Max speed of vessel whilst TMS in water

[johnnie]

What is the max speed the vessel should go if transiting between two relatively short locations with the TMS still in the water?

Thanks

Archie

[K2]

There are a few things to consider but you don’t give any detail. I suggest you let your supervisor assess the situation and make any decisions.

😉

[timebandit]

Go to the point where your Lars/crane start to buckle then just back of a touch !

[johnnie]

So none of you know.

Maybe someone else will. It’s just out of interest. Lets say the tms is at 300m. The vessel heads north. It has a kilometre to transit. The current is 1 knot from the north.

[Andy Shiers]

🙄

[K2]

Archie

What class ROV are you talking about?
Does the TMS have thrust?
Is the sub in or out of the TMS?
What is the TMS weight in water?
What is the spec of the main lift umbilical?
What is the bollard pull of the sub?
If not in the TMS, how much tether have you got out?
What is the variation of seabed, hence water depth over the 1km?
What is the sea state?

Your posts are vague.

Sit down and talk it through with your supervisor, they should be able to give you all the answers you need.

😉

[James McLauchlan]

Try 2kts. See how it goes. 😉

[johnnie]

Archie

What class ROV are you talking about?
Does the TMS have thrust?
Is the sub in or out of the TMS?
What is the TMS weight in water?
What is the spec of the main lift umbilical?
What is the bollard pull of the sub?
If not in the TMS, how much tether have you got out?
What is the variation of seabed, hence water depth over the 1km?
What is the sea state?

Your posts are vague.

Sit down and talk it through with your supervisor, they should be able to give you all the answers you need.

😉

its a videoray

[K2]

🙄

Suspected this and your ‘contract’ post were a wind-up. All future posts will be treated the same.

You are now on my ‘ignore’ list.

😉

[Samuel Sears]

ya I was pretty sure he was trolling as well.

[Samuel Sears]

so some TMS have propulsion to counter tether drag?

[T-Boy]

So none of you know.

Maybe someone else will. It’s just out of interest. Lets say the tms is at 300m. The vessel heads north. It has a kilometre to transit. The current is 1 knot from the north.

WTF – Bring it back to deck, do your transit, and relaunch you slack arse! By the time you did a click at 1 Kt you could have cracked on with more work.

[K2]

Samsears88

http://smd.co.uk/products/work-class-rov-systems/garage-tms.htm

http://www.f-e-t.com/our_products_technologies/subsea-solutions/tether-management-systems-tms/

Of course, how / whether you use these systems is down to individual ROV crew supervisors.

😉

[Etienne Demers]

I am sorry but this thread is hilarious.

…but the guys on ROV world told me 10kts was okay lolllllll

It cannot be standardized, ask the supervisor.

[Samuel Sears]

Nice one, thanks K2 🙂

[Author]

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