The history of Russian aviation. Kasyanenko No.5 (KPI-5)

In 1905, during the mechanical department of the CPI (Kiev Polytechnic Institute) on the initiative of NA Artemiev (lived 1870-1948) organized aeronautic section. That was the beginning of the second most important and largest aviation center of. In Kiev in different years worked: AS Kudashev — the founder and the first test of the Russian plane (1910), DP Grigorovich and II Sikorski — the famous Russian aircraft designers also FF Tereshchenko, DL Tomasevic, V. Grigoriev, brothers Kasyanenko and many others.

Evgeny Kasyanenko, along with his brothers Andrew and Ivan — all students CPI — in the period from 1910 to 1913 built four successful for the long plane which was given the designation "Kasyanenko No. 1 — 4."

The brothers Kasyanenko first World War had the idea to build combat plane. The idea of building super-maneuverable fighter biplanes having tselnopovorotnym box that provides a change in the trajectory of flight through the steering vectors of lift, has been the subject of many discussions and debates between young engineers. Offered different options and tear away the aerodynamic aircraft assembly, while Andrew Kasyanenko not been offered an extraordinary scheme winged torpedo. The plane dubbed the "torpedo" the official designation — KPI-5.

In 1916, the brothers built a very unique plane, which was given the name "Kasyanenko No.5" (CPD-5). His brothers suggested the aircraft as a fighter pilot with the installation before the 1st machine gun.

Corps fighter "Kasyanenko No.5" was a body of revolution elongated teardrop shape has a little rounded nose and pointy stekatel obviously in the back of the last point. Fuselage — Vykleenny wood (veneer) monocoque having unblemished aerodynamic shape. For mounting boxes of wings served as a special assembly on the fuselage sides, which allows you to change the angle of the in-flight wings.

Midship hull section housed approximately 40% level of the total length that was seven meters. Area of 0,725 m2 and a midship cross section is consistent with the motor Gnome "Monosupap" — 950 mm. This placement of the motor was supposed to provide an overview of the pilot greatest front (pilot seat was located in the bow), and a very comfortable environment for aiming and firing in the frontal hemisphere.

In the nose of the fuselage installed British machine gun, "Browning" (most likely it is a Lewis machine gun, having a disc store in the South American Browning was a belt-fed) with a removable rotary magazine capacity of 47 rounds (one round in the barrel) caliber 7.71 mm. Managing fire-rope performed. The substitution of the store only carried out on the ground. With all of this it was necessary to remove the gun through the lumen of the outside cabins. Aiming produced pilot manner known only to him, since there is no information about installation on the aircraft sights.

The fuel tank was installed between the frames 4 and 5. Further, to the frame No. 6, the most massive cross member fuselage was mounted axle box and crankshaft rotary engines "Monosupap." For supply to the carburetor into the carburetor air and for motor cooling cylinder between frames 5 and 6 were carried out sides of the fuselage trim rectangular recesses which overlap rail network. Slider, and its discharge shaft supported by eight pillars of termination nodes fuselage stringers.

During the vertical air combat maneuvering, the plan of inventors, for the enemy was to be a complete surprise, providing practical invulnerability "torpedoes" to fire from the enemy, from which fighter as well just go away. The mathematical model of this air combat imagined by Eugene Kasyanenko beliefs, the decision puzzles chase during the fight and the next exit to the position of fire, for example, in an orthogonal coordinate system, and the care of the pursuer with a sudden counter-attack — the polar coordinate system. Specifically, this incompatibility Eugene beheld a pledge of success.

KPI-5 plane was going in the workshops of the Kiev Polytechnic University. Tests were started only at the end of June 1917, because the production facilities of the university produced a large order for propellers for fighters RBVZ C-16 established II Sikorski.

Flight tests ran during … first try to disperse the aircraft on the airfield Syretsko. 01/07/1917, with the fall, which occurred after reaching is an energetic, there was a failure. The aircraft struck the tail. Was broken crutch, fuselage and tail screw. Running up on the line A. Kasyanenko, perhaps sharply raised biplane box to "take off". The car balance tselnopovorotnym stabilizer does not work out. The pilot was not injured.

Aircraft Kasyanenko No.5 — not the last design fellow aviators. In 1921, in Kiev on the basis of repair aircraft factory No.6 built a small airplane, the term 'Kasyanenko No.6 ". It was assumed that the device will be used as a cavalry scout why he did collapsible and very easy.

Aircraft performance properties fighter Kasyanenko No.5 (KPI-5):
The scope of the upper wing — 7.25 m;
The scale of the lower wing — 6.65 m;
Wing Area — 25.30 m;
Length — 6.96 m;
Empty weight — 463 kg;
Normal take-off weight — 638 kg;
Motor type — PD Gnome Monosaupape;
Power — 100 hp;
Flight duration — 2.5 hours;
Service ceiling — 4000 m;
The crew — 1 person;
Armament — 7.7-mm machine gun.

The list of sources:
Shavrov VB History of aircraft construction in the USSR until 1938
Mikhail Maslov. Russian aircraft 1914-1917

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