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Kasyanenko KPI-5 and others

borovik

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Kasyanenko KPI-5 and others... or Luft'19/II
Several projects WWI united by one common desire to improve agility/ manoeuvrability, relegating the engine to the abaft cockpit, near the center of mass of aircraft:
1) Junkers J-5 II
2) Draft airplane M. Yefimov's of 27.8.1916
3) Airplane brothers Kasyanenko KPI-5
Sources: «Wings of the Motherland» № 2 2002
«Tech and arms» № 3-4 1995
 

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Wurger

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Excellent, Anatoliy, as always. Thanks a lot for those "goodies".
 

robunos

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A couple more for you, the RAF FE.6, and the french Dufaux C1.

from 'War Planes of the First World War: Figters', volumes two and four.
Apologies for the poor quality, they're scans of a xerox copy.
Also some more here:-

http://www.losteagles.com/download/losteagles1/lost_eagles.pdf

cheers,
Robin.
 

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redstar72

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Robunos, thanks for the link! The described machines are very interesting; some of them I knew before, but a lot of them I didn't knew. Also thanks for the FE.6 drawing; it's a very unusual airchart, and I didn't hear about it.

You have a little mistake in the Dufaux index: it's a two-seat fighter, so it isn't "C1", but Dufaux C.2. Here is the drawing, the same as yours, but larger:
http://www.wunderwaffe.narod.ru/Magazine/AirWar/85/Draw/02.gif

The specifications of Dufaux C.2:
Wingspan - 7.96 m
Length - 6.10 m
Height - 2.80 m
Empty weight - 530 kg
Takeoff weight - 740 kg
Engine - Le Rhone 9J (81 kW / 110 hp)
Max. speed - 140 km/h
Endurance - 2 hours

Only one prototype was built in 1916, and it crashed during the landing after its 4th flight. I'm adding a photo, unfortunately with poor quality.
 

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robunos

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it's a two-seat fighter, so it isn't "C1", but Dufaux C.2.
'Lost Eagles' refers to it as Dufaux C1, 'War Planes of the First World War: Fighters' simply refers to it as the 'Dufaux single engined scout'
French great war aircraft designations aren't my strong point, I have to say....

cheers,
Robin.
 

Tophe

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Website
cmeunier.chez-alice.fr
at http://www.ailesahs.com/wp/?page_id=1577
is mentioned “(1915-1916 Project of fighter Dufaux-C1, two-seat biplane, with pusher propeller in the middle of the fuselage. The prototype was tested in 1916.”
In “the complete book of fighters” is the same picture, better quality, with a little article, and just the name Dufaux fighter.
A modern model show it even better, with French article, at
http://www.pionnair-ge.com/spip1/spip.php?article35

the picture being http://www.pionnair-ge.com/spip1/IMG/jpg/Dufaux-C1-profil.jpg
 

Avimimus

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Hello,

Sorry to dredge up an old thread, but it just occured to me: ;)
How is the KPI-5 supposed to work? (the variable incidence wings???)
 

Tophe

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The photographs of the KPI-5 seem to show all the wires/beams are connected to a central point in the fuselage side, so a rotation command/unlocking may be applied by the pilot, and the airflow pushes the wings in the other position (what is made with power on the F-8 Crusader). For braking in flight/dogfight or higher lift for take-off/landing at minimum speed. But to have the wings back in the other position, some force has to be applied, and maybe there is a connection with the engine, either direct or through a battery/electric engine or something. No? (just my guess, not historical source)
 

borovik

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A box of the wings could pivot about the nodes on the middle rack (manual), which ensured the flight path change due to the vector controlled lift, ie Tophe rights ;).

VKh-4 / "Dvuhvostka", "Anadva", "Anatra-Hion number 4" (1915-1916)
Engines 2 - "Salmsom" power of 140 hp
Length 7700mm
Span 19000mm
The crew of 3-6 people
 

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