shortage of fuel. These two planes were captured by Norwegian forces and added to the strength of 3. Flyavdeling. The two He 115s received the Norwegian codes 62, (former M2+EH) and 64 applied to the fuselage sides (Arheim, 1976: Hafsten et al., 1991).
The literature is confusing regarding details on this incident, and according to Mæsel (1990), just four He 115s of 1./106 headed for Narvik. These planes landed as scheduled in Narvik harbour on April 13th, and subsequently it was two of these planes which were captured by the Norwegians. Green (1970) and AirInt (1987b) add to the confusion when they claim the captured He 115s to be attached to 1./506.
Mæsel (1990) has summarised the German losses of He 115s in the initial stage of the campaign:

Date Qty. location unit

12.04 1 West coast 2./506
13.04 2 Helgeland 1./106
17.04 4 Sola 1./106

The destiny of Norway's Heinkels

Shortly before the cease-fire on June 7th 1940, the Norwegian He 115s in airworthy condition escaped the country, four being flown to England and one to Finland (Arheim, 1976; Mortimer, 1991):

F.50 Flown by Norwegian crew to Finland, and
entered service with the
Finnish Air Force.

F.52 Flown to England and
received new serial number: BV186.

F.54 Lost during flight to England.

F.56 Flown to England and
received new serial
number: BV184.

F.58 Flown to England and
received new serial
number: BV185.

F.60 Captured by German forces at Sola.

F.62 Abandoned at Skattora.

F.64 Flown to England and
received new serial
number: BV187.

F.50 flew in Finnish colours until July 4th 1943, when it crashed behind Russian lines in the eastern Karelen area (Hafsten, pers.com., 1996).
In England, the former Norwegian He 115s reformed under Cdr. Bugge as"the Helensburgh Group". These aircraft were detailed for leaflet dropping missions over Norwegian cities in early July 1940, but due to trigger happy British naval gunners such missions were cancelled and all four aircraft were taken on RAF charge. In late 1940 evidence suggests that the four aircraft became the "property" of Air Ministry Intelligence and several modifications were carried out to at least three and possibly all four He 115s. Reports indicate that modification work was only possible on one aircraft at a time and was in progress between May 1941 and July 1942 (Mortimer, 1991).
BV184 (ex-F.56) was originally intended for use in clandestine operations on the Norwegian cost, but such a task became difficult because of the need for utmost secrecy and the risk of attack by British aircraft. On one occasion, a Heinkel was attacked by two Spitfires when returning from a mission. The starboard propeller was shot of and starboard wing burst into flames. However, the crew managed to make a safe emergency landing at sea, but this aircraft was later lost in a refuelling fire and subsequently reduced to spares by BOAC in July 1942. BV185 (ex-F.58) was transferred to the Mediterranean theatre and flew just one clandestine operation to North Africa before it was destroyed in its hangar during a raid by Italian aircraft on Kalafrana. BV187 carried out several missions on the North African coast from its base in Malta and unconfirmed reports speak of a daring landing at the harbour of Tripoli in full daylight to pick up agents. In early 1942 the aircraft was the target of an attack by two Bf 109s and the plane was completely destroyed (Mortimer, 1991).
BV186 (ex-F.52) was scrapped at Woodhaven in December 1942, never having seen action. Several photos showing this aircraft being stripped and destroyed by British personnel exist (Mortimer, 1991; Dabrowski, 1994).
Once again the literature is contradictory. Green (1970) and AirInt (1987b) claim that just two He 115s were modified and carried out clandestine operations (BV185 and BV 187). Furthermore, BV185 was the aircraft which flew several missions on the North African coast, and made the daring landing at the harbour in Tripoli. BV187 flew corresponding missions on the Norwegian coast in German markings, but considering the hazardous risk of flying alien aircraft close to the British islands, these missions were eventually cancelled.
Hafsten (pers.com., 1996), on the other hand, makes the following comments regarding Britain's secret Heinkels: The former Norwegian He 115s were never intended to perform clandestine operations in Norway on SIS/SOE service. The aircraft were reserved for operations in the Mediterranean theatre but during the summer of 1942, the interest in these aircraft decreased dramatically and the two remaining aircraft were never to leave England. Compared to other aircraft available for SIS/SOE operations the aged He 115 was found inadequate. Furthermore, the daring landing in the harbour of Tripoli is, most likely, just another fictitious story of courage, since the British never risked men and equipment in such venturesome operations. Regarding BV187, this aircraft was never to perform any missions over nazi-occupied Norway. To those who are interested in further research on this subject, both Riksarkivet (Norway) and PRO in London have plenty of documents detailing the history of Britain's secret Heinkels.

