SA

Description:

Long wave search sets. SA is installed on destroyers or vessels of similar size, SA-1 on ships lighter than destroyers. Both sets provide range and bearing on "A" scopes only; PPI's will be added later. SA has provisions for transmitting range and bearing to remote repeaters. Both sets have provisions for IFF connections, for identification of targets, and the SA also has built-in BL and BI antennas.

Performance

For SA the estimated reliable range is 40 miles on medium bombers at 10,000', with antenna at 100'. Range accuracy is ± 100 yds. Bearing accuracy, ± 1°. For SA-1 the estimated reliable range is 25 miles on large aircraft, 8 miles on battleship. Range accuracy is ± 100 yds. Bearing accuracy is 3° to 5° on SA-1, 1° on SA (lobe switching). There is not elevation control on either set.

Transportability:

Shipments of both sets include spares. SA is packed in 24 units, weighing when crated 3,300 lbs. Largest SA package is 110" x 69" x 33.5", and weighs 642 lbs. SA-1 is packed in 23 units weighing when crated 2,444 lbs. Largest package is 78" x 65.5" x 34.5" and weighs 338 lbs.

Installation:

SA has 12 components and weighs a total of approximately 1500 lbs. SA-1 has 12 components and weighs a total of approximately 900 lbs. SA antenna measures 5' x 8'8". Including pedestal, it weighs 500 lbs. SA-1 antenna measures 5' x 6', and weighs (including pedestal) 100 lbs. On both sets the antenna should be mounted as high as possible, preferably 100 feet or more above the water.

Personnel:

For both sets a minimum of one operator per shift is required.

Power:

Primary power required by SA is 1950 watts at 115 volts, 60 cycles; by SA-1, 2 KVA, 115 volts, 60 cycles.