Blade length 

44.0m     

Design type class   

IEC  IIIA   

Max. chord length   

3.24 m 

Pre-bending    

1.8  m 

Pre-cone angle/can be different 

1.0°

Mass without  T-Bolt 

6247kg 

Mass of  T-bolt    

appr.210 kg

Radius center of mass 

12.51  m 

Design  operation life   

20  years 

1st/2nd flapwise frequency

0.75/2.11Hz

1st/2nd edgewise frequency 

1.23/4.14Hz

Operation  temperature range 

-30 ℃~+50℃

Survive  temperature range  

-45 ℃~+55℃

Material   

GFRP

Operation Parameter           

Rated power 

1500kW 

Rotor Diameter 

90.42m 

Number of blades

3 

Power control  

Pitchable  

Speed range 

9.5-16 rpm

Rated tip speed

75.8 m/s 

Rated rotor speed  

16 rpm

Cut in wind speed (10 minutes mean)    

3 m/s 

Cut out wind speed (10 minutes mean) 

25 m/s 

Survive wind speed (3 seconds mean)

52.5 m/s  

Optimal tip speed ratio

9.4   

Performance coefficient at TSR-opt 

0.49   

Blade Connection           

Principle 

T-bolt

Bolt hole circle diameter

1800m

Number, Size of tension bolts

54xM30 10.9  

Outer diameter of root

1890mm