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Kondor D.VII


Single-Seat, Single-Engine Fighter Prototype (1918)


Aviation / Aerospace

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The Kondor D.VIIwas a biplane evolution of the earlier Dreidecker triplane form for the German company during World War 1.



Authored By: Staff Writer | Last Edited: 07/31/2019 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.
During World War 1 (1914-1918), Kondor Flugzeugwerke of the German Empire was based out of Essen and the primary personnel in the company were Walter Rethel and Paul G. Ehrhardt. During mid-1917, the company tried, rather unsuccessfully, to sell the German air service on its "Dreidecker" single-seat triplane fighter as severe vibration issues kept this design grounded. Then came the D.I, D.II, and D.VI fighters which adopted a more traditional biplane wing arrangement - save for the D.VI which went a step further and attempted to split the upper wing member in an effort to afford its pilot a better view out-of-the-cockpit. None of these designs succeeded in their attempts but this did not stop the company from moving forward with other design ideas.

The D.VII was the next evolution of the Kondor fighter line and an offshoot of the original Dreidecker - though redesigned from the ground-up into a biplane fighting form. This meant the loss of the uppermost wing member common to the triplane arrangement which simplified construction, saved on weight, and reduced drag in the process. Over the hub of the propeller was fitted an oversized spinner for additional aerodynamic efficiency. The fuselage was well-rounded and streamlined from nose-to-tail. The tail was made up of the usual triple plane arrangement and the undercarriage was wheeled at the main legs. The two wing assemblies were joined to one another by a rather unique tripod-style strut support system with the upper wing further connected to the top of the fuselage and the lower wing networked into the undercarriage supports.

Internally, a steel-tubed "cage" made up the framework of the aircraft with metal used at critical areas (such as the engine block). Plywood could be found at the fuselage, along the lower wings, and throughout the tail section. Before long, the Mercedes D.III was used to power the new aircraft and this outputted 160 horsepower when driving the two-bladed propeller unit at the nose.

Armament would have followed the Kondor norm - 2 x 7.92mm LMG 08/15 air-cooled machine guns set over the nose and synchronized to fire through the spinning propeller blades.

Testing of the D.VII occurred during the Spring of 1918 but the design was not included as part of the June 1918 trials to fulfill the D-type fighter requirement for the German air service. Even so, by this time development of the D.VII appears to have ended with attention having moved on to the Kondor E.3 (D.I) parasol-winged fighter for July 1918 (detailed elsewhere on this site).

Specifications



Service Year
1918

Origin
Imperial Germany national flag graphic
Imperial Germany

Status
CANCELLED
Development Ended.
Crew
1

Production
1
UNITS


Kondor Flugaeugwerke - German Empire
National flag of the German Empire German Empire (cancelled)
(OPERATORS list includes past, present, and future operators when applicable)
Air-to-Air Combat, Fighter
General ability to actively engage other aircraft of similar form and function, typically through guns, missiles, and/or aerial rockets.
Interception
Ability to intercept inbound aerial threats by way of high-performance, typically speed and rate-of-climb.
X-Plane (Developmental, Prototype, Technology Demonstrator)
Aircraft developed for the role of prototyping, technology demonstration, or research / data collection.


Length
20.3 ft
(6.20 m)
Width/Span
27.9 ft
(8.50 m)
Height
7.5 ft
(2.30 m)
Empty Wgt
1,323 lb
(600 kg)
MTOW
3,814 lb
(1,730 kg)
Wgt Diff
+2,491 lb
(+1,130 kg)
(Showcased structural values pertain to the base Kondor D.VII production variant)
Installed: 1 x Mercedes D.III engine developing 160 horsepower and driving a two-bladed propeller unit at the nose.
Max Speed
112 mph
(180 kph | 97 kts)
Range
157 mi
(252 km | 467 nm)


♦ MACH Regime (Sonic)
Sub
Trans
Super
Hyper
HiHyper
ReEntry
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030


(Showcased performance specifications pertain to the base Kondor D.VII production variant. Compare this aircraft entry against any other in our database. View aircraft by powerplant type)
PROBABLE:
2 x 7.92mm LMG 08/15 machine guns synchronized to fire through the spinning propeller blades.


Supported Types


Graphical image of an aircraft medium machine gun


(Not all ordnance types may be represented in the showcase above)
Hardpoint Mountings: 0


D.VII - Base Series Designation; single prototype completed and test flown in mid-1918.


General Assessment
Firepower  
Performance  
Survivability  
Versatility  
Impact  


Values are derrived from a variety of categories related to the design, overall function, and historical influence of this aircraft in aviation history.
Overall Rating
The overall rating takes into account over 60 individual factors related to this aircraft entry.
40
Rating is out of a possible 100 points.
Relative Maximum Speed
Hi: 120mph
Lo: 60mph
This entry's maximum listed speed (112mph).

Graph average of 90 miles-per-hour.
City-to-City Ranges
NYC
 
  LON
LON
 
  PAR
PAR
 
  BER
BER
 
  MOS
MOS
 
  TOK
TOK
 
  SYD
SYD
 
  LAX
LAX
 
  NYC
Kondor D.VII operational range when compared to distances between major cities (in KM).
Aviation Era Span
Pie graph section
Showcasing era cross-over of this aircraft design.
Unit Production (1)
1
36183
44000
This entry's total production compared against the most-produced military and civilian aircraft types in history (Ilyushin IL-2 and Cessna 172, respectively).
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