Prop Shaft

[Andrewcook]

Here is this bit of disturbing news about the Royal Navy's New Queen  Elizabeth Air Craft having a Prop Shaf problem why as in the Old days Steam Ships never had any of these problems due to bad workmanship?  As to the Norfolk Broads boats do they have any problems with them? As to this Brand New Air Craft Carrier Queen Elizabeth

[BrundallNavy]

This is not the first time it’s had prop shaft problems. I guess they don’t build them like they use to. 

[Smoggy]

21 minutes ago, Andrewcook said:

As to the Norfolk Broads boats do they have any problems with them?

It's a whole lot easier to align a small cruisers shaft/engine but it still has to be done.

[Vaughan]

They obviously didn't get a proper "trial run" from the builders.

You are supposed to give the stern gland grease cap a half turn every morning.

[Regulo]

Apparently, it's rust on a prop shaft coupling. The shaft has to be built in separate sections, joined by couplings, and that seems to be where problems are occurring. 

[Smoggy]

36 minutes ago, Vaughan said:

You are supposed to give the stern gland grease cap a half turn every morning.

Assuming it has a greaser, mine don't just a raw water feed from the oil cooler and a vent pipe, I would imagine modern builds would use the lip seal type nowadays to keep a dry bilge.

 

[ChrisB]

Maybe the name is a Jonah. The much loved QE2, now in retirement in Dubai was plagued with problems during her first 10 years or so:-

 

And in 1983, after running down to The Falklands at full chat the previous year she failed to keep about 50% of her commitments.