Research vessel sea trial videos
 

Sea trials of the Maryland research vessel are going well. We saw 24 knots
briefly but she'll probably never go that fast again as there is still one
more large winch to go on. Hard over full speed turns are just right with a
bit of roll in.

Click the new picture on my web site (second one down):

http://home.maine.rr.com/rlma

to get to a page of videos and pictures that will be updated frequently.

There is also a video of maximum acceleration at:

http://home.maine.rr.com/rlma/Running.wmv

These speeds are in fairly shallow water but that will be typical of her
operating area.

--
Roger Long

Research vessel sea trial videos
 

On 2008-10-01 22:34:30 -0400, "Roger Long" said:

Sea trials of the Maryland research vessel are going well. We saw 24 knots
briefly but she'll probably never go that fast again as there is still one
more large winch to go on. Hard over full speed turns are just right with a
bit of roll in.

Click the new picture on my web site (second one down):

http://home.maine.rr.com/rlma

to get to a page of videos and pictures that will be updated frequently.

There is also a video of maximum acceleration at:

http://home.maine.rr.com/rlma/Running.wmv

These speeds are in fairly shallow water but that will be typical of her
operating area.

Have to say that the last show a non-event. Boat sped up, nothing
particularly untoward happened.

CONGRATS Roger!

Sweet ride, though I refuse to pay the fuel bills.

--
Jere Lull
Xan-à-Deux -- Tanzer 28 #4 out of Tolchester, MD
Xan's pages: http://web.mac.com/jerelull/iWeb/Xan/
Our BVI trips & tips: http://homepage.mac.com/jerelull/BVI/

Research vessel sea trial videos
 

On Oct 1, 10:34*pm, "Roger Long" wrote:
Sea trials of the Maryland research vessel are going well. We saw 24 knots
briefly but she'll probably never go that fast again as there is still one
more large winch to go on. *Hard over full speed turns are just right with a
bit of roll in.

Click the new picture on my web site (second one down):

http://home.maine.rr.com/rlma

to get to a page of videos and pictures that will be updated frequently.

There is also a video of maximum acceleration at:

http://home.maine.rr.com/rlma/Running.wmv

These speeds are in fairly shallow water but that will be typical of her
operating area.

--


Pretty good, I didn't think that jet drives could get off the dime
like that.

Does the boat have a conventional rudder or steering only with the
jets?

Fresh Breezes- Doug King

Research vessel sea trial videos
 

On Thu, 02 Oct 2008 04:26:01 GMT, Jere Lull wrote:

On 2008-10-01 22:34:30 -0400, "Roger Long" said:

Sea trials of the Maryland research vessel are going well. We saw 24 knots
briefly but she'll probably never go that fast again as there is still one
more large winch to go on. Hard over full speed turns are just right with a
bit of roll in.

Click the new picture on my web site (second one down):

http://home.maine.rr.com/rlma

to get to a page of videos and pictures that will be updated frequently.

There is also a video of maximum acceleration at:

http://home.maine.rr.com/rlma/Running.wmv

These speeds are in fairly shallow water but that will be typical of her
operating area.

Have to say that the last show a non-event. Boat sped up, nothing
particularly untoward happened.

CONGRATS Roger!

Sweet ride, though I refuse to pay the fuel bills.

That wake angle looked perfect for a water ski tow line - or ten.
28 mph plus, I imagine?

Brian W

Research vessel sea trial videos
 

"Brian Whatcott" wrote in message
...
On Thu, 02 Oct 2008 04:26:01 GMT, Jere Lull wrote:

On 2008-10-01 22:34:30 -0400, "Roger Long" said:

Sea trials of the Maryland research vessel are going well. We saw 24
knots
briefly but she'll probably never go that fast again as there is still
one
more large winch to go on. Hard over full speed turns are just right
with a
bit of roll in.

Click the new picture on my web site (second one down):

http://home.maine.rr.com/rlma

to get to a page of videos and pictures that will be updated frequently.

There is also a video of maximum acceleration at:

http://home.maine.rr.com/rlma/Running.wmv

These speeds are in fairly shallow water but that will be typical of her
operating area.

Have to say that the last show a non-event. Boat sped up, nothing
particularly untoward happened.

CONGRATS Roger!

Sweet ride, though I refuse to pay the fuel bills.

That wake angle looked perfect for a water ski tow line - or ten.
28 mph plus, I imagine?

Brian W

When I look at the stern I saw what appears to be an hydraulic crane. If so
why was that design selected in lieu of a fully articulated hydraulic crane
seen on navies frigates?
Denis M.

Research vessel sea trial videos
 

"Denis M" wrote

When I look at the stern I saw what appears to be an hydraulic crane. If
so why was that design selected in lieu of a fully articulated hydraulic
crane seen on navies frigates?

It's a hydraulic A-frame which works better for handling the gear deployed
on oceanographic vessels fora lot of reasons I don't have time to go into
now. I put an articulated crane on my first oceanographic vessel years ago
and she now has an A-frame.

--
Roger Long

Research vessel sea trial videos
 

No rudders. The jets are arranged so that neutral thrust can be produced
when the engines are in gear by directing water equally fore and aft. The
engines are put in gear as soon as it's time to move the boat and don't go
into neutral until stopped. There is reverse but it is just for clearing
debris.

--
Roger Long

Research vessel sea trial videos
 

22 - 23 knots is tops. Not too bad for a boat carrying so much heavy gear.

--
Roger Long

Research vessel sea trial videos
 

"Roger Long" wrote in message
...
"Denis M" wrote

When I look at the stern I saw what appears to be an hydraulic crane. If
so why was that design selected in lieu of a fully articulated hydraulic
crane seen on navies frigates?

It's a hydraulic A-frame which works better for handling the gear deployed
on oceanographic vessels fora lot of reasons I don't have time to go into
now. I put an articulated crane on my first oceanographic vessel years
ago and she now has an A-frame.

--
Roger Long

Thanks for taking the time to reply.

The articulated crane is more compact and quick to take action. But the
A-frame is much more powerful and reliable.

Agreed, when installed on a research vessel that can turn on a dime and has
enough stern buoyancy and space its more capable.



Denis M

Research vessel sea trial videos
 

On Thu, 02 Oct 2008 21:03:42 -0500, Brian Whatcott
wrote:

On Thu, 02 Oct 2008 04:26:01 GMT, Jere Lull wrote:

On 2008-10-01 22:34:30 -0400, "Roger Long" said:

Sea trials of the Maryland research vessel are going well. We saw 24 knots
briefly but she'll probably never go that fast again as there is still one
more large winch to go on. Hard over full speed turns are just right with a
bit of roll in.

Click the new picture on my web site (second one down):

http://home.maine.rr.com/rlma

to get to a page of videos and pictures that will be updated frequently.

There is also a video of maximum acceleration at:

http://home.maine.rr.com/rlma/Running.wmv

These speeds are in fairly shallow water but that will be typical of her
operating area.

Have to say that the last show a non-event. Boat sped up, nothing
particularly untoward happened.

CONGRATS Roger!

Sweet ride, though I refuse to pay the fuel bills.

That wake angle looked perfect for a water ski tow line - or ten.
28 mph plus, I imagine?

The standard speed for slalom ski competition is exactly 35 MPH.
The boats are all inboards designed for the purpose.

Casady