Engineering:Heinkel HD 19
| HD 19 | |
|---|---|
| Role | Seaplane fighter |
| National origin | German-Swedish |
| Manufacturer | Svenska Aero AB |
| Designer | Ernst Heinkel |
| First flight | July 1928 |
| Introduction | 1928 |
| Retired | 1937 |
| Primary user | Svenska Flygvapnet |
| Number built | 6 |
The Heinkel HD 19 W (or Svenska Aero J 4) was a biplane seaplane fighter developed by Ernst Heinkel Flugzeugwerke .
Development
The Heinkel HD 19 W was the only naval fighter to be delivered to the Svenska Flygvapnet. Formed in 1926, the Svenska Flygvapnet issued a requirement in 1927 for an aircraft to be used for the defense of coastal fortifications and ships of the Navy. The specification determined the engine (the Bristol Jupiter VI) and the configuration of the aircraft, which should have been a seaplane with boots. The aircraft was designated J 4 (the acronym J stands for the Swedish word "Jakt", fighter) and two aircraft were ordered by Heinkel in September 1927.
Meanwhile, the Swedish branch of Heinkel, the Svenska Aero AB based in Lidingö (an island in the Stockholm archipelago), made an offer for the Swedish air force and in October 1928 an order was made for four additional aircraft (serial numbers 282-285). The first delivery took place in May 1929, the last one in the following September.
The aircraft housed 2 people and was armed with two KSP M / 22 caliber 8 mm front fixed machine guns and another 8 mm KSP M / 22 caliber that can be tilted by the rear seat passenger. The first HD 19 carried out the tests at Warnemünde in July 1928 and entered service at Wing F 2 in Hagernäs a few months later. Given the limited performance the days for seaplanes were set, so the planes were actually used for the reconnaissance and fire management. In particular, the floats limited a lot of operation and performance even if the HD 19 was initially designed with an alternative landing gear that could mount wheels or skis depending on the case. In 1934 the three surviving J4s were transferred to Wing F 1 in Västerås and placed in reserve. The last J 4 (number 281) was withdrawn on August 31, 1937 after an operating life of 812 flight hours.
Specifications
Data from [1]
General characteristics
- Crew: Two
- Length: 9.26 m (30 ft 5 in)
- Wingspan: 11 m (36 ft 1 in)
- Height: 3.91 m (12 ft 10 in)
- Wing area: 31.60 m2 (340.1 sq ft)
- Empty weight: 1,175 kg (2,590 lb)
- Powerplant: 1 × Bristol Jupiter VI , 310 kW (420 hp)
- Propellers: 2-bladed
Performance
- Maximum speed: 215 km/h (134 mph, 116 kn)
- Cruise speed: 182 km/h (113 mph, 98 kn)
- Service ceiling: 6,400 m (21,000 ft)
- Wing loading: 47 kg/m2 (9.6 lb/sq ft)
References
Swedish military aircraft designations 1926–current | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Post–1940 unified sequence | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Italics Pre-unification designations
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! rowspan="3" colspan="2" width="14%" style="border-bottom:2px solid grey;" | Date/Time (UTC) ! Configuration ! Serial number ! Launch site ! Outcome |- |style="text-align:center;background-color:#e3e9e9;" | Payload |style="text-align:center;background-color:#e3e9e9;" | Separation orbit |style="text-align:center;background-color:#e3e9e9;" | Operator |style="text-align:center;background-color:#e3e9e9;" | Function |- | colspan="4" style="text-align:center;background-color:#e4dfdf;border-bottom:2px solid grey;" | Remarks |- Parameter 1=time required!
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| rowspan="1" colspan="2" style="border-top:2px solid #aabbcc;" | | style="border-top:2px solid #aabbcc;" | | style="border-top:2px solid #aabbcc;" | | style="border-top:2px solid #aabbcc;" | | style="border-top:2px solid #aabbcc;" | |- |- Vietnamese pronunciation: [{{{1}}}]-4500 — – -4000 — – -3500 — – -3000 — – -2500 — – -2000 — – -1500 — – -1000 — – -500 — – 0 — Done To doRussian pronunciation: [{{{1}}}]Greek pronunciation: [{{{1}}}]Danish pronunciation: [{{{1}}}]Northern Sami pronunciation: [{{{1}}}]Mandarin pronunciation: [{{{ipa}}}]Cantonese pronunciation: [{{{1}}}]Entry from Heinkel HD 19 from TCI Europe, retrieved on {{{Date}}}
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|- | ... | — | — | — | — | — | — |-Old Norse pronunciation: [{{{1}}}]Salish pronunciation: [{{{1}}}]Basque pronunciation: [{{{1}}}]{{{1}}}data-sort-value="" style="background: #ececec; color: #2C2C2C; vertical-align: middle; font-size: smaller; text-align: center; " class="table-na" | UnreleasedNorwegian pronunciation: [{{{1}}}] (aged {{{4}}})Hungarian pronunciation: [{{{1}}}]Quechua pronunciation: [{{{1}}}]Arabic pronunciation: [{{{1}}}]Punjabi pronunciation: [{{{1}}}]Afrikaans pronunciation: [{{{1}}}]Romanian pronunciation: [{{{1}}}]Hebrew pronunciation: [{{{1}}}][INVALID OR MISSING PARAMETER IN TEMPLATE Heinkel HD 19]Uto-Aztecan pronunciation: [{{{1}}}]Tamil pronunciation: [{{{1}}}]Hindustani pronunciation: [{{{1}}}]Swedish pronunciation: [{{{1}}}]Kazakh pronunciation: [{{{1}}}]Lao pronunciation: [{{{1}}}]Tibetan pronunciation: [{{{1}}}]Khmer pronunciation: [{{{1}}}]data-sort-value="" style="vertical-align:middle; text-align:center" class="table-na" | —{{{1}}}Welsh pronunciation: [{{{1}}}] Partially doneAthabaskan pronunciation: [{{{1}}}]Māori pronunciation: [{{{1}}}]IPA: [{{{1}}}]Bulgarian pronunciation: [{{{1}}}]Korean pronunciation: [{{{1}}}]Icelandic pronunciation: [{{{1}}}]Sanskrit pronunciation: [{{{1}}}]Bengali pronunciation: [{{{1}}}]Indonesian pronunciation: [{{{1}}}]Serbo-Croatian pronunciation: [{{{1}}}]CROSBI {{{1}}} 2 Not unified with main sequence | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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