Luftwaffe units in Norway

I August 1940, the following units in Luftflotte 5 were equipped with He 115s:

1./Kü.Fl.Gr. 506 Sola-See
2./Kü.Fl.Gr. 506 Sola-See
3./Kü.Fl.Gr. 506 Sola-See
1./Kü.Fl.Gr. 906 Aalborg

These units flew offensive sorties against maritime targets (Hafsten et al., 1991). In April 1940, 1./706 converted from the He 60s to He 115s, and was transferred to Ålborg in Denmark. This unit then performed several missions from Denmark and Norway, until its withdraw to Germany in August 1941 (Green, 1970). Hafsten et al. (1991) , on the other hand, claims that 1./706 in August 1940 was equipped with the obsolete He 59. Furthermore, Hafsten (pers.com., 1996) adds that this unit formed on He 59 from mid April 1940 in Kiel-Holtenau, and shortly afterwards was transferred to Copenhagen and then Aalborg-See. A few He 115s were assigned to the unit in late 1940 (approximately ´ staffel).
The entire Küstenfliegergruppe 506 but the 1. staffel was withdrawn to its homebase at the island Norderney in October 1940. The 1. staffel, which was left behind in Norway, flew several sorties on the cost of Scotland and England, primarly attacking convoy shipping. This staffel continued to performed such missons until it was withdrawn as well, on April 1th 1941 (Hafsten et al., 1991).
The lightly armed Heinkel 115 proved to be too slow and vunerable for succsessful operations in areas patrolled by RAF fighters and, as a consequence, its operations were to be confined largely to the Arctic. However, 1./906 performed reconnaissance sorties from Brest between June and December 1941, when it was finally transferred to Norway under Luftflottte 5 in early 1942 (Green, 1970; AirInt, 1987b). This year Luftwaffe reached its climax in terms of aerial attacks on the famous Murmansk-convoys (Haftsten et al., 1991).
In early 1942, the He 115 equipped units operating from Norway consisted of just three staffels; 1./906 (He 115C), 1./406 and 3./906. These units were completly or partly equipped with Heinkel floatplanes (Green, 1970; AirInt, 1987b). According to Hafsten et al. (1991), the units operating this aircraft in 1942 included:

