DFW C.V

The DFW C.IV, DFW C.V, DFW C.VI, and DFW F37 were a family of German reconnaissance aircraft first used in 1916 in World War I. They were conventionally configured biplanes with unequal-span unstaggered wings and seating for the pilot and observer in tandem, open cockpits. Like the DFW C.II before them, these aircraft seated the gunner to the rear and armed him with a machine gun on a ring mount. Compared to preceding B- and C-class designs by DFW, however, the aerodynamics of the fuselage were more refined, and when coupled with more powerful engines, resulted in a machine with excellent performance.

Design and development

The C.IV had a single-bay wing cellule and was powered by a 112 kW (150.19 hp) Benz Bz.III. It was soon replaced in production by the definitive C.V with a two-bay wing cellule and either a 185 hp (137.95 kW) C.III N.A.G. or 149 kW (199.81 hp) Benz Bz.IV. Predictably, the more powerful Benz engine gave significantly better performance.

The C.V's main designer was Heinrich Oelerich, and it was produced in larger numbers than any other German aircraft during World War I. About 2000 were manufactured by DFW and about 1,250 licence manufactured by Aviatik (as the DFW C.V(Av) or Aviatik C.VI), Halberstadt, LVG, and Schütte-Lanz.

C6

C6, C06, C VI or C-6 may refer to :

Vehicles

AEG C.VI, a German World War I reconnaissance aircraft

Bavarian C VI, an 1899 German steam locomotive model

Chevrolet Corvette C6, a 2005 sports car

Cierva C.6, a 1924 Spanish autogyro

Citroën C6, a 1928 luxury car

Citroën C6, a 2005 executive car

DFW C.VI, a 1916 German reconnaissance aircraft

HMS C6, a British Royal Navy submarine

LVG C.VI, a 1917 German twin-seat reconnaissance aircraft

Sauber SHS C6, a 1982 Group C prototype racing car

USS Olympia (C-6), a United States Navy protected cruiser

C-6 Ute, a military version of the Beechcraft King Air airplane

C-6, United States Army designation of the Sikorsky S-38 amphibious flying boat

Anatomy and medicine

Complement component 6 (C6 protein) in the complement cascade system of immune proteins (native immunity)

Cervical vertebra 6, one of the cervical vertebrae of the vertebral column

Cervical spinal nerve 6

C06, Malignant neoplasm of other and unspecified parts of mouth ICD-10 code

Other

Carbon, Chemical Element

Great Comet of 1577

The Great Comet of 1577 (official designation: C/1577 V1) was a comet that passed close to Earth during the year 1577 AD. It was viewed by people all over Europe, including the famous Danish astronomer Tycho Brahe and Turkish astronomer Taqi ad-Din. From his observations of the comet, Brahe was able to discover that comets and similar objects travel above the Earth's atmosphere. The best fit using JPL Horizons suggests that the comet is currently about 320 AU from the Sun (based on 24 of Brahe's observations spanning 74 days from 13 November 1577 to 26 January 1578).

Observations by Brahe and others

Tycho Brahe, who is said to have first viewed the comet slightly before sunset on November 13 after having returned from a day of fishing, was the most distinguished observer and documenter of the comet's passing.

Sketches found in one of Brahe's notebooks seem to indicate that the comet may have travelled close to Venus. These sketches depict the Earth at the centre of the Solar System, with the Sun and moon in orbit and the other planets revolving around the Sun, a model that has since been displaced by heliocentricity. Despite these misconceptions on Brahe's part, Brahe left behind thousands of very precise measurements he made of the comet's path, and these findings contributed to Johannes Kepler's theorising of the laws of planetary motion and realisation that the planets moved in elliptical orbits. Kepler, who was Brahe's assistant during his time in Prague, believed that the comet's behavior and existence was proof enough to displace the theory of celestial spheres, although this view turned out to be overly optimistic about the pace of change.