Hawkins Class Cruiser (1917)

Four of the five cruisers of the Hawkins Class (sometimes called the Raleigh Class or Effingham Class) that were ordered were completed as cruisers, but one was completed as the aircraft carrier Vindictive. Although their 7.5-in guns lent them to the notion of being heavy cruisers, their single pedestal mountings yet resembled the British model of an early light cruiser.

Machinery

'Electrical Distribution Scheme

Generators

In 1916, it was approved that the ships were to be given four 105-kw dynamos at 220 volts.

Guns

The guns had armoured shields of 1 inch thickness on the face, sides and top, weighing 7.25 tons.

Torpedoes

• Two 21-in submerged broadside tubes forward, angled 90 degrees and horizontal.
• Four 21-in above-water tubes, fixed and with gyro angle pads for adjusting torpedoes.

Fire Control

Evershed Bearing Indicators

The ships almost surely had Evershed gear for gun control from delivery, as approval for their outfits was issued in 1916.

Torpedo Control

Torpedo Control, as proposed in 1916
Note that it was later determined that the transmitters shown in the TS and the corresponding receivers in the control positions was not to be provided, as the information would not be available in the TS.

The torpedoes could be controlled and fired from the CT or the TCT, with firing keys routed through COSes in the TS.

The CT had

• Two gyro angle transmitters
• Two order transmitters
• One range receiver (from TCT)
• One range and torpedo deflection transmitter (to TCT)
• One bearing transmitter (to TCT)

The TCT had

• Two gyro angle transmitters
• Two order transmitters
• One range transmitter (to CT)
• One range and torpedo deflection receiver (from CT)
• One bearing transmitter (from CT)

The tubes had:

• Two gyro angle receivers, one from CT and one from TCT
• Two order receivers, one from CT and one from TCT

All three locations had fixed Navyphone connections to the other two, and the CT also had voice pipes to the torpedo tubes.

See Also

• Wikipedia