WesWorld

Notes on electronics used by the Atlantean navy.

Dradis stands for Declension, Right Ascension, and Distance. Right Ascension and Declination are a system of coordinates used in astronomy to determine the location of stars, planets and other objects in the sky. They are similar to the system of longitude and latitude used to locate places on the Earths surface. Other nations use the term RADAR which stands for RAdio Direction And Ranging which sometimes leads to the translation of Dradis into Direction, Range And DIStance, which is false as the last two words are synonymous in meaning.

Electronic equipment Abreiviations

B = For capital ships and cruisers
C = Centimetric
D = For Destroyers
F = Fire-control radar (gun-laying)
L = For coastal (littoral) craft
M = Metric
N = Millimetric
P = Shipborne
Q = Airborne
U = For submarines
V = Carrier Beacon
W = Wireless warning
X = Experimental
Y = Wireless Ranging (Y-ranging)

YPBM-X
Type: Prototype surface-search Y-range for capital ships and cruisers
Set Range: *Censored*
Date in Service: 1935
Notes: Eventually produced as YPBM.

YPBM
Type: Production surface-search Y-range for capital ships and cruisers
Set Range: *Censored*
Date in Service: 1936
Notes: Versatile enough to detect aircraft at fifty miles or more in certain conditions. Similar to US CXAM.

YPBV
Type: Carrier direction-finding beacon
Set Range: *Censored*
Date in Service: 1936
Notes: Helps carrier guide back returning aircraft.

YPDM
Type: Metric Y-range set for destroyers
Set Range: *Censored*
Date in Service: 1936
Notes: Limited production.

YQAM
Type: Airborne Y-range set for airships and aircraft
Set Range: *Censored*
Date in Service: 1937
Notes: N/A

YQAC
Type: Airborne Y-range set for airships and aircraft, centimetric
Set Range: *Censored*
Date in Service: 1939
Notes: N/A

YPBC-F
Type: Gun-laying centimetric Y-range for capital ships and cruisers.
Set Range: *Censored*
Date in Service: 1939
Notes: Equivalent of SG radar.

YPDC-F
Type: Gun-laying centimetric Y-range for destroyers, surface search.
Set Range: *Censored*
Date in Service: 1939
Notes: Equivalent of SF or SU radars.

YPUC
Type: Centimetric Y-range for submarines, surface search only.
Set Range: *Censored*
Date in Service: 1940
Notes: Equivalent of SJ radars.