1./Kü.Fl.Gr. 906 Sola-See
1./Kü.Fl.Gr. 406 Sorreisa/Kirkenes

During June and July, these two units participated in the attacks on the ill-fated convoy PQ 17. In addition, other maritime units like 2./406, 3./406, 3./906 and 1./125 were available for the reconnaissance role, but these were primarly equipped with Bv 138s.
In August 1942, 1./906 recieved its order to leave Norway, and was to reorganise and convert to the He 111 as part of 8./K.G. 26. By now, 1./406 was the single unit which still flew the He 115 (Green, 1970; AirInt, 1987).
According to official records regarding operational aircraft in service with Luftflotte 5 in November 1943, just one Küstenfliegerstaffel and one Seenotstaffel were still solely equipped with the He 115. These units consisted of 1./406 and Seenotstaffel 10. The last mentioned unit also operated the Do 24, in the sea-rescue role (Hafsten et al., 1991).
In late 1944, the He 115 disappear from Luftwaffe records regarding aircraft in service with Luftflotte 5, and the last unit exclusively formed with this aircraft (1./Kü.Fl.Gr. 406) was disbanded in October and its personnel transferred to other units (Hafsten et al., 1991). In the final months of the war, allied air superiority made it difficult to operate the aged He 115 in an efficient way and this aircraft was subsequently abandoned by the Luftwaffe.
When hostilities ended in 1945, no units were officially operating the He 115, but photographic evidence shows a few examples of the aircraft left behind at Skattora. However, all He 115s captured from the Germans were eventually destroyed by the Norwegians (probably with assistance of a disarmament group) shortly after the cease-fire in 1945.
Aeroplane Monthly (1987) published in the January issue an interesting photo of a He 115 belonging to K.G. 200, Luftwaffe's famous special operations unit. The picture shows a modified He 115 with the code A3+DE, and according to this magazine, K.G. 200 had three such aircraft on strength as late as January 1945! This particular aircraft has the blanked-off centre section in the canopy and a non-standard hole in the belly. Since K.G. 200 also operated from bases in Norway (Hafsten et al., 1991), speculation as to whether or not this particular unit performed agent dropping missions from Norway has emerged. According to Hafsten (pers.com., 1996), K.G. 200 had two or three such aircraft on strength on a detachment in Finland from 1943 but, when the German-Finnish alliance broke down in 1944, all He 115s were captured by the Finnish airforce. No evidence suggesting that these particular aircrafts were operated by K.G. 200 in Norway exists.


He 115 bases in Norway

The He 115s were operated from the following locations (Green, 1970; AirInt, 1987a; AirInt, 1987b; Hafsten et al., 1991):

Sola-See 106,506, 906
Ilsvikora (Tr.heim) 506, 106
Hommelvik 506, 406
Sorreisa 406
Skattora (Tromso) 406, 506, 906
Kirkenes 406, 906

In additon, some He 115s were detached to other locations for a shorter or longer periods.

Camouflage and markings

Units of the Küstenfliegergruppen which saw service at the Eismeer front, and their codes:

1./Kü.Fl.Gr.106 M2+?H
1./Kü.Fl.Gr.406 K6+?H
1./Kü.Fl.Gr.506 S4+?H
2./Kü.Fl.Gr.506 S4+?K
3./Kü.Fl.Gr.506 S4+?L
1./Kü.Fl.Gr.906 8L+?H

To identify the different staffeln, Luftwaffe established a colouring system where 1. staffel wore a white individual letter (indicated as "?"), 2. staffel a black letter and 3. staffel a yellow letter. The code identifying the unit and the staffel-letter were always in black (but some departures from these rules exist). The majority of maritime aircraft wore the standard splinter scheme of greens 72/73 with blue 65 undersides. Markings followed the patterns established for other aircraft (Parry & Marshall, 1987). Nevertheless, some pictures show He 115s in northern Norway wearing a non-standard winter scheme, with large white patches over the standard splinter, this being only on the fuselages (Philpott, 1981).
Other pictures show aircraft from different staffeln not following these rules of thumb, for example 1. staffel having the entire code in black.
From studying various references, it is possible to identify the following aircraft from Norway:

1./106
M2+AH (Mæsel,1990).
M2+EH C (Hafsten, 1991)1.

1./406
K6+AH (Feist & Dario,19??)
K6+EH C (Bundesarkiv).
K6+DH (Feist & Dario,19??)
K6+GH B (Philpott,1981).
K6+LH B (Feist & Dario,19??)
K6+NH (Feist & Dario,19??)
K6+RH (Philpott,1981).
K6+TH (Feist & Dario,19??)

1./506
S4+BH (BAHS)2.
S4+CH B (BAHS).
S4+DH (BAHS).
S4+EH (Sperbund,1987).
S4+FH (Fotoarchiv).
S4+GH B (Feist & Dario,19??)
S4+KH (Fotoarchiv).

3./506
S4+ML (Jet & Prop).

2./506
S4+BK (BAHS).

1./906
8L+AH C (Mæsel,1990).
8L+IH (Green,1970).



The production series

Green (1970) and AirInt (1987a) recognize following production series:

V1 First prototype.
V2
V3
V4 From which the A-0
series originated.
A-1 Torpedobomber, bomber.
A-2 Export version, identical to the He 115A-1.
A-3 Essential an A-1 with up- dated radio equipment and improved weapons release system.
V5 Modified A-0, which became the prototype for the B-series (designated B-0).
B-1 Equipped with different Rüstsätze:
B-1/R-1 with two Rb reconnaissance cameras.
B-1/R-2 racks for bombs.
B-1/R-3 racks for aerial mines.
B-2 Fitted with steel skids on floats. Rüstsätze as the
B-1 series.
C-1 MG-151 under nose section, and two rear firing MG 17 in the tail of each engine nacelle.
C-2 Identical reinforce- ments (floats) and Rüstsätze as the B-2.
C-3 Equipped for the mine- laying role.
C-4 Equipped for use in the
Arctic in torpedo- dropping role.

In addition, Green (1970) claims the existence of a D-series, of which only one aircraft was completed.
Dabrowski (1994) also recognises the existence of an E-series, which was in production as late as 1944 when the production was finally brought to a halt! According to Dabrowski, the Dora version was a modified C-4 with new engines.
Hafsten (pers.com., 1996) disagrees with this classification and points out that in the period between January-November 1944, not a single He 115 appears in the official records regarding German aircraft production. It was a clear policy of the Luftwaffe as well as the Kriegsmarine (as early as 1940) to convert units equipped with maritime planes to aircraft like the Ju 88 and He 111. In late summer 1940, only maritime aircraft in the reconnaissance role were maintained in production (Ar 196 and Bv 138). However, due to a shortage of Ju 88s and He 111s, it took a long time to complete the conversion of the maritime units. Regarding the He 59, this aircraft was solely in service with the Seenotdienst in late 1940, and was finally replaced by the Do 24 in the sea-rescue role.
Hafsten (pers.com.,1996) recognises the following production series:

He 115V1 Prototype
V2
V3
V4
He 115A-0
He 115A
He 115B-1
He 115B-2
He 115C
He 115N (export version)
He 115S (export version)

In additon, quite a few B-versions were converted with a canon in the nose section, and received the designation He 115B/C. This classification is supported by documents from both RLM, Luftwaffe and Heinkel. Whether the Dora series entered production or not is still doubtful, but a version with an increased range was on the drawing board. This version was, however, cancelled by the Kriegsmarine in February 1940. To improve the He 115s range, a number of He 115B were modified to house a lager amount of fuel and in the spring of 1940 Weser started the modification of somewhere between 65-70 planes (Hafsten, pers.com.,1996).


Fleugzeug-Handbuch He 115A,B,C

The reference books from Heinkel (Heinkel, 1940) make the classification in the literature look somewhat stange. Most interestingly, these handbooks wich deals with the technical aspects of the He 115 support the view of Hafsten. For those interested, these books are available (as microfilm) at both Bundesarchiv Freiburg and Imperial War Museum in London.
The handbooks have documented the following series: He 115A, He 115B-1, He 115B-2 and He 115C. Above all, if you compare the various versions, it is the armament which differentiate the various series from each other. The Anton version had just a single MG 15 in the nose section, and one rear firing MG 15 in the cockpit. Later, Heinkel introduced armourplating behind both pilot and gunner (B-series) and with the C-series the armament was further improved, adding an MG 151 in the nose section and a rear firing MG 17 in each engine nacelle.
Furthermore, it is interesting to note the two roles the aircraft was primarily intended to fulfil, as recognised by the datasheets (Datablatten): as Aüfklarer (reconnaissance role) and Bomber. If you look at the Ergänzungsblatt zu Datablatt (A,B and C-series), several different types of equipment are carried to fulfil various tasks such as: Aufklärer, Torpedoträger, Bomber, LM-Träger or Vernebler (smoke dispatcher). These are not, as some references claim, sub-versions of the aircraft, the Rüstsätze mentioned by Dabrowski and Green presumably refer to the various Ladepläne. Without going into detail, the basic structure of the aircraft never changed during its evolution, and the general changes can be summarised as follows: The B-1 version had a greater fuel capacity (increased range) and the floats were reinforced. With the B-2 version, steel skids were introduced for operation from ice and snow. The C-version was identical to the B-1 apart from the armament, which was improved.

