Accession Number:

AD0481774

Title:

VISIBILITY OF NAVIGATIONAL LIGHTS IN A SUBMARINE ARRAY

Descriptive Note:

Interim rept. 1 Jul 1964-15 Feb 1965

Corporate Author:

NAVY MINE DEFENSE LAB PANAMA CITY FL

Personal Author(s):

• Larrimore, Herbert

Report Date:

1966-04-01

Pagination or Media Count:

31.0

Abstract:

The U. S. Navy Mine Defense Laboratory conducted a series of tests on a simulated nuclear submarine running light array at sea under normal nighttime operating conditions. The tests were made to determine the maximum range at which the light array could be recognized. Observers were selected from military personnel who normally stand duty watch as lookouts. Tests indicated that with an atmospheric transmission rate of 70 per nautical mile the maximum range of visibility for the lights in the array was white masthead light, 9.3 miles green starboard sidelight, 2.1 miles and red port sidelight, 2.3 miles.

Descriptors:

• *NUCLEAR POWERED SHIPS
• *SUBMARINES
• *NAVIGATIONAL LIGHTS
• LIGHT TRANSMISSION
• SAFETY
• RANGE(DISTANCE)
• COLOR VISION
• NIGHT SKY
• VISIBILITY
• PERFORMANCE(ENGINEERING)
• HUMANS
• EYE

Subject Categories:

• Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE