MANUFACTURER(S): Automobil und Aviatik AG (Aviatik) - German Empire
OPERATORS: Imperial Germany (cancelled)
LENGTH: 20.01 feet (6.1 meters)
WIDTH: 31.66 feet (9.65 meters)
HEIGHT: 8.20 feet (2.5 meters)
WEIGHT (EMPTY): 1,642 pounds (745 kilograms)
WEIGHT (MTOW): 2,083 pounds (945 kilograms)
ENGINE: 1 x Benz Bz.IIIbm geared engine developing 195 horsepower and driving a two-bladed propeller unit at the nose.
SPEED (MAX): 119 miles-per-hour (192 kilometers-per-hour; 104 knots)
RANGE: 447 miles (720 kilometers; 389 nautical miles)
CEILING: 20,177 feet (6,150 meters; 3.82 miles)
RATE-OF-CLIMB: 800 feet-per-minute (244 meters-per-minute)
Detailing the development and operational history of the Aviatik D.VII Single-Seat Biplane Fighter Prototype.
Entry last updated on 4/23/2017.
Authored by Staff Writer. Content ©www.MilitaryFactory.com.
One of the last Aviatik-designed fighters to enjoy development before the end of World War 1, the D.VII served only as an experimental biplane fighter. Of single-seat, single-engine design, the D.VII was an offshoot of the earlier D.VI commitment and evolved by way of redesigned tail surfaces. A first-flight was recorded during October of 1918 but the end of the war in November meant the end to development of this machine.
As tested, the aircraft sported a length of 20 feet, a wingspan of 31.7 feet and a height of 8.1 feet. Empty weight was 1,642lb against an MTOW of 2,085 lb. Power was from a Benz Bz.IIIbm V8 geared liquid-cooled piston engine developing 200 horsepower and driving a four-bladed propeller at the nose (this was the same engine used in the D.VI). Proposed armament was 2 x 7.92mm LMG 08/15 'Spandau' machine guns synchronized to fire through the spinning propeller blades.
When flown, the D.VII recorded a maximum speed of 119 miles per hour and could cruise in the 103 mph range. Rate-of-climb was 800 feet-per-minute.
The D.VII's profile was consistent with biplane fighters of the period: an open-air cockpit set behind the upper wing assembly, a slab-sided fuselage and a fixed undercarriage wheeled at the two main members under the fuselage's mass. The upper and lower wing assemblies were joined via parallel struts which created two bays along the wing's length. The wing mainplanes were also of unequal span. The large, four-bladed wooden propeller at the nose was capped by a spinner which aided aerodynamics. The machine gun armament was set over the nose.
Like the D.VI before it, Aviatik designed the D.VII to compete in an upcoming D-type fly-off, this to come in October of 1918. Engine issues derailed the D.VI's attempt to compete in the earlier, second D-type fly-off. Regardless, neither design amounted to much, reaching only the prototype stage and nothing more.
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Relative Maximum Speed Rating
This entry's maximum listed speed (119mph).
Graph average of 90 miles-per-hour.
Graph showcases the Aviatik D.VII's operational range (on internal fuel) when compared to distances between major cities.
Useful in showcasing the era cross-over of particular aircraft/aerospace designs.
Unit Production Comparison
Comm. Market HI*: 44,000 units
Military Market HI**: 36,183 units