Acknowledgment

The author wishes to thank the following individuals for providing information or in other ways helping writing this review: Guy Baillie, Bodo Aviation Historical Society and Åge Stenersen, Olve Dybvig, Bjorn Hafsten, Knut Erik Hagen, Ole B. Sælensminde and Kjetil Åkra. In particular the correspondence with Bjorn Haftsten was most useful.
Comments or questions regarding this review are welcome. Mailing address: Klaus Hanssensvei 18C, N-5037 Solheimsviken, Norway, or by E-mail: Kjetil.Korsnes@im.uib.no
Phone: int + 55 29 66 48.


Abbreviations

Some abbreviations used in this review:

Pers.com: Personal communication.
et al. : And authors.
SIG : Special Interest Group.
PRO : Public Record Office.

Literature cited

AirInt (Air International), Feb. 1987a. Last of a Genus...The Heinkel 115. Air International, 96-101.

AirInt (Air International), March 1987b. Last of a Genus...The Heinkel 115. Air International, 154-156.

Arheim, T., 1976. Heinkel He 115 i Norge. Limtuben, 14-19. IPMS magazine Norway.

Arnesen, F., 1962. Våre flygere i kamp, Luftkrigen i Norge 1940. C. Huitfeldt Bladkompaniet, Norway.

Dabrowski, H.P., 1994. Heinkel He 115. Shiffer Publishing Ltd, USA.

Feist, U., and Dario, M. 19??. Luftwaffe III. Squadron/Signal Publications. Germany.

Foto-Archiv Band 1, 1988. Flugzeug Publikations GmbH, Germany.

Fredin, L., winter 1977. He 115. Scala IPMS-Sverige. Sweden.

Green, W., 1970. Warplanes of the Third Reich. Published 1990 by Galahad Books, USA.

Hafsten, B., Larsstuvold, U., Olsen, B. and Stenersen, S., 1991. Flyalarm -Luftkrigen over Norge 1939-1945. Sem & Stenersen A/S, Norway.

Heinkel, 1940. He 115 A, B, und C. Flugzeug-Handbuch. Reprint of the handbooks, Luftfahrt-Archiv Hafner, Germany.

Jet & Prop Foto-Archiv Band 1, 1992. Unveröffentlichte Flugzeug-Fotos aus privaten Sammlungen. Verlag Heinz Nickel, Zweibrücken, Germany.

Kössler, K. and Marshall, F., July 1996. E-stelle Rechlin & Travemünde. Luftwaffe Verband Journal, 14-20.

Mortimer, B., Sept. 1991. Britain's secret Heinkels. Wingspan, 21-24.

Mæsel, K., 1990. Ni dager i apil, luftkampene over Norge 1940. Ex Libris Forlag A/S, Norway.

Parry, S.W and Marshall, F.L., 1987. Colours of the Luftwaffe. Clifford Frost Ltd, England.

Phillpot, B., 1981. German maritime aircraft. World War 2 photo album no. 18, Patrick Stephens Ltd, England.

Sperbund, H., June 1987. Es geschah vor Haltenbanken... Das Rätsel um das Wrack der He 115 S4+EH ist gelöst. Flugzeug Magasin, 50-53.







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