PZL Świdnik: SM-2
PZL Swidnik: SM-2

General data

Producer info

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Names and dates
Project name
S-2
Project name (english translation or spelling)
S-2
Market original model designation
SM-2
Market model designation (english translation or spelling)
SM-2
Project start date
1957
First flight date and time
1959-11-18
(...)
1960
Country of manufacture
Poland
People involved
Zbigniew WeinerDesign engineer
Lech Babinski {Lech Babiński}Design engineer
Waclaw Nastaj {Wacław Nastaj}Design engineer
Boleslaw Wertel {Bolesław Wertel}Design engineer
Henryk Czerwinski {Henryk Czerwiński}Design engineer
Stanislaw Bienia {Stanisław Bienia}Design engineer
Lechoslaw Kalinowski {Lechosław Kalinowski}Design engineer
PatyraDesign engineer
Boleslaw Majerczyk {Bolesław Majerczyk}Design engineer
Wieslawa Jaworska {Wiesława Jaworska}Design engineer
Eugeniusz KaczorDesign engineer
Ryszard Wiklinski {Ryszard Wikliński}Flight text engineer
Jerzy TyrchaProject leader
Stanislaw Wiacek {Stanisław Wiącek}Test pilot
Config info
Rotorcraft typeHelicopter
Weights
Maximum Takeoff Weight (MTOW)
2550
kg
(...)
2493
kg
2440
kg
Useful load
625
kg
Manufacturers empty weight (MEW)
1890
kg
(...)
1815
kg
Cabin and cockpit
Maximum number of people onboard
5
Cockpit seating arrangement
Side-by-side
External dimensions
Fuselage length
12.09
m
Height
3.30
m
(...)
3.30
m
Total length (rotors turning)
16.95
m
Landing gear track
3.29
m
Wheelbase
3.18
m
Main landing gear wheel diameter
0.50
m
Main landing gear wheel width
0.15
m
Nose landing gear wheel diameter
0.30
m
Nose landing gear wheel width
0.13
m
Main rotor
Main rotor diameter
14.35
m
(...)
14.30
m
Powerplant
Engine model
LiT-3
(...)
AI-26 W
Engine model (english translation or spelling)
LiT-3
(...)
AI-26 W
Engine type
Piston
Number of engines
1
Total maximum power
575
HP
Performance
Maximum horizontal flight speed (Vh)
169
km/h
(...)
160
km/h
Cruise speed (Vc)
130
km/h
Best rate of climb
4.50
m/s
Maximum service ceiling
4002
m
Hover ceiling OGE
1800
m
(...)
1859
m
Maximum range (option 1)
325
km
(...)
306
km
350
km
Maximum range (option 2)
499
km
(...)
450
km
Maximum flight endurance (option 1)
2.92
h
Maximum flight endurance (option 2)
4.92
h
0.1343