Big lifeboat drop

[Presuming Ed]

http://www.ybw.com/auto/newsdesk/20090614133119mbmnews.html

55 metres. Would be one hell of a ride, no?

 

[tuf-luf]

You betcha!!

Location? Lucky buggers inside (someone's Navy blokes I assume)?

 

[jonny walker]

I'd have thought it was training for offshore drilling rig evacuation, do naval ships really get to 55 metres above the water, serious target if they do!

I've often thought the thing at Warsash looked a bit puckering

 

[tuf-luf]

I'd have thought it was training for offshore drilling rig evacuation, do naval ships really get to 55 metres above the water, serious target if they do!
I've often thought the thing at Warsash looked a bit puckering

Navy? Have you ever been on the deck of an aircraft carrier? Neither have I. But I'd guesstimate that they might be close to/over that height above sea level eh.

EDIT: but you're probably correct about the offshore rig evac program.

 

[kent_island_sailor]

My USN buddy told me that they jump from 80 feet into a pool for practice because that is the height of an aircraft carrier deck.

From jumping into a quarry I can tell you if you land wrong from 80 feet it HURTS!

I'd have thought it was training for offshore drilling rig evacuation, do naval ships really get to 55 metres above the water, serious target if they do!
I've often thought the thing at Warsash looked a bit puckering

Navy? Have you ever been on the deck of an aircraft carrier? Neither have I. But I'd guesstimate that they might be close to/over that height above sea level eh.

EDIT: but you're probably correct about the offshore rig evac program.

 

[IrieMon]

30 tonnes ! The seating must be similar to a coaster ride. How long would it take to get the occupants secured when an oil rig is going tits-up in a North Sea gale ?

Thanks for posting

 

[Snarley]

55 meters is well above any carriers flight deck. This is for Oil Rig abandonment. Also the same system is used on some rather large commercial ships. I have zero interest for this ride! Well maybe one time! But when those rigs go Kaboom this looks like a quick way off. Never heard of intentional jump of the Carrier in any Navy for training. But yes 90 feet is about right for a Nimitz.

 

[Presuming Ed]

30 tonnes ! The seating must be similar to a coaster ride. How long would it take to get the occupants secured when an oil rig is going tits-up in a North Sea gale ?
Thanks for posting

AIUI it's actually pretty quick to load - you face backwards.

 

[HamishMacdonald]

My ex physics teacher, who before that was SBS (pretty much the UK equivalent of the SEALs), told us stories of jumping of aircraft carrier decks in/carrying all his SCUBA kit and extras for training missions.

 

[Crash]

55 meters is well above any carriers flight deck. This is for Oil Rig abandonment. Also the same system is used on some rather large commercial ships. I have zero interest for this ride! Well maybe one time! But when those rigs go Kaboom this looks like a quick way off. Never heard of intentional jump of the Carrier in any Navy for training. But yes 90 feet is about right for a Nimitz.

I never wanted to try my ejection seat out either...but if the jet was going to seriously go tits up while flying, it was nice to have the option to get out right away. I would put this in the same category. No reason to do it just for fun, but it the rig is coming apart, it sure beats hanging around.

 

[Omer]

It is not only the height that matters. You probably wouldnt experience anything more drastic than a free fall, or roughly one G. The fun is during the entry into the drink. I wonder what kind of a G force that corresponds to. If the air time is close to 2 seconds, you would be doing over 200 km per hour when you hit the water. If the damn thing comes to a stop at a fraction of a second you are in for a serious experience. If it lands in any way other than nose first, you are in serious trouble.

 

[pippi]

I see these things all the time in various sizes on the ships that come into the docks. Thanks for posting launching pictures, I've alwasy wondered about that. One of the ships had their pod in the water motoring around not too long ago.

 

[Presuming Ed]

 

[pudnoc]

"schat harding"

is this norwegian for "brown shorts"?

 

[kent_island_sailor]

They didn't jump off a carrier - they jumped off a platform at the same height as a carrier deck.

55 meters is well above any carriers flight deck. This is for Oil Rig abandonment. Also the same system is used on some rather large commercial ships. I have zero interest for this ride! Well maybe one time! But when those rigs go Kaboom this looks like a quick way off. Never heard of intentional jump of the Carrier in any Navy for training. But yes 90 feet is about right for a Nimitz.

 

[miahmouse]

My ex physics teacher, who before that was SBS (pretty much the UK equivalent of the SEALs), told us stories of jumping of aircraft carrier decks in/carrying all his SCUBA kit and extras for training missions.

this I highly doubt... from a lowered elevator maybe... from the deck would just be needlessly stupid

 

[HamishMacdonald]

The SBS don't have a reputation for giving much of a crap about danger - or for bullshitting.

I accept that I might be remembering some details wrong, but if any bunch of crazy fuckers would do it, they would.

 

[Rain Man]

It is not only the height that matters. You probably wouldnt experience anything more drastic than a free fall, or roughly one G. The fun is during the entry into the drink. I wonder what kind of a G force that corresponds to. If the air time is close to 2 seconds, you would be doing over 200 km per hour when you hit the water. If the damn thing comes to a stop at a fraction of a second you are in for a serious experience. If it lands in any way other than nose first, you are in serious trouble.

Simple physics. If you fall from 55m your impact velocity is 33m/s or 118 km/h or 74 mph. If the thing goes, say, 2m down into the water before stopping, that represents a deceleration of 269 m/s/s or 27g. It is a misconception that "g's" are a force - "g" is acceleration.

The human body can take about 25 g before it starts to "fall apart". So I'm guessing that these things are designed to go a lot further into the water before they pop up. If they stop over a distance of 3m the acceleration goes down to 18g.

The pictures don't show clearly how far it goes into the water. I'm guessing it is about 4 m which would make the impact quite survivable without broken bones, provided the occupants were restrained.

dash

 

[Guitar]

It is not only the height that matters. You probably wouldnt experience anything more drastic than a free fall, or roughly one G. The fun is during the entry into the drink. I wonder what kind of a G force that corresponds to. If the air time is close to 2 seconds, you would be doing over 200 km per hour when you hit the water. If the damn thing comes to a stop at a fraction of a second you are in for a serious experience. If it lands in any way other than nose first, you are in serious trouble.

Simple physics. If you fall from 55m your impact velocity is 33m/s or 118 km/h or 74 mph. If the thing goes, say, 2m down into the water before stopping, that represents a deceleration of 269 m/s/s or 27g. It is a misconception that "g's" are a force - "g" is acceleration.

The human body can take about 25 g before it starts to "fall apart". So I'm guessing that these things are designed to go a lot further into the water before they pop up. If they stop over a distance of 3m the acceleration goes down to 18g.

The pictures don't show clearly how far it goes into the water. I'm guessing it is about 4 m which would make the impact quite survivable without broken bones, provided the occupants were restrained.

dash

The boat surfaced with powerful positive headway and no internal or external damage. "The high drop height makes the boat go very deep, around 11m under the water, and gives it a lot of momentum," said Ove Roessland, the company's CEO.