Environmental Engineering Reference
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(a)
Blade from injection mold, has carbon filaments, for 300 W unit.
(b)
Solid wood, 4400 series airfoil, for 4 kW unit.
(c)
Pultruded FRPs, special airfoil, for 10 kW unit.
(d)
Pultruded FRPs, airfoil 23012, notice weight in nose and foam to keep skins
from flexing, for 25 kW unit.
FIGURE 6.16
Blade cross sections from different manufacturing processes.
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