Aamir Hussain
PDF THINK TANK: CONSULTANT
- Joined
- Jan 28, 2007
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Interesting info. Yes Leanders hull form was one of the most succesful design and was culmination of Whitby, Rothesay classes etc.
As far as the Type 21 is concerned, the seakeeping was an area of concern specially in North ans South Atlantic. However, the real reason for quick disposal was a combo of:
It was always a stop gap design. A commerical, off the shelf buy from Vosper Thornycraft instead of a purpose built design for RN. Some of shipboard systems destined for the new class were still under develpment that is why the first time in history of RN buy.
Aluminium Superstructure -- first used in this class. The firefighting drill and systems were inadequate for this type building material resulted in loss of couple of boats in the Falklands conflict.
Cracking of upper hull, amidships in line with the funnel and the deck.
The hull was strengthened with horizontal bracing and an enhnaced fire fighting system was intalled during refit prior to transfer to PN - a higher volume/head pumps for water/seawater and specialised chemicals retardant tanks were installed.
PN boats are required to patrol relatively much calmer waters than say south or north atlantic. Therefore, they are usefull units for their currnt operational areas and role.
you must admit they are handsome boats with sleek lines.
As far as the Type 21 is concerned, the seakeeping was an area of concern specially in North ans South Atlantic. However, the real reason for quick disposal was a combo of:
It was always a stop gap design. A commerical, off the shelf buy from Vosper Thornycraft instead of a purpose built design for RN. Some of shipboard systems destined for the new class were still under develpment that is why the first time in history of RN buy.
Aluminium Superstructure -- first used in this class. The firefighting drill and systems were inadequate for this type building material resulted in loss of couple of boats in the Falklands conflict.
Cracking of upper hull, amidships in line with the funnel and the deck.
The hull was strengthened with horizontal bracing and an enhnaced fire fighting system was intalled during refit prior to transfer to PN - a higher volume/head pumps for water/seawater and specialised chemicals retardant tanks were installed.
PN boats are required to patrol relatively much calmer waters than say south or north atlantic. Therefore, they are usefull units for their currnt operational areas and role.
you must admit they are handsome boats with sleek lines.