ALIZEO - Tiltable Wind Turbine

Concrete slab and cradle :
Slab surface : 17.5m x 10.5m
Slab thickness : around 2m
Ground measurements of cradle : 2m x 5m

Tilting mechanism:
Height of tilting axis : 7.5m
Anchoring within the fixed chassis
Hydraulically tilting unit
Displacement of main piston : 7m
Counterweight : 2 x 50 tonnes (steel/concrete)
Gravitational lock in vertical position  

Mast:
2 segments of 20m, 22 and 25 tonnes  

Hydraulic unit :
Mobile hydraulic unit mobile common for  
5 wind turbines or fixed hydraulic groups
30kW Electric motor or power take-off  
200 bars tandem piston pump  
Biodegradable hydraulic oil

Tilting:
Tilting time down / up : 1 hour  
Power supply : mains, generator set or power take-off
Tilting down / up withstands winds of 100 km/h  
Vertical position winds speed  threshold : 150km/h
Horizontal position winds speed  threshold : 250km/h, top speeds of 270km/h