Series 18T
The Series 18T is available in diameters from 5' thru 20'. The blade is a fabricated design tapering to the blade tip. The tapered section is also curved, thereby performing as a tapered, twisted blade section. The hub is cast aluminium and comes with a tapered mounting bushing.
hub:	Cast 356 Aluminium
Blade Clamp:	Cast 356-T6 Aluminium
Hub & Blade Clamp:	Cast Aluminium ASTM B-26, SB70A (356-T6)
Bushing & Blade Clamp Bolts:	Zinc plated grade 5 carbon steel.
Hub Bushing:	Ductile iron.
Blade Shank:	Cast Aluminium  (356-T6).
Blade shank Bolts:	Grade 5 carbon steel.
Blade:	5052H32 Aluminium sheet and extruded inner beam (6061T6) bonded with epoxy and riveted.
Blade Tip:	6061-0 Aluminium sheet
* Dimensional Data included with Series 18T brochure. Request catalogue. Specifications: • Series 5C • Series 7E • Series 12F (Aluminium) • Specifications: • Series 12GRP (Fibreglass) Installation Instructions