wingless
Active Member
The Kahlenberg 117AMP Whistle has been selected, purchased and installed on my boat. This is a new old-stock unused whistle.
It is loud (122dBA at 1 meter), also tolerant of a wide pressure range (50 - 200 PSI) and consumes lots and lots of air (219 SCFM at 100 PSI).
It has a very sweet sound. The tonal quality of the whistle is outstanding.
This has a low pitch, at 500 Hz.
Specification Sheet
http://www.kahlenberg.com/sites/default/files/pdfs/2-5304_0.pdf
Glossy Web Page
http://www.kahlenberg.com/products/industrial-signaling/whistles/air-steam-whistle-model-117
Glossy Data Sheet
http://www.kahlenberg.com/sites/default/files/pdfs/air-steam-whistles-brochure_1.pdf
It turns out there are instructions included w/ new Kahlenberg whistles that describe changing the gap to have the whistle sound properly at different pressures.
A quick check showed that mounting in my planned location will be close to having enough room. My boat has an open array radar, where the antenna spins around above the pedastle. My installation has 5° wedges under the pedastle to angle it forward, so that the array remains flat while the boat is operating at speed, on a plane.
The plan is to mount the whistle on the arch's flat surface, adjacent to the radar pedastle, at the rear. The taller 117AMP whistle won't clear the rotating array at the front, but it just clears at the rear. I discovered this after disassembling some canvas to permit me to do a trial fit, to see that this will work.
The plan was to have the whistle on the top of the arch w/ a ½" pipe nipple poking through a hole in the arch. The nipple will be wrapped w/ a bicycle tire inner tube, then a hose clamp used to compress the rubber, to secure it in-place on the arch.
Kahlenberg 117AMP Whistle A/V Clip
http://vid101.photobucket.com/albums/m52/wingless-pics/Boat/Air/Kahlenberg 117 A-V.mp4
Here are images showing my Kahlenberg 117 whistle mounted on the arch of my 2000 Searay 380 Sundancer.
The location was selected to be close to the open array pedestal because the factory makes that location a flat rectangle for mounting the radar. The rest of the arch is a curved surface and I wanted the whistle to be straight vertical.
The base of the whistle has a ½" NPT female thread and no other mounting points.
The cavity below the whistle does not have much top-to-bottom room, so I drilled a clearance hole for the ½" pipe nipple, wrapped the nipple w/ a cut tire inner tube and used a hose clamp to expand the rubber, clamping the whistle to the fiberglass.
The whistle is very secure, w/o any movement or wobble.
That location also has internal arch reinforcement with a thicker panel glassed-in during manufacture by Searay, to support the radar array.
wingless' Kahlenberg Chimetone D-1 Horns
http://www.ybw.com/forums/showthread.php?427268-wingless-Kahlenberg-Chimetone-D-1-Air-Horns
wingless' Custom Oasis High-Volume High-Pressure Compressed Air System
http://www.ybw.com/forums/showthrea...-Volume-High-Pressure-Oasis-Compressor-System
It is loud (122dBA at 1 meter), also tolerant of a wide pressure range (50 - 200 PSI) and consumes lots and lots of air (219 SCFM at 100 PSI).
It has a very sweet sound. The tonal quality of the whistle is outstanding.
This has a low pitch, at 500 Hz.
Specification Sheet
http://www.kahlenberg.com/sites/default/files/pdfs/2-5304_0.pdf
Glossy Web Page
http://www.kahlenberg.com/products/industrial-signaling/whistles/air-steam-whistle-model-117
Glossy Data Sheet
http://www.kahlenberg.com/sites/default/files/pdfs/air-steam-whistles-brochure_1.pdf
It turns out there are instructions included w/ new Kahlenberg whistles that describe changing the gap to have the whistle sound properly at different pressures.
A quick check showed that mounting in my planned location will be close to having enough room. My boat has an open array radar, where the antenna spins around above the pedastle. My installation has 5° wedges under the pedastle to angle it forward, so that the array remains flat while the boat is operating at speed, on a plane.
The plan is to mount the whistle on the arch's flat surface, adjacent to the radar pedastle, at the rear. The taller 117AMP whistle won't clear the rotating array at the front, but it just clears at the rear. I discovered this after disassembling some canvas to permit me to do a trial fit, to see that this will work.
The plan was to have the whistle on the top of the arch w/ a ½" pipe nipple poking through a hole in the arch. The nipple will be wrapped w/ a bicycle tire inner tube, then a hose clamp used to compress the rubber, to secure it in-place on the arch.
Kahlenberg 117AMP Whistle A/V Clip
http://vid101.photobucket.com/albums/m52/wingless-pics/Boat/Air/Kahlenberg 117 A-V.mp4
Here are images showing my Kahlenberg 117 whistle mounted on the arch of my 2000 Searay 380 Sundancer.
The location was selected to be close to the open array pedestal because the factory makes that location a flat rectangle for mounting the radar. The rest of the arch is a curved surface and I wanted the whistle to be straight vertical.
The base of the whistle has a ½" NPT female thread and no other mounting points.
The cavity below the whistle does not have much top-to-bottom room, so I drilled a clearance hole for the ½" pipe nipple, wrapped the nipple w/ a cut tire inner tube and used a hose clamp to expand the rubber, clamping the whistle to the fiberglass.
The whistle is very secure, w/o any movement or wobble.
That location also has internal arch reinforcement with a thicker panel glassed-in during manufacture by Searay, to support the radar array.
wingless' Kahlenberg Chimetone D-1 Horns
http://www.ybw.com/forums/showthread.php?427268-wingless-Kahlenberg-Chimetone-D-1-Air-Horns
wingless' Custom Oasis High-Volume High-Pressure Compressed Air System
http://www.ybw.com/forums/showthrea...-Volume-High-Pressure-Oasis-Compressor-System
