LFG V 60
| LFG V 60 | |
|---|---|
|
|
| Type: | School - Seaplane |
| Design country: | |
| Manufacturer: | |
| First flight: |
1926 |
| Commissioning: |
- |
| Number of pieces: |
5 |
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The LFG V 60 was a floatplane that was developed in the 1920s by the Luftfahrzeug-Gesellschaft in Stralsund and produced in small numbers.
development
The V 60 was designed after a tender by the German Aviation Association in February 1926 for the German Sea Flight Competition (DSW), which was to take place the following July. Officially, this event was declared to be the choice of a mail plane , unofficially the Reichswehr, operating in the background, was looking for a powerful military maritime scout . The work began in the same year and was carried out by Karl Theiss, who had switched from Caspar-Werke to LFG the year before . A total of five copies were made, which were registered as D – 846 , D – 850 , D – 923 , D – 924 and D – 1040 .
In addition to two V 59s, the aircraft company initially registered a V 60 equipped with a Jupiter engine of 294 kW (400 hp) for participation in the DSW, which was to be flown by Reppert's pilot. These details were later changed, the two V 59s were withdrawn and the D-924, apparently equipped with a BMW IV engine, was designated for participation, where it was to be flown by the pilot Haase and his observer Kolbe. Instead, the parallel design V 61, which was also registered, took over from Reppert . The competition began on July 12, 1926 with the technical tests and various measurement flights. On July 24th, the V 60 took off together with nine of the 17 aircraft originally registered for the first of four cross-country flights, which led in stages from Warnemünde to Norderney and back over almost 1000 km. The V 60 took 6th place on this flight. On the next flight on July 26 from Warnemünde to Pillau the V 60 had partially up on the way back in windy weather wind force 6 due to engine trouble in rough water ditch . A subsequent surge tore off the tail, which caused the aircraft to tip forward. The crew, thrown into the water, clung to the swimmers , but before they could be found and rescued the following day, the pilot Haase lost his strength and he drowned; his observer Kolbe survived. The V 61 also crashed in a low flight in the Baltic Sea and sank, whereby the occupants could be saved this time. The unsuccessful participation of their two models in the sea flight competition had far-reaching financial consequences for the LFG, as a result of which it was forced to cede its Stralsund shipyard to Rohrbach Metallflugzeugbau GmbH .
The remaining four V 60s were given to the German Aviation School , which they used for training at their branch in Warnemünde. There they enjoyed great popularity thanks to their good-natured flight and landing characteristics. Three were broken during school flights, the D – 1040 as the last V 60 was still flown for some time and was used more often for the sea exams for aspiring naval pilots.
construction
The V 60 is a zweistieliger, strained biplane in wood construction . The fuselage consists of a wooden structure with a rectangular cross-section that tapers towards the rear with longitudinal ash beams and plywood cladding . The engine mount made of welded steel tubing is planked with sheet metal. Behind it is the oil tank on the firewall behind it .
The structure includes the slightly staggered upper and lower wings of different spans. These are designed in two parts and consist of a wooden frame with fabric covering made up of two box spars and plywood ribs. The upper and lower wings are connected to each other with double I-stems and bracing that is crossed out on two levels. Both are equipped with unbalanced ailerons, which in turn are connected by bumpers. The fuel tanks are located in the upper wing, the middle section of which is connected to the fuselage by a tombstone.
The tail unit consists of the free-standing vertical fin and the horizontal fin supported by I-stems on the fuselage. These are aerodynamically balanced.
The V 60 is equipped with two parallel, single-stage wooden floats, the floors of which are flat at the front and keeled at the rear. They are connected to the fuselage and the lower wing by struts.
Technical specifications
| Parameter | Data |
|---|---|
| crew | 2 |
| span | 15 m |
| length | 10.6 m |
| height | 4.14 m |
| Wing area | 52 m² |
| Preparation mass | 1350 kg |
| payload | 320 kg |
| Takeoff mass | 2050 kg |
| drive | a water-cooled six - cylinder four-stroke in - line engine |
| Type | BMW IVa with two-bladed wooden propeller |
| Starting power nominal power continuous power |
320 PS (235 kW) 300 PS (221 kW) on the ground 240 PS (177 kW) at an altitude of 4000 m |
| Top speed | 152 km / h near the ground 144 km / h at 2000 m altitude |
| Landing speed | 70 km / h |
| Rise time | 8 min at 1000 m altitude |
| Range | k. A. |
| Service ceiling | 4000 m |
literature
- Hans-Jürgen Becker: Seaplanes - flying boats, amphibians, float planes . In: German aviation . tape 21 . Bernard & Graefe, Bonn 1994, ISBN 3-7637-6106-3 .
- Helmut Stützer: The German military aircraft 1919–1934 . E. S. Mittler & Sohn, Herford 1984, ISBN 3-8132-0184-8 .
Web link
Individual evidence
- ^ Civil Aircraft Register - Germany. Retrieved August 5, 2018 .
- ↑ Volker Koos: Aviation between the Baltic Sea and Breitling . Transpress, Berlin 1990, ISBN 3-344-00480-8 , pp. 67 ff .