Козярчук Л.: ЛК-1
Kozyarchuk L.: LK-1

General data

Producer info

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Names and dates
Market original model designation
ЛК-1
Market model designation (english translation or spelling)
LK-1
Project start date
1986-01
Date of prototype completion
1986-08
Tests start date
1986-09
First flight date and time
1989
Country of manufacture
Ukraine
People involved
Leonid Kozyarchuk {Леонід Козярчук}Constructor
Config info
Rotorcraft typeAutogyro
Weights
Maximum Takeoff Weight (MTOW)
126
kg
Manufacturers empty weight (MEW)
48
kg
Cabin and cockpit
Maximum number of people onboard
1
External dimensions
Length
2.55
m
Width
1.45
m
Height
1.97
m
Wheelbase
1.16
m
Main landing gear wheel diameter
0.32
m
Main landing gear wheel width
0.06
m
Nose landing gear wheel diameter
0.22
m
Nose landing gear wheel width
0.05
m
Main rotor
Main rotor type
Semi-rigit
Cyclic control
Tilting rotor shaft
Main rotor diameter
5
m
Number of blades
2
Preset blade incidence angle
3
°
Main rotor blade chord
0.14
m
Main rotor blade airfoil
NACA 23012
Propeller
Propeller diameter
0.80
m
Propeller pitch
0.35
m
Number of blades
2
Propeller material
Wood
Thrust
373
N
Powerplant
Engine model
1/2 IZ-P-4 {ИЖ-Ю-4}
Engine dry weight with propeller
10
kg
Total maximum power
16
HP
Angular speed at max power
6000
rpm
Fuel system
Fuel tank capacity
2.50
l
Performance
Maximum horizontal flight speed (Vh)
85
km/h
Best range speed (Vbr)
75
km/h
Take-off speed
50
km/h
Best rate of climb
1
m/s
Best glide ratio
5
Speed at the best glide ratio
60
km/h
0.0666