SECRET
c. High speed has an even greater importance in Colony waters. Reliance is placed on local intelligence and short range warning provided by the Marine Police craft on patrol. If a confrontation takes place in Colony waters, and support is required, it is essential that this support be given promptly.
d. The low speed requirement of about 8 knots for the replacement patrol craft should present no difficulty but the vessels must retain their manoeuvrability at this speed. A high speed of the order of 35 to 40 knots is desirable, but this capability might be difficult to attain within realistic financial limits. High speed usually means too much sophistication, too many men to run and maintain the engines and too much training. This adds up to too much expense. It is considered that 25 knots is the minimum acceptable maximum speed when economy in cost is paramount.
مجھ
24. Endurance. Average patrol duration is three days away from base. During the typhoon season or for extended patrols this may have to be extended to seven days. A range of 2,000 miles at cruising speed is required for operational deployments overseas.
25. Propulsion. Diesel engines are fitted in the present Patrol Craft and this type of engine is preferred in order to reduce the upheaval in logistic support. Engines now in service have proved to be reliable and all except major defects and overhauls are well within the scope of the ship's staff.
26.
Communications. Besides the normal communications secure Ship-Shore voice communications are essential for the peculiar circumstances of Hong Kong.
27. Accommodation. There should be sufficient accommodation for the crew plus up to two Police personnel. Some extra accommodation will be required for training billets. The operational spaces including Machinery Control Room and accommodation should be airconditioned.
28. Complement. The number of personnel required to operate and maintain the new craft should be the minimum.
29. Training. The craft should be such that minimal extra training will be required for those operating and maintaining it. In view of the mixed UK/LEP manning policy in the Hong Kong Squadron this training should be readily available in the UK for Senior Rates, and the training necessary for junior LEP ratings must be such that it can be done in HMS TAMAR.
30. Logistic Support. Fuel, water, dry and refrigerated stowage should be provided to give an endurance of seven days. No distilling capability is required.
31.
Surveillance. Radar is required for both surveillance and navigation, and low light binocular surveillance for normal peacetime patrolling.
32.
Electronic Sensors and Countermeasures.
considered necessary.
33. Weapons
Neither ESM nor ECM is
a. General. It is considered that the maximum effective range of any proposed weapon for the replacement patrol craft need not be more than 6,000 yards. This range is probably the maximum at which any simple optical direction system could achieve success and is the maximum effective target indication range in Colony waters due to land masses and proliferation of contacts.
6 of 7 SECRET
No comments yet.
Private notes are available after approval.