Vanguard Class Sub / Trident II

Vanguard Class Sub / Trident II

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Discussion

dirty boy

Original Poster:

14,703 posts

210 months

Friday 21st October 2011
quotequote all
Okay, I know Wiki isn't always that reliable but two stats seem odd

Vanguard draught 39ft
http://en.wikipedia.org/wiki/Vanguard_class_submar...

Trident II length 44ft
http://en.wikipedia.org/wiki/Trident_II



Given they're fired out of the top of the sub (right?) do they have to bring the sub to the surface, load half of the missile for instance, raise it, then add the other half?

How do they fit it in? Fire etc?

Oily Nails

2,932 posts

201 months

Friday 21st October 2011
quotequote all
dirty boy said:
Okay, I know Wiki isn't always that reliable but two stats seem odd

Vanguard draught 39ft
http://en.wikipedia.org/wiki/Vanguard_class_submar...

Trident II length 44ft
http://en.wikipedia.org/wiki/Trident_II



Given they're fired out of the top of the sub (right?) do they have to bring the sub to the surface, load half of the missile for instance, raise it, then add the other half?

How do they fit it in? Fire etc?
Is the draft not the distance from the waterline to the bottom of the keel?
Therefore the minimum depth of water that the vessel can sail in.
If the Sub is on the surface it has a draft of 39ft and then there is all the hull above water and so a 49ft missile will easily fit into it

phumy

5,674 posts

238 months

Friday 21st October 2011
quotequote all
Oily Nails said:
Is the draft not the distance from the waterline to the bottom of the keel?
Therefore the minimum depth of water that the vessel can sail in.
If the Sub is on the surface it has a draft of 39ft and then there is all the hull above water and so a 49ft missile will easily fit into it
Correct.

dirty boy

Original Poster:

14,703 posts

210 months

Friday 21st October 2011
quotequote all
phumy said:
Correct.
You'd have thought i'd have considered that.

I'll give myself a kick.

Vipers

32,900 posts

229 months

Friday 21st October 2011
quotequote all
For subs, it is referred to as "Keel depth",




smile

Tango13

8,455 posts

177 months

Friday 21st October 2011
quotequote all
They don't fire the missle out of the silo either, it's ejected/blown out with compressed air and the solid fuel is only ignited when the missle is above the surface of the ocean.

When the Americans were first working on Polaris they were working around the clock to perfect the technology, some body made the joke that SSBN stood for Saturdays, Sundays and a Bunch of Nights

Oily Nails

2,932 posts

201 months

Friday 21st October 2011
quotequote all
phumy said:
Oily Nails said:
Is the draft not the distance from the waterline to the bottom of the keel?
Therefore the minimum depth of water that the vessel can sail in.
If the Sub is on the surface it has a draft of 39ft and then there is all the hull above water and so a 49ft missile will easily fit into it
Correct.
:woohooWoohoo I was right biggrin