CКБ РКИИГА: Рига-72
SKB RKIIGA: Riga-72

General data

Producer info

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Data sources

Names and dates
Market original model designation
Рига-72
Market model designation (english translation or spelling)
Riga-72
Date of prototype completion
1972
Tests start date
1972
First flight date and time
1972-08
People involved
Vladlen Tseytlin {Владлен Цейтлин}Test pilot
Valentin Ustinov {Валентин Устинов}Function unknown
Donat Osokin {Донат Осокин}Function unknown
Vladimir Kapustin {Владимир Капустин,}Function unknown
Oleg Garbarenko {Олег Гарбаренко}Function unknown
Config info
Rotorcraft typeAutogyro
Weights
Maximum Takeoff Weight (MTOW)
241
kg
Manufacturers empty weight (MEW)
131
kg
Cabin and cockpit
Maximum number of people onboard
1
External dimensions
Length
3.42
m
Width
1.67
m
Height
1.97
m
Wheelbase
1.05
m
Main landing gear wheel diameter
0.26
m
Main landing gear wheel width
0.11
m
Nose landing gear wheel diameter
0.20
m
Nose landing gear wheel width
0.08
m
Control system
Lateral control
Main rotor
Longitudinal control
Main rotor
Yaw control
Rudder
Main rotor
Main rotor type
Semi-rigit
Cyclic control
Tilting rotor shaft
Main rotor diameter
6.20
m
Main rotor direction of rotation
Clockwise
Number of blades
2
Main rotor blade chord
0.18
m
Propeller
Mode
Pushing
Propeller diameter
1.20
m
Propeller direction of rotation
Counterclockwise
Propeller pitch mode
Constant pitch
Number of blades
2
Propeller material
Wood
Powerplant
Engine model
McCulloch 4318
Engine type
Piston
Engine dry weight
36
kg
Number of engines
1
Total maximum power
72
HP
Angular speed at max power
4100
rpm
Fuel system
Fuel tank capacity
20
l
Performance
Maximum horizontal flight speed (Vh)
140
km/h
Cruise speed (Vc)
100
km/h
Landing speed
15
km/h
Maximum service ceiling
3500
m
Maximum range
130
km
0.0703