What is the spiral thing wrapped around the periscope shaft?

maillemaker · 07-16-14, 10:15 PM

What is the spiral thing wrapped around the periscope shaft?

Steve

Sailor Steve · 07-17-14, 08:26 AM

They are wires, designed to disrupt the water flow around the periscope and help keep the vibration down.

maillemaker · 07-17-14, 02:21 PM

Cool.

Steve

desirableroasted · 07-17-14, 07:06 PM

Quote:

Originally Posted by Sailor Steve

They are wires, designed to disrupt the water flow around the periscope and help keep the vibration down.

I could have sat here from here to Sunday and I never would have come up with that.

The stuff you learn just hangin' around.

Pisces · 07-18-14, 07:19 AM

Quote:

Originally Posted by desirableroasted

...
The stuff you learn just hangin' around.

Great, start giving ideas to Bernard on how to use that spiral slide while he is on watch duty.

banryu79 · 07-18-14, 08:21 AM

Quote:

Originally Posted by Pisces

Great, start giving ideas to Bernard on how to use that spiral slide while he is on watch duty.

- But... I'm taking wind measurements, herr kaleun!! -
Bernard

Archer7seven · 07-19-14, 12:37 AM

You will notice them on some car antennas too. It forces the resistance to move along the surface rather than against it. It supposedly also reduced the wake.

d@rk51d3 · 07-19-14, 02:33 AM

Used in bridge construction too, IIRC.

desirableroasted · 07-19-14, 04:15 AM

and some brands of birthday candles.

Pisces · 07-19-14, 05:49 AM

For those still sliding around in circles around the periscope mast trying to figure out what is meant in this topic:

07-16-14, 10:15 PM	#1
maillemaker Sea Lord Join Date: Apr 2007 Posts: 1,639 Downloads: 75 Uploads: 0	What is the spiral thing wrapped around the periscope shaft? What is the spiral thing wrapped around the periscope shaft? Steve

07-17-14, 08:26 AM	#2
Sailor Steve Eternal Patrol Join Date: Nov 2002 Location: High in the mountains of Utah Posts: 50,369 Downloads: 745 Uploads: 249	They are wires, designed to disrupt the water flow around the periscope and help keep the vibration down. __________________ “Never do anything you can't take back.” —Rocky Russo

07-19-14, 12:37 AM	#7
Archer7seven Gunner Join Date: May 2013 Posts: 95 Downloads: 352 Uploads: 0	You will notice them on some car antennas too. It forces the resistance to move along the surface rather than against it. It supposedly also reduced the wake. __________________ Mir nach, ich folge.

07-19-14, 04:15 AM	#9
desirableroasted Grey Wolf Join Date: Feb 2006 Location: In the mountains, now. On the edge of the sea before. Posts: 933 Downloads: 47 Uploads: 0	and some brands of birthday candles. __________________ "Well, now, that's true... the IXC is a bit of a chick magnet..but you really can't beat the VIIB for off-road fun."

07-17-14, 02:21 PM	#3
maillemaker Sea Lord Join Date: Apr 2007 Posts: 1,639 Downloads: 75 Uploads: 0	Cool. Steve

07-19-14, 02:33 AM	#8
d@rk51d3 Sea Lord Join Date: Sep 2006 Location: Adelaide, South Australia Posts: 1,951 Downloads: 207 Uploads: 0	Used in bridge construction too, IIRC.

07-19-14, 05:49 AM	#10
Pisces Silent Hunter Join Date: Dec 2004 Location: AN9771 Posts: 4,904 Downloads: 304 Uploads: 0	For those still sliding around in circles around the periscope mast trying to figure out what is meant in this topic: