"A siren kiddie’s worst nightmare"

- Ashdenpaw1

requires tone generator mod

AG1 to sound siren

you probably didn't see the original 2001-SRNB build, and i am glad you didn't. it had a pretty basic model and looked more like a 2001-SRN. no i did not add the piece of the stator sticking outside.

The 2001-SRNB (Model 2001-SRN, Beltless) was the 5th generation successor to the 2001-SRN, and was introduced in 2002. The 2001-SRNB is essentially a 4th generation 2001-SRN with an improved rotator mechanism. Rather than using the rectangular belt-driven rotator from the Thunderbolt, the 2001-SRNB introduced a new cube-shaped direct-drive rotator which eliminated the need for belts and made the siren require less maintenance. The rotator runs at 2 RPM from factory, and is adjustable up to 6 RPM. The DC motor is directly coupled to the gear reducer, which then spins the rotator's main gear. The chopper motor was also upgraded from 6 hp to 6.5 hp, which increased the siren's sound output to 128 dB at 100 ft.

The 2001-SRNB also introduced the decals that every later 2001 would use. Early 2001-SRNBs used the smaller FS logo from the 2001-SRN, but this was updated to the larger logo in 2004. The 2001-SRNB had the shortest production run, only being produced for 4 years from 2002 until 2006. Despite its short production span, it proved to be very popular and is still a common find today.