What does obsolete mean?

Obsolescence management for electronics is a big problem. Suppliers stop making key components and the replacement may not perform in you bit of kit as well as you need. Low volume suppliers, and the marine trade is low volume compared to many other markets, are very vulnerable to component obsolescence and the cost of support quickly becomes extortionate or impossible. Whilst full support may not be practical the kit may well work fine for years, solid state electronice is very reliable, but when something does fail and available spares are used up there is little the supplier can do.
 
Obsolescence management for electronics is a big problem. Suppliers stop making key components and the replacement may not perform in you bit of kit as well as you need. Low volume suppliers, and the marine trade is low volume compared to many other markets, are very vulnerable to component obsolescence and the cost of support quickly becomes extortionate or impossible. Whilst full support may not be practical the kit may well work fine for years, solid state electronice is very reliable, but when something does fail and available spares are used up there is little the supplier can do.

It generally isn't cost effective to try & repair any electronic items anyway - at least not the high volume kit.
 
It generally isn't cost effective to try & repair any electronic items anyway - at least not the high volume kit.

I wasn't really thinking of component replacement though that can be cost effective with low volume stuff but board replacement, and in general once the production run is complete there will be no more boards because the manufacturer cannot make more boards as key components are no longer available.

The company I worked for used to organise 'lifetime buys' of key components to ensure availability of spares for the product lifetime
 
'Obsolete' doesn't mean it's useless or ineffective (while it's still working). But each bit of a boat has a 'life span' after which it's hard to assign any residual value to it when computing how much a boat is worth.

For instance, all electronics are written down in four years.
The wire rigging is written down in ten.
The sails are written down in 12 or so.
The engine in 15, etc.

Now there are plenty of people using stuff much older than this, but as a rule of thumb, it gives an indication of their 'commercial life span'. It also allows comparison between similar boats on the market where one has a new engine, 15 year old sails, etc, versus another with new rig, original engine and two sails, three years old.
 
'Obsolete' doesn't mean it's useless or ineffective (while it's still working). But each bit of a boat has a 'life span' after which it's hard to assign any residual value to it when computing how much a boat is worth.

For instance, all electronics are written down in four years.
The wire rigging is written down in ten.
The sails are written down in 12 or so.
The engine in 15, etc.

Now there are plenty of people using stuff much older than this, but as a rule of thumb, it gives an indication of their 'commercial life span'. It also allows comparison between similar boats on the market where one has a new engine, 15 year old sails, etc, versus another with new rig, original engine and two sails, three years old.

Interesting. Can I ask where you got these from? Who does this writing down? I'm not being snarky - I really would like to know.

Thanks.
 
Well, 'writing down' capital items is normal practice in accounting when working out the value of assets.

However with boats, we don't have the luxury of guidance by HMRC, so other rules of thumb have to be developed. Some, like ten years for wire rigging, will come from the insurance underwriters, whilst deriving the others follows a similar yard stick of when an item is considered to be 'beyond economic repair' should it fail, and therefore is more likely to be replaced by new in such circumstances.

You can debate the time intervals, but the idea that everything on board is already on its decline to worthlessness should stop people listing refits done, and items bought, say in 1995 as representing significant value when offering their boat to the market.
 
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